diff options
192 files changed, 1648 insertions, 1101 deletions
@@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 39 -EXTRAVERSION = -rc7 +EXTRAVERSION = NAME = Flesh-Eating Bats with Fangs # *DOCUMENTATION* diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h index 058937bf5a77..b1834166922d 100644 --- a/arch/alpha/include/asm/unistd.h +++ b/arch/alpha/include/asm/unistd.h @@ -452,10 +452,14 @@ #define __NR_fanotify_init 494 #define __NR_fanotify_mark 495 #define __NR_prlimit64 496 +#define __NR_name_to_handle_at 497 +#define __NR_open_by_handle_at 498 +#define __NR_clock_adjtime 499 +#define __NR_syncfs 500 #ifdef __KERNEL__ -#define NR_SYSCALLS 497 +#define NR_SYSCALLS 501 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S index a6a1de9db16f..15f999d41c75 100644 --- a/arch/alpha/kernel/systbls.S +++ b/arch/alpha/kernel/systbls.S @@ -498,23 +498,27 @@ sys_call_table: .quad sys_ni_syscall /* sys_timerfd */ .quad sys_eventfd .quad sys_recvmmsg - .quad sys_fallocate /* 480 */ + .quad sys_fallocate /* 480 */ .quad sys_timerfd_create .quad sys_timerfd_settime .quad sys_timerfd_gettime .quad sys_signalfd4 - .quad sys_eventfd2 /* 485 */ + .quad sys_eventfd2 /* 485 */ .quad sys_epoll_create1 .quad sys_dup3 .quad sys_pipe2 .quad sys_inotify_init1 - .quad sys_preadv /* 490 */ + .quad sys_preadv /* 490 */ .quad sys_pwritev .quad sys_rt_tgsigqueueinfo .quad sys_perf_event_open .quad sys_fanotify_init - .quad sys_fanotify_mark /* 495 */ + .quad sys_fanotify_mark /* 495 */ .quad sys_prlimit64 + .quad sys_name_to_handle_at + .quad sys_open_by_handle_at + .quad sys_clock_adjtime + .quad sys_syncfs /* 500 */ .size sys_call_table, . - sys_call_table .type sys_call_table, @object diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c index 918e8e0b72ff..818e74ed45dc 100644 --- a/arch/alpha/kernel/time.c +++ b/arch/alpha/kernel/time.c @@ -375,8 +375,7 @@ static struct clocksource clocksource_rpcc = { static inline void register_rpcc_clocksource(long cycle_freq) { - clocksource_calc_mult_shift(&clocksource_rpcc, cycle_freq, 4); - clocksource_register(&clocksource_rpcc); + clocksource_register_hz(&clocksource_rpcc, cycle_freq); } #else /* !CONFIG_SMP */ static inline void register_rpcc_clocksource(long cycle_freq) diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c index 99218a5299ca..52dbdf3ab66c 100644 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ b/arch/arm/mach-omap2/board-3430sdp.c @@ -59,24 +59,6 @@ #define TWL4030_MSECURE_GPIO 22 -/* FIXME: These values need to be updated based on more profiling on 3430sdp*/ -static struct cpuidle_params omap3_cpuidle_params_table[] = { - /* C1 */ - {1, 2, 2, 5}, - /* C2 */ - {1, 10, 10, 30}, - /* C3 */ - {1, 50, 50, 300}, - /* C4 */ - {1, 1500, 1800, 4000}, - /* C5 */ - {1, 2500, 7500, 12000}, - /* C6 */ - {1, 3000, 8500, 15000}, - /* C7 */ - {1, 10000, 30000, 300000}, -}; - static uint32_t board_keymap[] = { KEY(0, 0, KEY_LEFT), KEY(0, 1, KEY_RIGHT), @@ -800,7 +782,6 @@ static void __init omap_3430sdp_init(void) omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); omap_board_config = sdp3430_config; omap_board_config_size = ARRAY_SIZE(sdp3430_config); - omap3_pm_init_cpuidle(omap3_cpuidle_params_table); omap3430_i2c_init(); omap_display_init(&sdp3430_dss_data); if (omap_rev() > OMAP3430_REV_ES1_0) diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c index f8ba20a14e62..fec4cac8fa0a 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -58,21 +58,25 @@ static struct platform_device leds_gpio = { }, }; +/* + * cpuidle C-states definition override from the default values. + * The 'exit_latency' field is the sum of sleep and wake-up latencies. + */ static struct cpuidle_params rx51_cpuidle_params[] = { /* C1 */ - {1, 110, 162, 5}, + {110 + 162, 5 , 1}, /* C2 */ - {1, 106, 180, 309}, + {106 + 180, 309, 1}, /* C3 */ - {0, 107, 410, 46057}, + {107 + 410, 46057, 0}, /* C4 */ - {0, 121, 3374, 46057}, + {121 + 3374, 46057, 0}, /* C5 */ - {1, 855, 1146, 46057}, + {855 + 1146, 46057, 1}, /* C6 */ - {0, 7580, 4134, 484329}, + {7580 + 4134, 484329, 0}, /* C7 */ - {1, 7505, 15274, 484329}, + {7505 + 15274, 484329, 1}, }; static struct omap_lcd_config rx51_lcd_config = { diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index 1c240eff3918..4bf6e6e8b100 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -36,36 +36,6 @@ #ifdef CONFIG_CPU_IDLE -#define OMAP3_MAX_STATES 7 -#define OMAP3_STATE_C1 0 /* C1 - MPU WFI + Core active */ -#define OMAP3_STATE_C2 1 /* C2 - MPU WFI + Core inactive */ -#define OMAP3_STATE_C3 2 /* C3 - MPU CSWR + Core inactive */ -#define OMAP3_STATE_C4 3 /* C4 - MPU OFF + Core iactive */ -#define OMAP3_STATE_C5 4 /* C5 - MPU RET + Core RET */ -#define OMAP3_STATE_C6 5 /* C6 - MPU OFF + Core RET */ -#define OMAP3_STATE_C7 6 /* C7 - MPU OFF + Core OFF */ - -#define OMAP3_STATE_MAX OMAP3_STATE_C7 - -#define CPUIDLE_FLAG_CHECK_BM 0x10000 /* use omap3_enter_idle_bm() */ - -struct omap3_processor_cx { - u8 valid; - u8 type; - u32 sleep_latency; - u32 wakeup_latency; - u32 mpu_state; - u32 core_state; - u32 threshold; - u32 flags; - const char *desc; -}; - -struct omap3_processor_cx omap3_power_states[OMAP3_MAX_STATES]; -struct omap3_processor_cx current_cx_state; -struct powerdomain *mpu_pd, *core_pd, *per_pd; -struct powerdomain *cam_pd; - /* * The latencies/thresholds for various C states have * to be configured from the respective board files. @@ -75,27 +45,31 @@ struct powerdomain *cam_pd; */ static struct cpuidle_params cpuidle_params_table[] = { /* C1 */ - {1, 2, 2, 5}, + {2 + 2, 5, 1}, /* C2 */ - {1, 10, 10, 30}, + {10 + 10, 30, 1}, /* C3 */ - {1, 50, 50, 300}, + {50 + 50, 300, 1}, /* C4 */ - {1, 1500, 1800, 4000}, + {1500 + 1800, 4000, 1}, /* C5 */ - {1, 2500, 7500, 12000}, + {2500 + 7500, 12000, 1}, /* C6 */ - {1, 3000, 8500, 15000}, + {3000 + 8500, 15000, 1}, /* C7 */ - {1, 10000, 30000, 300000}, + {10000 + 30000, 300000, 1}, }; +#define OMAP3_NUM_STATES ARRAY_SIZE(cpuidle_params_table) -static int omap3_idle_bm_check(void) -{ - if (!omap3_can_sleep()) - return 1; - return 0; -} +/* Mach specific information to be recorded in the C-state driver_data */ +struct omap3_idle_statedata { + u32 mpu_state; + u32 core_state; + u8 valid; +}; +struct omap3_idle_statedata omap3_idle_data[OMAP3_NUM_STATES]; + +struct powerdomain *mpu_pd, *core_pd, *per_pd, *cam_pd; static int _cpuidle_allow_idle(struct powerdomain *pwrdm, struct clockdomain *clkdm) @@ -122,12 +96,10 @@ static int _cpuidle_deny_idle(struct powerdomain *pwrdm, static int omap3_enter_idle(struct cpuidle_device *dev, struct cpuidle_state *state) { - struct omap3_processor_cx *cx = cpuidle_get_statedata(state); + struct omap3_idle_statedata *cx = cpuidle_get_statedata(state); struct timespec ts_preidle, ts_postidle, ts_idle; u32 mpu_state = cx->mpu_state, core_state = cx->core_state; - current_cx_state = *cx; - /* Used to keep track of the total time in idle */ getnstimeofday(&ts_preidle); @@ -140,7 +112,8 @@ static int omap3_enter_idle(struct cpuidle_device *dev, if (omap_irq_pending() || need_resched()) goto return_sleep_time; - if (cx->type == OMAP3_STATE_C1) { + /* Deny idle for C1 */ + if (state == &dev->states[0]) { pwrdm_for_each_clkdm(mpu_pd, _cpuidle_deny_idle); pwrdm_for_each_clkdm(core_pd, _cpuidle_deny_idle); } @@ -148,7 +121,8 @@ static int omap3_enter_idle(struct cpuidle_device *dev, /* Execute ARM wfi */ omap_sram_idle(); - if (cx->type == OMAP3_STATE_C1) { + /* Re-allow idle for C1 */ + if (state == &dev->states[0]) { pwrdm_for_each_clkdm(mpu_pd, _cpuidle_allow_idle); pwrdm_for_each_clkdm(core_pd, _cpuidle_allow_idle); } @@ -164,41 +138,53 @@ return_sleep_time: } /** - * next_valid_state - Find next valid c-state + * next_valid_state - Find next valid C-state * @dev: cpuidle device - * @state: Currently selected c-state + * @state: Currently selected C-state * * If the current state is valid, it is returned back to the caller. * Else, this function searches for a lower c-state which is still - * valid (as defined in omap3_power_states[]). + * valid. + * + * A state is valid if the 'valid' field is enabled and + * if it satisfies the enable_off_mode condition. */ static struct cpuidle_state *next_valid_state(struct cpuidle_device *dev, - struct cpuidle_state *curr) + struct cpuidle_state *curr) { struct cpuidle_state *next = NULL; - struct omap3_processor_cx *cx; + struct omap3_idle_statedata *cx = cpuidle_get_statedata(curr); + u32 mpu_deepest_state = PWRDM_POWER_RET; + u32 core_deepest_state = PWRDM_POWER_RET; - cx = (struct omap3_processor_cx *)cpuidle_get_statedata(curr); + if (enable_off_mode) { + mpu_deepest_state = PWRDM_POWER_OFF; + /* + * Erratum i583: valable for ES rev < Es1.2 on 3630. + * CORE OFF mode is not supported in a stable form, restrict + * instead the CORE state to RET. + */ + if (!IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583)) + core_deepest_state = PWRDM_POWER_OFF; + } /* Check if current state is valid */ - if (cx->valid) { + if ((cx->valid) && + (cx->mpu_state >= mpu_deepest_state) && + (cx->core_state >= core_deepest_state)) { return curr; } else { - u8 idx = OMAP3_STATE_MAX; + int idx = OMAP3_NUM_STATES - 1; - /* - * Reach the current state starting at highest C-state - */ - for (; idx >= OMAP3_STATE_C1; idx--) { + /* Reach the current state starting at highest C-state */ + for (; idx >= 0; idx--) { if (&dev->states[idx] == curr) { next = &dev->states[idx]; break; } } - /* - * Should never hit this condition. - */ + /* Should never hit this condition */ WARN_ON(next == NULL); /* @@ -206,17 +192,17 @@ static struct cpuidle_state *next_valid_state(struct cpuidle_device *dev, * Start search from the next (lower) state. */ idx--; - for (; idx >= OMAP3_STATE_C1; idx--) { - struct omap3_processor_cx *cx; - + for (; idx >= 0; idx--) { cx = cpuidle_get_statedata(&dev->states[idx]); - if (cx->valid) { + if ((cx->valid) && + (cx->mpu_state >= mpu_deepest_state) && + (cx->core_state >= core_deepest_state)) { next = &dev->states[idx]; break; } } /* - * C1 and C2 are always valid. + * C1 is always valid. * So, no need to check for 'next==NULL' outside this loop. */ } @@ -229,36 +215,22 @@ static struct cpuidle_state *next_valid_state(struct cpuidle_device *dev, * @dev: cpuidle device * @state: The target state to be programmed * - * Used for C states with CPUIDLE_FLAG_CHECK_BM flag set. This - * function checks for any pending activity and then programs the - * device to the specified or a safer state. + * This function checks for any pending activity and then programs + * the device to the specified or a safer state. */ static int omap3_enter_idle_bm(struct cpuidle_device *dev, struct cpuidle_state *state) { - struct cpuidle_state *new_state = next_valid_state(dev, state); - u32 core_next_state, per_next_state = 0, per_saved_state = 0; - u32 cam_state; - struct omap3_processor_cx *cx; + struct cpuidle_state *new_state; + u32 core_next_state, per_next_state = 0, per_saved_state = 0, cam_state; + struct omap3_idle_statedata *cx; int ret; - if ((state->flags & CPUIDLE_FLAG_CHECK_BM) && omap3_idle_bm_check()) { - BUG_ON(!dev->safe_state); + if (!omap3_can_sleep()) { new_state = dev->safe_state; goto select_state; } - cx = cpuidle_get_statedata(state); - core_next_state = cx->core_state; - - /* - * FIXME: we currently manage device-specific idle states - * for PER and CORE in combination with CPU-specific - * idle states. This is wrong, and device-specific - * idle management needs to be separated out into - * its own code. - */ - /* * Prevent idle completely if CAM is active. * CAM does not have wakeup capability in OMAP3. @@ -270,9 +242,19 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev, } /* + * FIXME: we currently manage device-specific idle states + * for PER and CORE in combination with CPU-specific + * idle states. This is wrong, and device-specific + * idle management needs to be separated out into + * its own code. + */ + + /* * Prevent PER off if CORE is not in retention or off as this * would disable PER wakeups completely. */ + cx = cpuidle_get_statedata(state); + core_next_state = cx->core_state; per_next_state = per_saved_state = pwrdm_read_next_pwrst(per_pd); if ((per_next_state == PWRDM_POWER_OFF) && (core_next_state > PWRDM_POWER_RET)) @@ -282,6 +264,8 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev, if (per_next_state != per_saved_state) pwrdm_set_next_pwrst(per_pd, per_next_state); + new_state = next_valid_state(dev, state); + select_state: dev->last_state = new_state; ret = omap3_enter_idle(dev, new_state); @@ -295,31 +279,6 @@ select_state: DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev); -/** - * omap3_cpuidle_update_states() - Update the cpuidle states - * @mpu_deepest_state: Enable states up to and including this for mpu domain - * @core_deepest_state: Enable states up to and including this for core domain - * - * This goes through the list of states available and enables and disables the - * validity of C states based on deepest state that can be achieved for the - * variable domain - */ -void omap3_cpuidle_update_states(u32 mpu_deepest_state, u32 core_deepest_state) -{ - int i; - - for (i = OMAP3_STATE_C1; i < OMAP3_MAX_STATES; i++) { - struct omap3_processor_cx *cx = &omap3_power_states[i]; - - if ((cx->mpu_state >= mpu_deepest_state) && - (cx->core_state >= core_deepest_state)) { - cx->valid = 1; - } else { - cx->valid = 0; - } - } -} - void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params) { int i; @@ -327,212 +286,109 @@ void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params) if (!cpuidle_board_params) return; - for (i = OMAP3_STATE_C1; i < OMAP3_MAX_STATES; i++) { - cpuidle_params_table[i].valid = - cpuidle_board_params[i].valid; - cpuidle_params_table[i].sleep_latency = - cpuidle_board_params[i].sleep_latency; - cpuidle_params_table[i].wake_latency = - cpuidle_board_params[i].wake_latency; - cpuidle_params_table[i].threshold = - cpuidle_board_params[i].threshold; + for (i = 0; i < OMAP3_NUM_STATES; i++) { + cpuidle_params_table[i].valid = cpuidle_board_params[i].valid; + cpuidle_params_table[i].exit_latency = + cpuidle_board_params[i].exit_latency; + cpuidle_params_table[i].target_residency = + cpuidle_board_params[i].target_residency; } return; } -/* omap3_init_power_states - Initialises the OMAP3 specific C states. - * - * Below is the desciption of each C state. - * C1 . MPU WFI + Core active - * C2 . MPU WFI + Core inactive - * C3 . MPU CSWR + Core inactive - * C4 . MPU OFF + Core inactive - * C5 . MPU CSWR + Core CSWR - * C6 . MPU OFF + Core CSWR - * C7 . MPU OFF + Core OFF - */ -void omap_init_power_states(void) -{ - /* C1 . MPU WFI + Core active */ - omap3_power_states[OMAP3_STATE_C1].valid = - cpuidle_params_table[OMAP3_STATE_C1].valid; - omap3_power_states[OMAP3_STATE_C1].type = OMAP3_STATE_C1; - omap3_power_states[OMAP3_STATE_C1].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C1].sleep_latency; - omap3_power_states[OMAP3_STATE_C1].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C1].wake_latency; - omap3_power_states[OMAP3_STATE_C1].threshold = - cpuidle_params_table[OMAP3_STATE_C1].threshold; - omap3_power_states[OMAP3_STATE_C1].mpu_state = PWRDM_POWER_ON; - omap3_power_states[OMAP3_STATE_C1].core_state = PWRDM_POWER_ON; - omap3_power_states[OMAP3_STATE_C1].flags = CPUIDLE_FLAG_TIME_VALID; - omap3_power_states[OMAP3_STATE_C1].desc = "MPU ON + CORE ON"; - - /* C2 . MPU WFI + Core inactive */ - omap3_power_states[OMAP3_STATE_C2].valid = - cpuidle_params_table[OMAP3_STATE_C2].valid; - omap3_power_states[OMAP3_STATE_C2].type = OMAP3_STATE_C2; - omap3_power_states[OMAP3_STATE_C2].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C2].sleep_latency; - omap3_power_states[OMAP3_STATE_C2].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C2].wake_latency; - omap3_power_states[OMAP3_STATE_C2].threshold = - cpuidle_params_table[OMAP3_STATE_C2].threshold; - omap3_power_states[OMAP3_STATE_C2].mpu_state = PWRDM_POWER_ON; - omap3_power_states[OMAP3_STATE_C2].core_state = PWRDM_POWER_ON; - omap3_power_states[OMAP3_STATE_C2].flags = CPUIDLE_FLAG_TIME_VALID | - CPUIDLE_FLAG_CHECK_BM; - omap3_power_states[OMAP3_STATE_C2].desc = "MPU ON + CORE ON"; - - /* C3 . MPU CSWR + Core inactive */ - omap3_power_states[OMAP3_STATE_C3].valid = - cpuidle_params_table[OMAP3_STATE_C3].valid; - omap3_power_states[OMAP3_STATE_C3].type = OMAP3_STATE_C3; - omap3_power_states[OMAP3_STATE_C3].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C3].sleep_latency; - omap3_power_states[OMAP3_STATE_C3].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C3].wake_latency; - omap3_power_states[OMAP3_STATE_C3].threshold = - cpuidle_params_table[OMAP3_STATE_C3].threshold; - omap3_power_states[OMAP3_STATE_C3].mpu_state = PWRDM_POWER_RET; - omap3_power_states[OMAP3_STATE_C3].core_state = PWRDM_POWER_ON; - omap3_power_states[OMAP3_STATE_C3].flags = CPUIDLE_FLAG_TIME_VALID | - CPUIDLE_FLAG_CHECK_BM; - omap3_power_states[OMAP3_STATE_C3].desc = "MPU RET + CORE ON"; - - /* C4 . MPU OFF + Core inactive */ - omap3_power_states[OMAP3_STATE_C4].valid = - cpuidle_params_table[OMAP3_STATE_C4].valid; - omap3_power_states[OMAP3_STATE_C4].type = OMAP3_STATE_C4; - omap3_power_states[OMAP3_STATE_C4].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C4].sleep_latency; - omap3_power_states[OMAP3_STATE_C4].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C4].wake_latency; - omap3_power_states[OMAP3_STATE_C4].threshold = - cpuidle_params_table[OMAP3_STATE_C4].threshold; - omap3_power_states[OMAP3_STATE_C4].mpu_state = PWRDM_POWER_OFF; - omap3_power_states[OMAP3_STATE_C4].core_state = PWRDM_POWER_ON; - omap3_power_states[OMAP3_STATE_C4].flags = CPUIDLE_FLAG_TIME_VALID | - CPUIDLE_FLAG_CHECK_BM; - omap3_power_states[OMAP3_STATE_C4].desc = "MPU OFF + CORE ON"; - - /* C5 . MPU CSWR + Core CSWR*/ - omap3_power_states[OMAP3_STATE_C5].valid = - cpuidle_params_table[OMAP3_STATE_C5].valid; - omap3_power_states[OMAP3_STATE_C5].type = OMAP3_STATE_C5; - omap3_power_states[OMAP3_STATE_C5].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C5].sleep_latency; - omap3_power_states[OMAP3_STATE_C5].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C5].wake_latency; - omap3_power_states[OMAP3_STATE_C5].threshold = - cpuidle_params_table[OMAP3_STATE_C5].threshold; - omap3_power_states[OMAP3_STATE_C5].mpu_state = PWRDM_POWER_RET; - omap3_power_states[OMAP3_STATE_C5].core_state = PWRDM_POWER_RET; - omap3_power_states[OMAP3_STATE_C5].flags = CPUIDLE_FLAG_TIME_VALID | - CPUIDLE_FLAG_CHECK_BM; - omap3_power_states[OMAP3_STATE_C5].desc = "MPU RET + CORE RET"; - - /* C6 . MPU OFF + Core CSWR */ - omap3_power_states[OMAP3_STATE_C6].valid = - cpuidle_params_table[OMAP3_STATE_C6].valid; - omap3_power_states[OMAP3_STATE_C6].type = OMAP3_STATE_C6; - omap3_power_states[OMAP3_STATE_C6].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C6].sleep_latency; - omap3_power_states[OMAP3_STATE_C6].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C6].wake_latency; - omap3_power_states[OMAP3_STATE_C6].threshold = - cpuidle_params_table[OMAP3_STATE_C6].threshold; - omap3_power_states[OMAP3_STATE_C6].mpu_state = PWRDM_POWER_OFF; - omap3_power_states[OMAP3_STATE_C6].core_state = PWRDM_POWER_RET; - omap3_power_states[OMAP3_STATE_C6].flags = CPUIDLE_FLAG_TIME_VALID | - CPUIDLE_FLAG_CHECK_BM; - omap3_power_states[OMAP3_STATE_C6].desc = "MPU OFF + CORE RET"; - - /* C7 . MPU OFF + Core OFF */ - omap3_power_states[OMAP3_STATE_C7].valid = - cpuidle_params_table[OMAP3_STATE_C7].valid; - omap3_power_states[OMAP3_STATE_C7].type = OMAP3_STATE_C7; - omap3_power_states[OMAP3_STATE_C7].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C7].sleep_latency; - omap3_power_states[OMAP3_STATE_C7].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C7].wake_latency; - omap3_power_states[OMAP3_STATE_C7].threshold = - cpuidle_params_table[OMAP3_STATE_C7].threshold; - omap3_power_states[OMAP3_STATE_C7].mpu_state = PWRDM_POWER_OFF; - omap3_power_states[OMAP3_STATE_C7].core_state = PWRDM_POWER_OFF; - omap3_power_states[OMAP3_STATE_C7].flags = CPUIDLE_FLAG_TIME_VALID | - CPUIDLE_FLAG_CHECK_BM; - omap3_power_states[OMAP3_STATE_C7].desc = "MPU OFF + CORE OFF"; - - /* - * Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot - * enable OFF mode in a stable form for previous revisions. - * we disable C7 state as a result. - */ - if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583)) { - omap3_power_states[OMAP3_STATE_C7].valid = 0; - cpuidle_params_table[OMAP3_STATE_C7].valid = 0; - pr_warn("%s: core off state C7 disabled due to i583\n", - __func__); - } -} - struct cpuidle_driver omap3_idle_driver = { .name = "omap3_idle", .owner = THIS_MODULE, }; +/* Helper to fill the C-state common data and register the driver_data */ +static inline struct omap3_idle_statedata *_fill_cstate( + struct cpuidle_device *dev, + int idx, const char *descr) +{ + struct omap3_idle_statedata *cx = &omap3_idle_data[idx]; + struct cpuidle_state *state = &dev->states[idx]; + + state->exit_latency = cpuidle_params_table[idx].exit_latency; + state->target_residency = cpuidle_params_table[idx].target_residency; + state->flags = CPUIDLE_FLAG_TIME_VALID; + state->enter = omap3_enter_idle_bm; + cx->valid = cpuidle_params_table[idx].valid; + sprintf(state->name, "C%d", idx + 1); + strncpy(state->desc, descr, CPUIDLE_DESC_LEN); + cpuidle_set_statedata(state, cx); + + return cx; +} + /** * omap3_idle_init - Init routine for OMAP3 idle * - * Registers the OMAP3 specific cpuidle driver with the cpuidle + * Registers the OMAP3 specific cpuidle driver to the cpuidle * framework with the valid set of states. */ int __init omap3_idle_init(void) { - int i, count = 0; - struct omap3_processor_cx *cx; - struct cpuidle_state *state; struct cpuidle_device *dev; + struct omap3_idle_statedata *cx; mpu_pd = pwrdm_lookup("mpu_pwrdm"); core_pd = pwrdm_lookup("core_pwrdm"); per_pd = pwrdm_lookup("per_pwrdm"); cam_pd = pwrdm_lookup("cam_pwrdm"); - omap_init_power_states(); cpuidle_register_driver(&omap3_idle_driver); - dev = &per_cpu(omap3_idle_dev, smp_processor_id()); - for (i = OMAP3_STATE_C1; i < OMAP3_MAX_STATES; i++) { - cx = &omap3_power_states[i]; - state = &dev->states[count]; - - if (!cx->valid) - continue; - cpuidle_set_statedata(state, cx); - state->exit_latency = cx->sleep_latency + cx->wakeup_latency; - state->target_residency = cx->threshold; - state->flags = cx->flags; - state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ? - omap3_enter_idle_bm : omap3_enter_idle; - if (cx->type == OMAP3_STATE_C1) - dev->safe_state = state; - sprintf(state->name, "C%d", count+1); - strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN); - count++; - } + /* C1 . MPU WFI + Core active */ + cx = _fill_cstate(dev, 0, "MPU ON + CORE ON"); + (&dev->states[0])->enter = omap3_enter_idle; + dev->safe_state = &dev->states[0]; + cx->valid = 1; /* C1 is always valid */ + cx->mpu_state = PWRDM_POWER_ON; + cx->core_state = PWRDM_POWER_ON; - if (!count) - return -EINVAL; - dev->state_count = count; + /* C2 . MPU WFI + Core inactive */ + cx = _fill_cstate(dev, 1, "MPU ON + CORE ON"); + cx->mpu_state = PWRDM_POWER_ON; + cx->core_state = PWRDM_POWER_ON; + + /* C3 . MPU CSWR + Core inactive */ + cx = _fill_cstate(dev, 2, "MPU RET + CORE ON"); + cx->mpu_state = PWRDM_POWER_RET; + cx->core_state = PWRDM_POWER_ON; - if (enable_off_mode) - omap3_cpuidle_update_states(PWRDM_POWER_OFF, PWRDM_POWER_OFF); - else - omap3_cpuidle_update_states(PWRDM_POWER_RET, PWRDM_POWER_RET); + /* C4 . MPU OFF + Core inactive */ + cx = _fill_cstate(dev, 3, "MPU OFF + CORE ON"); + cx->mpu_state = PWRDM_POWER_OFF; + cx->core_state = PWRDM_POWER_ON; + + /* C5 . MPU RET + Core RET */ + cx = _fill_cstate(dev, 4, "MPU RET + CORE RET"); + cx->mpu_state = PWRDM_POWER_RET; + cx->core_state = PWRDM_POWER_RET; + + /* C6 . MPU OFF + Core RET */ + cx = _fill_cstate(dev, 5, "MPU OFF + CORE RET"); + cx->mpu_state = PWRDM_POWER_OFF; + cx->core_state = PWRDM_POWER_RET; + + /* C7 . MPU OFF + Core OFF */ + cx = _fill_cstate(dev, 6, "MPU OFF + CORE OFF"); + /* + * Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot + * enable OFF mode in a stable form for previous revisions. + * We disable C7 state as a result. + */ + if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583)) { + cx->valid = 0; + pr_warn("%s: core off state C7 disabled due to i583\n", + __func__); + } + cx->mpu_state = PWRDM_POWER_OFF; + cx->core_state = PWRDM_POWER_OFF; + dev->state_count = OMAP3_NUM_STATES; if (cpuidle_register_device(dev)) { printk(KERN_ERR "%s: CPUidle register device failed\n", __func__); diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h index 797bfd12b643..45bcfce77352 100644 --- a/arch/arm/mach-omap2/pm.h +++ b/arch/arm/mach-omap2/pm.h @@ -36,11 +36,16 @@ static inline int omap4_opp_init(void) } #endif +/* + * cpuidle mach specific parameters + * + * The board code can override the default C-states definition using + * omap3_pm_init_cpuidle + */ struct cpuidle_params { - u8 valid; - u32 sleep_latency; - u32 wake_latency; - u32 threshold; + u32 exit_latency; /* exit_latency = sleep + wake-up latencies */ + u32 target_residency; + u8 valid; /* validates the C-state */ }; #if defined(CONFIG_PM) && defined(CONFIG_CPU_IDLE) @@ -73,10 +78,6 @@ extern u32 sleep_while_idle; #define sleep_while_idle 0 #endif -#if defined(CONFIG_CPU_IDLE) -extern void omap3_cpuidle_update_states(u32, u32); -#endif - #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); extern int pm_dbg_regset_save(int reg_set); diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 0c5e3a46a3ad..c155c9d1c82c 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -779,18 +779,6 @@ void omap3_pm_off_mode_enable(int enable) else state = PWRDM_POWER_RET; -#ifdef CONFIG_CPU_IDLE - /* - * Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot - * enable OFF mode in a stable form for previous revisions, restrict - * instead to RET - */ - if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583)) - omap3_cpuidle_update_states(state, PWRDM_POWER_RET); - else - omap3_cpuidle_update_states(state, state); -#endif - list_for_each_entry(pwrst, &pwrst_list, node) { if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583) && pwrst->pwrdm == core_pwrdm && @@ -895,8 +883,6 @@ static int __init omap3_pm_init(void) pm_errata_configure(); - printk(KERN_ERR "Power Management for TI OMAP3.\n"); - /* XXX prcm_setup_regs needs to be before enabling hw * supervised mode for powerdomains */ prcm_setup_regs(); diff --git a/arch/mips/ar7/gpio.c b/arch/mips/ar7/gpio.c index 425dfa5d6e12..bb571bcdb8f2 100644 --- a/arch/mips/ar7/gpio.c +++ b/arch/mips/ar7/gpio.c @@ -325,9 +325,7 @@ int __init ar7_gpio_init(void) size = 0x1f; } - gpch->regs = ioremap_nocache(AR7_REGS_GPIO, - AR7_REGS_GPIO + 0x10); - + gpch->regs = ioremap_nocache(AR7_REGS_GPIO, size); if (!gpch->regs) { printk(KERN_ERR "%s: failed to ioremap regs\n", gpch->chip.label); diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index 655f849bd08d..7aa37ddfca4b 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -5,7 +5,9 @@ #include <asm/cache.h> #include <asm-generic/dma-coherent.h> +#ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */ #include <dma-coherence.h> +#endif extern struct dma_map_ops *mips_dma_map_ops; diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 71350f7f2d88..e9b3af27d844 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -374,7 +374,8 @@ void __noreturn die(const char *str, struct pt_regs *regs) unsigned long dvpret = dvpe(); #endif /* CONFIG_MIPS_MT_SMTC */ - notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs), SIGSEGV); + if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs), SIGSEGV) == NOTIFY_STOP) + sig = 0; console_verbose(); spin_lock_irq(&die_lock); @@ -383,9 +384,6 @@ void __noreturn die(const char *str, struct pt_regs *regs) mips_mt_regdump(dvpret); #endif /* CONFIG_MIPS_MT_SMTC */ - if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs), SIGSEGV) == NOTIFY_STOP) - sig = 0; - printk("%s[#%d]:\n", str, ++die_counter); show_registers(regs); add_taint(TAINT_DIE); diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c index 37de05d595e7..6c47dfeb7be3 100644 --- a/arch/mips/rb532/gpio.c +++ b/arch/mips/rb532/gpio.c @@ -185,7 +185,7 @@ int __init rb532_gpio_init(void) struct resource *r; r = rb532_gpio_reg0_res; - rb532_gpio_chip->regbase = ioremap_nocache(r->start, r->end - r->start); + rb532_gpio_chip->regbase = ioremap_nocache(r->start, resource_size(r)); if (!rb532_gpio_chip->regbase) { printk(KERN_ERR "rb532: cannot remap GPIO register 0\n"); diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c index 188272934cfb..104faa8aa23c 100644 --- a/arch/powerpc/platforms/83xx/suspend.c +++ b/arch/powerpc/platforms/83xx/suspend.c @@ -318,17 +318,20 @@ static const struct platform_suspend_ops mpc83xx_suspend_ops = { .end = mpc83xx_suspend_end, }; +static struct of_device_id pmc_match[]; static int pmc_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct device_node *np = ofdev->dev.of_node; struct resource res; struct pmc_type *type; int ret = 0; - if (!ofdev->dev.of_match) + match = of_match_device(pmc_match, &ofdev->dev); + if (!match) return -EINVAL; - type = ofdev->dev.of_match->data; + type = match->data; if (!of_device_is_available(np)) return -ENODEV; diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index d5679dc1e20f..01cd2f089512 100644 --- a/arch/powerpc/sysdev/fsl_msi.c +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -304,8 +304,10 @@ static int __devinit fsl_msi_setup_hwirq(struct fsl_msi *msi, return 0; } +static const struct of_device_id fsl_of_msi_ids[]; static int __devinit fsl_of_msi_probe(struct platform_device *dev) { + const struct of_device_id *match; struct fsl_msi *msi; struct resource res; int err, i, j, irq_index, count; @@ -316,9 +318,10 @@ static int __devinit fsl_of_msi_probe(struct platform_device *dev) u32 offset; static const u32 all_avail[] = { 0, NR_MSI_IRQS }; - if (!dev->dev.of_match) + match = of_match_device(fsl_of_msi_ids, &dev->dev); + if (!match) return -EINVAL; - features = dev->dev.of_match->data; + features = match->data; printk(KERN_DEBUG "Setting up Freescale MSI support\n"); diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c index f679c57644d5..1e34f29e58bb 100644 --- a/arch/sparc/kernel/apc.c +++ b/arch/sparc/kernel/apc.c @@ -165,7 +165,7 @@ static int __devinit apc_probe(struct platform_device *op) return 0; } -static struct of_device_id __initdata apc_match[] = { +static struct of_device_id apc_match[] = { { .name = APC_OBPNAME, }, diff --git a/arch/sparc/kernel/pci_sabre.c b/arch/sparc/kernel/pci_sabre.c index 948068a083fc..d1840dbdaa2f 100644 --- a/arch/sparc/kernel/pci_sabre.c +++ b/arch/sparc/kernel/pci_sabre.c @@ -452,8 +452,10 @@ static void __devinit sabre_pbm_init(struct pci_pbm_info *pbm, sabre_scan_bus(pbm, &op->dev); } +static const struct of_device_id sabre_match[]; static int __devinit sabre_probe(struct platform_device *op) { + const struct of_device_id *match; const struct linux_prom64_registers *pr_regs; struct device_node *dp = op->dev.of_node; struct pci_pbm_info *pbm; @@ -463,7 +465,8 @@ static int __devinit sabre_probe(struct platform_device *op) const u32 *vdma; u64 clear_irq; - hummingbird_p = op->dev.of_match && (op->dev.of_match->data != NULL); + match = of_match_device(sabre_match, &op->dev); + hummingbird_p = match && (match->data != NULL); if (!hummingbird_p) { struct device_node *cpu_dp; diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c index fecfcb2063c8..283fbc329a43 100644 --- a/arch/sparc/kernel/pci_schizo.c +++ b/arch/sparc/kernel/pci_schizo.c @@ -1458,11 +1458,15 @@ out_err: return err; } +static const struct of_device_id schizo_match[]; static int __devinit schizo_probe(struct platform_device *op) { - if (!op->dev.of_match) + const struct of_device_id *match; + + match = of_match_device(schizo_match, &op->dev); + if (!match) return -EINVAL; - return __schizo_init(op, (unsigned long) op->dev.of_match->data); + return __schizo_init(op, (unsigned long)match->data); } /* The ordering of this table is very important. Some Tomatillo diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c index 93d7b4465f8d..6a585d393580 100644 --- a/arch/sparc/kernel/pmc.c +++ b/arch/sparc/kernel/pmc.c @@ -69,7 +69,7 @@ static int __devinit pmc_probe(struct platform_device *op) return 0; } -static struct of_device_id __initdata pmc_match[] = { +static struct of_device_id pmc_match[] = { { .name = PMC_OBPNAME, }, diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index 91c10fb70858..850a1360c0d6 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -53,6 +53,7 @@ cpumask_t smp_commenced_mask = CPU_MASK_NONE; void __cpuinit smp_store_cpu_info(int id) { int cpu_node; + int mid; cpu_data(id).udelay_val = loops_per_jiffy; @@ -60,10 +61,13 @@ void __cpuinit smp_store_cpu_info(int id) cpu_data(id).clock_tick = prom_getintdefault(cpu_node, "clock-frequency", 0); cpu_data(id).prom_node = cpu_node; - cpu_data(id).mid = cpu_get_hwmid(cpu_node); + mid = cpu_get_hwmid(cpu_node); - if (cpu_data(id).mid < 0) - panic("No MID found for CPU%d at node 0x%08d", id, cpu_node); + if (mid < 0) { + printk(KERN_NOTICE "No MID found for CPU%d at node 0x%08d", id, cpu_node); + mid = 0; + } + cpu_data(id).mid = mid; } void __init smp_cpus_done(unsigned int max_cpus) diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c index 4e236391b635..96046a4024c2 100644 --- a/arch/sparc/kernel/time_32.c +++ b/arch/sparc/kernel/time_32.c @@ -168,7 +168,7 @@ static int __devinit clock_probe(struct platform_device *op) return 0; } -static struct of_device_id __initdata clock_match[] = { +static struct of_device_id clock_match[] = { { .name = "eeprom", }, diff --git a/arch/sparc/lib/checksum_32.S b/arch/sparc/lib/checksum_32.S index 3632cb34e914..0084c3361e15 100644 --- a/arch/sparc/lib/checksum_32.S +++ b/arch/sparc/lib/checksum_32.S @@ -289,10 +289,16 @@ cc_end_cruft: /* Also, handle the alignment code out of band. */ cc_dword_align: - cmp %g1, 6 - bl,a ccte + cmp %g1, 16 + bge 1f + srl %g1, 1, %o3 +2: cmp %o3, 0 + be,a ccte andcc %g1, 0xf, %o3 - andcc %o0, 0x1, %g0 + andcc %o3, %o0, %g0 ! Check %o0 only (%o1 has the same last 2 bits) + be,a 2b + srl %o3, 1, %o3 +1: andcc %o0, 0x1, %g0 bne ccslow andcc %o0, 0x2, %g0 be 1f diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c index 6ea77979531c..42827cafa6af 100644 --- a/arch/um/os-Linux/util.c +++ b/arch/um/os-Linux/util.c @@ -5,6 +5,7 @@ #include <stdio.h> #include <stdlib.h> +#include <unistd.h> #include <errno.h> #include <signal.h> #include <string.h> @@ -75,6 +76,26 @@ void setup_hostinfo(char *buf, int len) host.release, host.version, host.machine); } +/* + * We cannot use glibc's abort(). It makes use of tgkill() which + * has no effect within UML's kernel threads. + * After that glibc would execute an invalid instruction to kill + * the calling process and UML crashes with SIGSEGV. + */ +static inline void __attribute__ ((noreturn)) uml_abort(void) +{ + sigset_t sig; + + fflush(NULL); + + if (!sigemptyset(&sig) && !sigaddset(&sig, SIGABRT)) + sigprocmask(SIG_UNBLOCK, &sig, 0); + + for (;;) + if (kill(getpid(), SIGABRT) < 0) + exit(127); +} + void os_dump_core(void) { int pid; @@ -116,5 +137,5 @@ void os_dump_core(void) while ((pid = waitpid(-1, NULL, WNOHANG | __WALL)) > 0) os_kill_ptraced_process(pid, 0); - abort(); + uml_abort(); } diff --git a/arch/x86/include/asm/apicdef.h b/arch/x86/include/asm/apicdef.h index d87988bacf3e..34595d5e1038 100644 --- a/arch/x86/include/asm/apicdef.h +++ b/arch/x86/include/asm/apicdef.h @@ -78,6 +78,7 @@ #define APIC_DEST_LOGICAL 0x00800 #define APIC_DEST_PHYSICAL 0x00000 #define APIC_DM_FIXED 0x00000 +#define APIC_DM_FIXED_MASK 0x00700 #define APIC_DM_LOWEST 0x00100 #define APIC_DM_SMI 0x00200 #define APIC_DM_REMRD 0x00300 diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h index 7db7723d1f32..d56187c6b838 100644 --- a/arch/x86/include/asm/pgtable_types.h +++ b/arch/x86/include/asm/pgtable_types.h @@ -299,6 +299,7 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, /* Install a pte for a particular vaddr in kernel space. */ void set_pte_vaddr(unsigned long vaddr, pte_t pte); +extern void native_pagetable_reserve(u64 start, u64 end); #ifdef CONFIG_X86_32 extern void native_pagetable_setup_start(pgd_t *base); extern void native_pagetable_setup_done(pgd_t *base); diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h index 3e094af443c3..130f1eeee5fe 100644 --- a/arch/x86/include/asm/uv/uv_bau.h +++ b/arch/x86/include/asm/uv/uv_bau.h @@ -94,6 +94,8 @@ /* after this # consecutive successes, bump up the throttle if it was lowered */ #define COMPLETE_THRESHOLD 5 +#define UV_LB_SUBNODEID 0x10 + /* * number of entries in the destination side payload queue */ @@ -124,7 +126,7 @@ * The distribution specification (32 bytes) is interpreted as a 256-bit * distribution vector. Adjacent bits correspond to consecutive even numbered * nodeIDs. The result of adding the index of a given bit to the 15-bit - * 'base_dest_nodeid' field of the header corresponds to the + * 'base_dest_nasid' field of the header corresponds to the * destination nodeID associated with that specified bit. */ struct bau_target_uvhubmask { @@ -176,7 +178,7 @@ struct bau_msg_payload { struct bau_msg_header { unsigned int dest_subnodeid:6; /* must be 0x10, for the LB */ /* bits 5:0 */ - unsigned int base_dest_nodeid:15; /* nasid of the */ + unsigned int base_dest_nasid:15; /* nasid of the */ /* bits 20:6 */ /* first bit in uvhub map */ unsigned int command:8; /* message type */ /* bits 28:21 */ @@ -378,6 +380,10 @@ struct ptc_stats { unsigned long d_rcanceled; /* number of messages canceled by resets */ }; +struct hub_and_pnode { + short uvhub; + short pnode; +}; /* * one per-cpu; to locate the software tables */ @@ -399,10 +405,12 @@ struct bau_control { int baudisabled; int set_bau_off; short cpu; + short osnode; short uvhub_cpu; short uvhub; short cpus_in_socket; short cpus_in_uvhub; + short partition_base_pnode; unsigned short message_number; unsigned short uvhub_quiesce; short socket_acknowledge_count[DEST_Q_SIZE]; @@ -422,15 +430,16 @@ struct bau_control { int congested_period; cycles_t period_time; long period_requests; + struct hub_and_pnode *target_hub_and_pnode; }; static inline int bau_uvhub_isset(int uvhub, struct bau_target_uvhubmask *dstp) { return constant_test_bit(uvhub, &dstp->bits[0]); } -static inline void bau_uvhub_set(int uvhub, struct bau_target_uvhubmask *dstp) +static inline void bau_uvhub_set(int pnode, struct bau_target_uvhubmask *dstp) { - __set_bit(uvhub, &dstp->bits[0]); + __set_bit(pnode, &dstp->bits[0]); } static inline void bau_uvhubs_clear(struct bau_target_uvhubmask *dstp, int nbits) diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h index a501741c2335..4298002d0c83 100644 --- a/arch/x86/include/asm/uv/uv_hub.h +++ b/arch/x86/include/asm/uv/uv_hub.h @@ -398,6 +398,8 @@ struct uv_blade_info { unsigned short nr_online_cpus; unsigned short pnode; short memory_nid; + spinlock_t nmi_lock; + unsigned long nmi_count; }; extern struct uv_blade_info *uv_blade_info; extern short *uv_node_to_blade; diff --git a/arch/x86/include/asm/uv/uv_mmrs.h b/arch/x86/include/asm/uv/uv_mmrs.h index 20cafeac7455..f5bb64a823d7 100644 --- a/arch/x86/include/asm/uv/uv_mmrs.h +++ b/arch/x86/include/asm/uv/uv_mmrs.h @@ -5,7 +5,7 @@ * * SGI UV MMR definitions * - * Copyright (C) 2007-2010 Silicon Graphics, Inc. All rights reserved. + * Copyright (C) 2007-2011 Silicon Graphics, Inc. All rights reserved. */ #ifndef _ASM_X86_UV_UV_MMRS_H @@ -1099,5 +1099,19 @@ union uvh_rtc1_int_config_u { } s; }; +/* ========================================================================= */ +/* UVH_SCRATCH5 */ +/* ========================================================================= */ +#define UVH_SCRATCH5 0x2d0200UL +#define UVH_SCRATCH5_32 0x00778 + +#define UVH_SCRATCH5_SCRATCH5_SHFT 0 +#define UVH_SCRATCH5_SCRATCH5_MASK 0xffffffffffffffffUL +union uvh_scratch5_u { + unsigned long v; + struct uvh_scratch5_s { + unsigned long scratch5 : 64; /* RW, W1CS */ + } s; +}; #endif /* __ASM_UV_MMRS_X86_H__ */ diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index 643ebf2e2ad8..d3d859035af9 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -68,6 +68,17 @@ struct x86_init_oem { }; /** + * struct x86_init_mapping - platform specific initial kernel pagetable setup + * @pagetable_reserve: reserve a range of addresses for kernel pagetable usage + * + * For more details on the purpose of this hook, look in + * init_memory_mapping and the commit that added it. + */ +struct x86_init_mapping { + void (*pagetable_reserve)(u64 start, u64 end); +}; + +/** * struct x86_init_paging - platform specific paging functions * @pagetable_setup_start: platform specific pre paging_init() call * @pagetable_setup_done: platform specific post paging_init() call @@ -123,6 +134,7 @@ struct x86_init_ops { struct x86_init_mpparse mpparse; struct x86_init_irqs irqs; struct x86_init_oem oem; + struct x86_init_mapping mapping; struct x86_init_paging paging; struct x86_init_timers timers; struct x86_init_iommu iommu; diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 33b10a0fc095..7acd2d2ac965 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -37,6 +37,13 @@ #include <asm/smp.h> #include <asm/x86_init.h> #include <asm/emergency-restart.h> +#include <asm/nmi.h> + +/* BMC sets a bit this MMR non-zero before sending an NMI */ +#define UVH_NMI_MMR UVH_SCRATCH5 +#define UVH_NMI_MMR_CLEAR (UVH_NMI_MMR + 8) +#define UV_NMI_PENDING_MASK (1UL << 63) +DEFINE_PER_CPU(unsigned long, cpu_last_nmi_count); DEFINE_PER_CPU(int, x2apic_extra_bits); @@ -642,18 +649,46 @@ void __cpuinit uv_cpu_init(void) */ int uv_handle_nmi(struct notifier_block *self, unsigned long reason, void *data) { + unsigned long real_uv_nmi; + int bid; + if (reason != DIE_NMIUNKNOWN) return NOTIFY_OK; if (in_crash_kexec) /* do nothing if entering the crash kernel */ return NOTIFY_OK; + /* - * Use a lock so only one cpu prints at a time - * to prevent intermixed output. + * Each blade has an MMR that indicates when an NMI has been sent + * to cpus on the blade. If an NMI is detected, atomically + * clear the MMR and update a per-blade NMI count used to + * cause each cpu on the blade to notice a new NMI. + */ + bid = uv_numa_blade_id(); + real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) & UV_NMI_PENDING_MASK); + + if (unlikely(real_uv_nmi)) { + spin_lock(&uv_blade_info[bid].nmi_lock); + real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) & UV_NMI_PENDING_MASK); + if (real_uv_nmi) { + uv_blade_info[bid].nmi_count++; + uv_write_local_mmr(UVH_NMI_MMR_CLEAR, UV_NMI_PENDING_MASK); + } + spin_unlock(&uv_blade_info[bid].nmi_lock); + } + + if (likely(__get_cpu_var(cpu_last_nmi_count) == uv_blade_info[bid].nmi_count)) + return NOTIFY_DONE; + + __get_cpu_var(cpu_last_nmi_count) = uv_blade_info[bid].nmi_count; + + /* + * Use a lock so only one cpu prints at a time. + * This prevents intermixed output. */ spin_lock(&uv_nmi_lock); - pr_info("NMI stack dump cpu %u:\n", smp_processor_id()); + pr_info("UV NMI stack dump cpu %u:\n", smp_processor_id()); dump_stack(); spin_unlock(&uv_nmi_lock); @@ -661,7 +696,8 @@ int uv_handle_nmi(struct notifier_block *self, unsigned long reason, void *data) } static struct notifier_block uv_dump_stack_nmi_nb = { - .notifier_call = uv_handle_nmi + .notifier_call = uv_handle_nmi, + .priority = NMI_LOCAL_LOW_PRIOR - 1, }; void uv_register_nmi_notifier(void) @@ -720,8 +756,9 @@ void __init uv_system_init(void) printk(KERN_DEBUG "UV: Found %d blades\n", uv_num_possible_blades()); bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades(); - uv_blade_info = kmalloc(bytes, GFP_KERNEL); + uv_blade_info = kzalloc(bytes, GFP_KERNEL); BUG_ON(!uv_blade_info); + for (blade = 0; blade < uv_num_possible_blades(); blade++) uv_blade_info[blade].memory_nid = -1; @@ -747,6 +784,7 @@ void __init uv_system_init(void) uv_blade_info[blade].pnode = pnode; uv_blade_info[blade].nr_possible_cpus = 0; uv_blade_info[blade].nr_online_cpus = 0; + spin_lock_init(&uv_blade_info[blade].nmi_lock); max_pnode = max(pnode, max_pnode); blade++; } diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index bb9eb29a52dd..6f9d1f6063e9 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -613,7 +613,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) #endif /* As a rule processors have APIC timer running in deep C states */ - if (c->x86 >= 0xf && !cpu_has_amd_erratum(amd_erratum_400)) + if (c->x86 > 0xf && !cpu_has_amd_erratum(amd_erratum_400)) set_cpu_cap(c, X86_FEATURE_ARAT); /* @@ -698,7 +698,7 @@ cpu_dev_register(amd_cpu_dev); */ const int amd_erratum_400[] = - AMD_OSVW_ERRATUM(1, AMD_MODEL_RANGE(0x0f, 0x4, 0x2, 0xff, 0xf), + AMD_OSVW_ERRATUM(1, AMD_MODEL_RANGE(0xf, 0x41, 0x2, 0xff, 0xf), AMD_MODEL_RANGE(0x10, 0x2, 0x1, 0xff, 0xf)); EXPORT_SYMBOL_GPL(amd_erratum_400); diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c index 167f97b5596e..bb0adad35143 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_amd.c +++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c @@ -509,6 +509,7 @@ recurse: out_free: if (b) { kobject_put(&b->kobj); + list_del(&b->miscj); kfree(b); } return err; diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index 6f8c5e9da97f..0f034460260d 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -446,18 +446,20 @@ void intel_init_thermal(struct cpuinfo_x86 *c) */ rdmsr(MSR_IA32_MISC_ENABLE, l, h); + h = lvtthmr_init; /* * The initial value of thermal LVT entries on all APs always reads * 0x10000 because APs are woken up by BSP issuing INIT-SIPI-SIPI * sequence to them and LVT registers are reset to 0s except for * the mask bits which are set to 1s when APs receive INIT IPI. - * Always restore the value that BIOS has programmed on AP based on - * BSP's info we saved since BIOS is always setting the same value - * for all threads/cores + * If BIOS takes over the thermal interrupt and sets its interrupt + * delivery mode to SMI (not fixed), it restores the value that the + * BIOS has programmed on AP based on BSP's info we saved since BIOS + * is always setting the same value for all threads/cores. */ - apic_write(APIC_LVTTHMR, lvtthmr_init); + if ((h & APIC_DM_FIXED_MASK) != APIC_DM_FIXED) + apic_write(APIC_LVTTHMR, lvtthmr_init); - h = lvtthmr_init; if ((l & MSR_IA32_MISC_ENABLE_TM1) && (h & APIC_DM_SMI)) { printk(KERN_DEBUG diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c index c969fd9d1566..f1a6244d7d93 100644 --- a/arch/x86/kernel/kprobes.c +++ b/arch/x86/kernel/kprobes.c @@ -1183,12 +1183,13 @@ static void __kprobes optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs) { struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); + unsigned long flags; /* This is possible if op is under delayed unoptimizing */ if (kprobe_disabled(&op->kp)) return; - preempt_disable(); + local_irq_save(flags); if (kprobe_running()) { kprobes_inc_nmissed_count(&op->kp); } else { @@ -1207,7 +1208,7 @@ static void __kprobes optimized_callback(struct optimized_kprobe *op, opt_pre_handler(&op->kp, regs); __this_cpu_write(current_kprobe, NULL); } - preempt_enable_no_resched(); + local_irq_restore(flags); } static int __kprobes copy_optimized_instructions(u8 *dest, u8 *src) diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index c11514e9128b..75ef4b18e9b7 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -61,6 +61,10 @@ struct x86_init_ops x86_init __initdata = { .banner = default_banner, }, + .mapping = { + .pagetable_reserve = native_pagetable_reserve, + }, + .paging = { .pagetable_setup_start = native_pagetable_setup_start, .pagetable_setup_done = native_pagetable_setup_done, diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 286d289b039b..37b8b0fe8320 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -81,6 +81,11 @@ static void __init find_early_table_space(unsigned long end, int use_pse, end, pgt_buf_start << PAGE_SHIFT, pgt_buf_top << PAGE_SHIFT); } +void __init native_pagetable_reserve(u64 start, u64 end) +{ + memblock_x86_reserve_range(start, end, "PGTABLE"); +} + struct map_range { unsigned long start; unsigned long end; @@ -272,9 +277,24 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, __flush_tlb_all(); + /* + * Reserve the kernel pagetable pages we used (pgt_buf_start - + * pgt_buf_end) and free the other ones (pgt_buf_end - pgt_buf_top) + * so that they can be reused for other purposes. + * + * On native it just means calling memblock_x86_reserve_range, on Xen it + * also means marking RW the pagetable pages that we allocated before + * but that haven't been used. + * + * In fact on xen we mark RO the whole range pgt_buf_start - + * pgt_buf_top, because we have to make sure that when + * init_memory_mapping reaches the pagetable pages area, it maps + * RO all the pagetable pages, including the ones that are beyond + * pgt_buf_end at that time. + */ if (!after_bootmem && pgt_buf_end > pgt_buf_start) - memblock_x86_reserve_range(pgt_buf_start << PAGE_SHIFT, - pgt_buf_end << PAGE_SHIFT, "PGTABLE"); + x86_init.mapping.pagetable_reserve(PFN_PHYS(pgt_buf_start), + PFN_PHYS(pgt_buf_end)); if (!after_bootmem) early_memtest(start, end); diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c index 7cb6424317f6..c58e0ea39ef5 100644 --- a/arch/x86/platform/uv/tlb_uv.c +++ b/arch/x86/platform/uv/tlb_uv.c @@ -699,16 +699,17 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm, unsigned long va, unsigned int cpu) { - int tcpu; - int uvhub; int locals = 0; int remotes = 0; int hubs = 0; + int tcpu; + int tpnode; struct bau_desc *bau_desc; struct cpumask *flush_mask; struct ptc_stats *stat; struct bau_control *bcp; struct bau_control *tbcp; + struct hub_and_pnode *hpp; /* kernel was booted 'nobau' */ if (nobau) @@ -750,11 +751,18 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, bau_desc += UV_ITEMS_PER_DESCRIPTOR * bcp->uvhub_cpu; bau_uvhubs_clear(&bau_desc->distribution, UV_DISTRIBUTION_SIZE); - /* cpu statistics */ for_each_cpu(tcpu, flush_mask) { - uvhub = uv_cpu_to_blade_id(tcpu); - bau_uvhub_set(uvhub, &bau_desc->distribution); - if (uvhub == bcp->uvhub) + /* + * The distribution vector is a bit map of pnodes, relative + * to the partition base pnode (and the partition base nasid + * in the header). + * Translate cpu to pnode and hub using an array stored + * in local memory. + */ + hpp = &bcp->socket_master->target_hub_and_pnode[tcpu]; + tpnode = hpp->pnode - bcp->partition_base_pnode; + bau_uvhub_set(tpnode, &bau_desc->distribution); + if (hpp->uvhub == bcp->uvhub) locals++; else remotes++; @@ -855,7 +863,7 @@ void uv_bau_message_interrupt(struct pt_regs *regs) * an interrupt, but causes an error message to be returned to * the sender. */ -static void uv_enable_timeouts(void) +static void __init uv_enable_timeouts(void) { int uvhub; int nuvhubs; @@ -1326,10 +1334,10 @@ static int __init uv_ptc_init(void) } /* - * initialize the sending side's sending buffers + * Initialize the sending side's sending buffers. */ static void -uv_activation_descriptor_init(int node, int pnode) +uv_activation_descriptor_init(int node, int pnode, int base_pnode) { int i; int cpu; @@ -1352,11 +1360,11 @@ uv_activation_descriptor_init(int node, int pnode) n = pa >> uv_nshift; m = pa & uv_mmask; + /* the 14-bit pnode */ uv_write_global_mmr64(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE, (n << UV_DESC_BASE_PNODE_SHIFT | m)); - /* - * initializing all 8 (UV_ITEMS_PER_DESCRIPTOR) descriptors for each + * Initializing all 8 (UV_ITEMS_PER_DESCRIPTOR) descriptors for each * cpu even though we only use the first one; one descriptor can * describe a broadcast to 256 uv hubs. */ @@ -1365,12 +1373,13 @@ uv_activation_descriptor_init(int node, int pnode) memset(bd2, 0, sizeof(struct bau_desc)); bd2->header.sw_ack_flag = 1; /* - * base_dest_nodeid is the nasid of the first uvhub - * in the partition. The bit map will indicate uvhub numbers, - * which are 0-N in a partition. Pnodes are unique system-wide. + * The base_dest_nasid set in the message header is the nasid + * of the first uvhub in the partition. The bit map will + * indicate destination pnode numbers relative to that base. + * They may not be consecutive if nasid striding is being used. */ - bd2->header.base_dest_nodeid = UV_PNODE_TO_NASID(uv_partition_base_pnode); - bd2->header.dest_subnodeid = 0x10; /* the LB */ + bd2->header.base_dest_nasid = UV_PNODE_TO_NASID(base_pnode); + bd2->header.dest_subnodeid = UV_LB_SUBNODEID; bd2->header.command = UV_NET_ENDPOINT_INTD; bd2->header.int_both = 1; /* @@ -1442,7 +1451,7 @@ uv_payload_queue_init(int node, int pnode) /* * Initialization of each UV hub's structures */ -static void __init uv_init_uvhub(int uvhub, int vector) +static void __init uv_init_uvhub(int uvhub, int vector, int base_pnode) { int node; int pnode; @@ -1450,11 +1459,11 @@ static void __init uv_init_uvhub(int uvhub, int vector) node = uvhub_to_first_node(uvhub); pnode = uv_blade_to_pnode(uvhub); - uv_activation_descriptor_init(node, pnode); + uv_activation_descriptor_init(node, pnode, base_pnode); uv_payload_queue_init(node, pnode); /* - * the below initialization can't be in firmware because the - * messaging IRQ will be determined by the OS + * The below initialization can't be in firmware because the + * messaging IRQ will be determined by the OS. */ apicid = uvhub_to_first_apicid(uvhub) | uv_apicid_hibits; uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, @@ -1491,10 +1500,11 @@ calculate_destination_timeout(void) /* * initialize the bau_control structure for each cpu */ -static int __init uv_init_per_cpu(int nuvhubs) +static int __init uv_init_per_cpu(int nuvhubs, int base_part_pnode) { int i; int cpu; + int tcpu; int pnode; int uvhub; int have_hmaster; @@ -1528,6 +1538,15 @@ static int __init uv_init_per_cpu(int nuvhubs) bcp = &per_cpu(bau_control, cpu); memset(bcp, 0, sizeof(struct bau_control)); pnode = uv_cpu_hub_info(cpu)->pnode; + if ((pnode - base_part_pnode) >= UV_DISTRIBUTION_SIZE) { + printk(KERN_EMERG + "cpu %d pnode %d-%d beyond %d; BAU disabled\n", + cpu, pnode, base_part_pnode, + UV_DISTRIBUTION_SIZE); + return 1; + } + bcp->osnode = cpu_to_node(cpu); + bcp->partition_base_pnode = uv_partition_base_pnode; uvhub = uv_cpu_hub_info(cpu)->numa_blade_id; *(uvhub_mask + (uvhub/8)) |= (1 << (uvhub%8)); bdp = &uvhub_descs[uvhub]; @@ -1536,7 +1555,7 @@ static int __init uv_init_per_cpu(int nuvhubs) bdp->pnode = pnode; /* kludge: 'assuming' one node per socket, and assuming that disabling a socket just leaves a gap in node numbers */ - socket = (cpu_to_node(cpu) & 1); + socket = bcp->osnode & 1; bdp->socket_mask |= (1 << socket); sdp = &bdp->socket[socket]; sdp->cpu_number[sdp->num_cpus] = cpu; @@ -1585,6 +1604,20 @@ static int __init uv_init_per_cpu(int nuvhubs) nextsocket: socket++; socket_mask = (socket_mask >> 1); + /* each socket gets a local array of pnodes/hubs */ + bcp = smaster; + bcp->target_hub_and_pnode = kmalloc_node( + sizeof(struct hub_and_pnode) * + num_possible_cpus(), GFP_KERNEL, bcp->osnode); + memset(bcp->target_hub_and_pnode, 0, + sizeof(struct hub_and_pnode) * + num_possible_cpus()); + for_each_present_cpu(tcpu) { + bcp->target_hub_and_pnode[tcpu].pnode = + uv_cpu_hub_info(tcpu)->pnode; + bcp->target_hub_and_pnode[tcpu].uvhub = + uv_cpu_hub_info(tcpu)->numa_blade_id; + } } } kfree(uvhub_descs); @@ -1637,21 +1670,22 @@ static int __init uv_bau_init(void) spin_lock_init(&disable_lock); congested_cycles = microsec_2_cycles(congested_response_us); - if (uv_init_per_cpu(nuvhubs)) { - nobau = 1; - return 0; - } - uv_partition_base_pnode = 0x7fffffff; - for (uvhub = 0; uvhub < nuvhubs; uvhub++) + for (uvhub = 0; uvhub < nuvhubs; uvhub++) { if (uv_blade_nr_possible_cpus(uvhub) && (uv_blade_to_pnode(uvhub) < uv_partition_base_pnode)) uv_partition_base_pnode = uv_blade_to_pnode(uvhub); + } + + if (uv_init_per_cpu(nuvhubs, uv_partition_base_pnode)) { + nobau = 1; + return 0; + } vector = UV_BAU_MESSAGE; for_each_possible_blade(uvhub) if (uv_blade_nr_possible_cpus(uvhub)) - uv_init_uvhub(uvhub, vector); + uv_init_uvhub(uvhub, vector, uv_partition_base_pnode); uv_enable_timeouts(); alloc_intr_gate(vector, uv_bau_message_intr1); diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 55c965b38c27..0684f3c74d53 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1275,6 +1275,20 @@ static __init void xen_pagetable_setup_start(pgd_t *base) { } +static __init void xen_mapping_pagetable_reserve(u64 start, u64 end) +{ + /* reserve the range used */ + native_pagetable_reserve(start, end); + + /* set as RW the rest */ + printk(KERN_DEBUG "xen: setting RW the range %llx - %llx\n", end, + PFN_PHYS(pgt_buf_top)); + while (end < PFN_PHYS(pgt_buf_top)) { + make_lowmem_page_readwrite(__va(end)); + end += PAGE_SIZE; + } +} + static void xen_post_allocator_init(void); static __init void xen_pagetable_setup_done(pgd_t *base) @@ -1463,119 +1477,6 @@ static int xen_pgd_alloc(struct mm_struct *mm) return ret; } -#ifdef CONFIG_X86_64 -static __initdata u64 __last_pgt_set_rw = 0; -static __initdata u64 __pgt_buf_start = 0; -static __initdata u64 __pgt_buf_end = 0; -static __initdata u64 __pgt_buf_top = 0; -/* - * As a consequence of the commit: - * - * commit 4b239f458c229de044d6905c2b0f9fe16ed9e01e - * Author: Yinghai Lu <yinghai@kernel.org> - * Date: Fri Dec 17 16:58:28 2010 -0800 - * - * x86-64, mm: Put early page table high - * - * at some point init_memory_mapping is going to reach the pagetable pages - * area and map those pages too (mapping them as normal memory that falls - * in the range of addresses passed to init_memory_mapping as argument). - * Some of those pages are already pagetable pages (they are in the range - * pgt_buf_start-pgt_buf_end) therefore they are going to be mapped RO and - * everything is fine. - * Some of these pages are not pagetable pages yet (they fall in the range - * pgt_buf_end-pgt_buf_top; for example the page at pgt_buf_end) so they - * are going to be mapped RW. When these pages become pagetable pages and - * are hooked into the pagetable, xen will find that the guest has already - * a RW mapping of them somewhere and fail the operation. - * The reason Xen requires pagetables to be RO is that the hypervisor needs - * to verify that the pagetables are valid before using them. The validation - * operations are called "pinning". - * - * In order to fix the issue we mark all the pages in the entire range - * pgt_buf_start-pgt_buf_top as RO, however when the pagetable allocation - * is completed only the range pgt_buf_start-pgt_buf_end is reserved by - * init_memory_mapping. Hence the kernel is going to crash as soon as one - * of the pages in the range pgt_buf_end-pgt_buf_top is reused (b/c those - * ranges are RO). - * - * For this reason, 'mark_rw_past_pgt' is introduced which is called _after_ - * the init_memory_mapping has completed (in a perfect world we would - * call this function from init_memory_mapping, but lets ignore that). - * - * Because we are called _after_ init_memory_mapping the pgt_buf_[start, - * end,top] have all changed to new values (b/c init_memory_mapping - * is called and setting up another new page-table). Hence, the first time - * we enter this function, we save away the pgt_buf_start value and update - * the pgt_buf_[end,top]. - * - * When we detect that the "old" pgt_buf_start through pgt_buf_end - * PFNs have been reserved (so memblock_x86_reserve_range has been called), - * we immediately set out to RW the "old" pgt_buf_end through pgt_buf_top. - * - * And then we update those "old" pgt_buf_[end|top] with the new ones - * so that we can redo this on the next pagetable. - */ -static __init void mark_rw_past_pgt(void) { - - if (pgt_buf_end > pgt_buf_start) { - u64 addr, size; - - /* Save it away. */ - if (!__pgt_buf_start) { - __pgt_buf_start = pgt_buf_start; - __pgt_buf_end = pgt_buf_end; - __pgt_buf_top = pgt_buf_top; - return; - } - /* If we get the range that starts at __pgt_buf_end that means - * the range is reserved, and that in 'init_memory_mapping' - * the 'memblock_x86_reserve_range' has been called with the - * outdated __pgt_buf_start, __pgt_buf_end (the "new" - * pgt_buf_[start|end|top] refer now to a new pagetable. - * Note: we are called _after_ the pgt_buf_[..] have been - * updated.*/ - - addr = memblock_x86_find_in_range_size(PFN_PHYS(__pgt_buf_start), - &size, PAGE_SIZE); - - /* Still not reserved, meaning 'memblock_x86_reserve_range' - * hasn't been called yet. Update the _end and _top.*/ - if (addr == PFN_PHYS(__pgt_buf_start)) { - __pgt_buf_end = pgt_buf_end; - __pgt_buf_top = pgt_buf_top; - return; - } - - /* OK, the area is reserved, meaning it is time for us to - * set RW for the old end->top PFNs. */ - - /* ..unless we had already done this. */ - if (__pgt_buf_end == __last_pgt_set_rw) - return; - - addr = PFN_PHYS(__pgt_buf_end); - - /* set as RW the rest */ - printk(KERN_DEBUG "xen: setting RW the range %llx - %llx\n", - PFN_PHYS(__pgt_buf_end), PFN_PHYS(__pgt_buf_top)); - - while (addr < PFN_PHYS(__pgt_buf_top)) { - make_lowmem_page_readwrite(__va(addr)); - addr += PAGE_SIZE; - } - /* And update everything so that we are ready for the next - * pagetable (the one created for regions past 4GB) */ - __last_pgt_set_rw = __pgt_buf_end; - __pgt_buf_start = pgt_buf_start; - __pgt_buf_end = pgt_buf_end; - __pgt_buf_top = pgt_buf_top; - } - return; -} -#else -static __init void mark_rw_past_pgt(void) { } -#endif static void xen_pgd_free(struct mm_struct *mm, pgd_t *pgd) { #ifdef CONFIG_X86_64 @@ -1602,14 +1503,6 @@ static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte) unsigned long pfn = pte_pfn(pte); /* - * A bit of optimization. We do not need to call the workaround - * when xen_set_pte_init is called with a PTE with 0 as PFN. - * That is b/c the pagetable at that point are just being populated - * with empty values and we can save some cycles by not calling - * the 'memblock' code.*/ - if (pfn) - mark_rw_past_pgt(); - /* * If the new pfn is within the range of the newly allocated * kernel pagetable, and it isn't being mapped into an * early_ioremap fixmap slot as a freshly allocated page, make sure @@ -2118,8 +2011,6 @@ __init void xen_ident_map_ISA(void) static __init void xen_post_allocator_init(void) { - mark_rw_past_pgt(); - #ifdef CONFIG_XEN_DEBUG pv_mmu_ops.make_pte = PV_CALLEE_SAVE(xen_make_pte_debug); #endif @@ -2228,6 +2119,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = { void __init xen_init_mmu_ops(void) { + x86_init.mapping.pagetable_reserve = xen_mapping_pagetable_reserve; x86_init.paging.pagetable_setup_start = xen_pagetable_setup_start; x86_init.paging.pagetable_setup_done = xen_pagetable_setup_done; pv_mmu_ops = xen_mmu_ops; diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index f0605ab2a761..471fdcc5df85 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -114,6 +114,13 @@ struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup) } EXPORT_SYMBOL_GPL(cgroup_to_blkio_cgroup); +struct blkio_cgroup *task_blkio_cgroup(struct task_struct *tsk) +{ + return container_of(task_subsys_state(tsk, blkio_subsys_id), + struct blkio_cgroup, css); +} +EXPORT_SYMBOL_GPL(task_blkio_cgroup); + static inline void blkio_update_group_weight(struct blkio_group *blkg, unsigned int weight) { diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 10919fae2d3a..c774930cc206 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -291,6 +291,7 @@ static inline void blkiocg_set_start_empty_time(struct blkio_group *blkg) {} #if defined(CONFIG_BLK_CGROUP) || defined(CONFIG_BLK_CGROUP_MODULE) extern struct blkio_cgroup blkio_root_cgroup; extern struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup); +extern struct blkio_cgroup *task_blkio_cgroup(struct task_struct *tsk); extern void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg, struct blkio_group *blkg, void *key, dev_t dev, enum blkio_policy_id plid); @@ -314,6 +315,8 @@ void blkiocg_update_io_remove_stats(struct blkio_group *blkg, struct cgroup; static inline struct blkio_cgroup * cgroup_to_blkio_cgroup(struct cgroup *cgroup) { return NULL; } +static inline struct blkio_cgroup * +task_blkio_cgroup(struct task_struct *tsk) { return NULL; } static inline void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg, struct blkio_group *blkg, void *key, dev_t dev, diff --git a/block/blk-core.c b/block/blk-core.c index a2e58eeb3549..3fe00a14822a 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -316,8 +316,10 @@ EXPORT_SYMBOL(__blk_run_queue); */ void blk_run_queue_async(struct request_queue *q) { - if (likely(!blk_queue_stopped(q))) + if (likely(!blk_queue_stopped(q))) { + __cancel_delayed_work(&q->delay_work); queue_delayed_work(kblockd_workqueue, &q->delay_work, 0); + } } EXPORT_SYMBOL(blk_run_queue_async); diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 0475a22a420d..252a81a306f7 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -160,9 +160,8 @@ static void throtl_put_tg(struct throtl_grp *tg) } static struct throtl_grp * throtl_find_alloc_tg(struct throtl_data *td, - struct cgroup *cgroup) + struct blkio_cgroup *blkcg) { - struct blkio_cgroup *blkcg = cgroup_to_blkio_cgroup(cgroup); struct throtl_grp *tg = NULL; void *key = td; struct backing_dev_info *bdi = &td->queue->backing_dev_info; @@ -229,12 +228,12 @@ done: static struct throtl_grp * throtl_get_tg(struct throtl_data *td) { - struct cgroup *cgroup; struct throtl_grp *tg = NULL; + struct blkio_cgroup *blkcg; rcu_read_lock(); - cgroup = task_cgroup(current, blkio_subsys_id); - tg = throtl_find_alloc_tg(td, cgroup); + blkcg = task_blkio_cgroup(current); + tg = throtl_find_alloc_tg(td, blkcg); if (!tg) tg = &td->root_tg; rcu_read_unlock(); diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 5b52011e3a40..ab7a9e6a9b1c 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1014,10 +1014,9 @@ void cfq_update_blkio_group_weight(void *key, struct blkio_group *blkg, cfqg->needs_update = true; } -static struct cfq_group * -cfq_find_alloc_cfqg(struct cfq_data *cfqd, struct cgroup *cgroup, int create) +static struct cfq_group * cfq_find_alloc_cfqg(struct cfq_data *cfqd, + struct blkio_cgroup *blkcg, int create) { - struct blkio_cgroup *blkcg = cgroup_to_blkio_cgroup(cgroup); struct cfq_group *cfqg = NULL; void *key = cfqd; int i, j; @@ -1079,12 +1078,12 @@ done: */ static struct cfq_group *cfq_get_cfqg(struct cfq_data *cfqd, int create) { - struct cgroup *cgroup; + struct blkio_cgroup *blkcg; struct cfq_group *cfqg = NULL; rcu_read_lock(); - cgroup = task_cgroup(current, blkio_subsys_id); - cfqg = cfq_find_alloc_cfqg(cfqd, cgroup, create); + blkcg = task_blkio_cgroup(current); + cfqg = cfq_find_alloc_cfqg(cfqd, blkcg, create); if (!cfqg && create) cfqg = &cfqd->root_group; rcu_read_unlock(); diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index ff9d832a163d..d38c40fe4ddb 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -561,27 +561,6 @@ void ahci_start_engine(struct ata_port *ap) { void __iomem *port_mmio = ahci_port_base(ap); u32 tmp; - u8 status; - - status = readl(port_mmio + PORT_TFDATA) & 0xFF; - - /* - * At end of section 10.1 of AHCI spec (rev 1.3), it states - * Software shall not set PxCMD.ST to 1 until it is determined - * that a functoinal device is present on the port as determined by - * PxTFD.STS.BSY=0, PxTFD.STS.DRQ=0 and PxSSTS.DET=3h - * - * Even though most AHCI host controllers work without this check, - * specific controller will fail under this condition - */ - if (status & (ATA_BUSY | ATA_DRQ)) - return; - else { - ahci_scr_read(&ap->link, SCR_STATUS, &tmp); - - if ((tmp & 0xf) != 0x3) - return; - } /* start DMA */ tmp = readl(port_mmio + PORT_CMD); diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index f26f2fe3480a..dad9fd660f37 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -3316,7 +3316,7 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy, struct ata_eh_context *ehc = &link->eh_context; struct ata_device *dev, *link_dev = NULL, *lpm_dev = NULL; enum ata_lpm_policy old_policy = link->lpm_policy; - bool no_dipm = ap->flags & ATA_FLAG_NO_DIPM; + bool no_dipm = link->ap->flags & ATA_FLAG_NO_DIPM; unsigned int hints = ATA_LPM_EMPTY | ATA_LPM_HIPM; unsigned int err_mask; int rc; diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c index bdd2719f3f68..bc9e702186dd 100644 --- a/drivers/atm/fore200e.c +++ b/drivers/atm/fore200e.c @@ -2643,16 +2643,19 @@ fore200e_init(struct fore200e* fore200e, struct device *parent) } #ifdef CONFIG_SBUS +static const struct of_device_id fore200e_sba_match[]; static int __devinit fore200e_sba_probe(struct platform_device *op) { + const struct of_device_id *match; const struct fore200e_bus *bus; struct fore200e *fore200e; static int index = 0; int err; - if (!op->dev.of_match) + match = of_match_device(fore200e_sba_match, &op->dev); + if (!match) return -EINVAL; - bus = op->dev.of_match->data; + bus = match->data; fore200e = kzalloc(sizeof(struct fore200e), GFP_KERNEL); if (!fore200e) diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c index 8066d086578a..e086fbbbe853 100644 --- a/drivers/block/DAC960.c +++ b/drivers/block/DAC960.c @@ -2547,7 +2547,6 @@ static bool DAC960_RegisterBlockDevice(DAC960_Controller_T *Controller) disk->major = MajorNumber; disk->first_minor = n << DAC960_MaxPartitionsBits; disk->fops = &DAC960_BlockDeviceOperations; - disk->events = DISK_EVENT_MEDIA_CHANGE; } /* Indicate the Block Device Registration completed successfully, diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c index 456c0cc90dcf..8eba86bba599 100644 --- a/drivers/block/amiflop.c +++ b/drivers/block/amiflop.c @@ -1736,7 +1736,6 @@ static int __init fd_probe_drives(void) disk->major = FLOPPY_MAJOR; disk->first_minor = drive; disk->fops = &floppy_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; sprintf(disk->disk_name, "fd%d", drive); disk->private_data = &unit[drive]; set_capacity(disk, 880*2); diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c index c871eae14120..ede16c64ff07 100644 --- a/drivers/block/ataflop.c +++ b/drivers/block/ataflop.c @@ -1964,7 +1964,6 @@ static int __init atari_floppy_init (void) unit[i].disk->first_minor = i; sprintf(unit[i].disk->disk_name, "fd%d", i); unit[i].disk->fops = &floppy_fops; - unit[i].disk->events = DISK_EVENT_MEDIA_CHANGE; unit[i].disk->private_data = &unit[i]; unit[i].disk->queue = blk_init_queue(do_fd_request, &ataflop_lock); diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 301d7a9a41a6..db8f88586c8d 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4205,7 +4205,6 @@ static int __init floppy_init(void) disks[dr]->major = FLOPPY_MAJOR; disks[dr]->first_minor = TOMINOR(dr); disks[dr]->fops = &floppy_fops; - disks[dr]->events = DISK_EVENT_MEDIA_CHANGE; sprintf(disks[dr]->disk_name, "fd%d", dr); init_timer(&motor_off_timer[dr]); diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c index 2f2ccf686251..8690e31d9932 100644 --- a/drivers/block/paride/pcd.c +++ b/drivers/block/paride/pcd.c @@ -320,7 +320,6 @@ static void pcd_init_units(void) disk->first_minor = unit; strcpy(disk->disk_name, cd->name); /* umm... */ disk->fops = &pcd_bdops; - disk->events = DISK_EVENT_MEDIA_CHANGE; } } diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 21dfdb776869..869e7676d46f 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -837,7 +837,6 @@ static void pd_probe_drive(struct pd_unit *disk) p->fops = &pd_fops; p->major = major; p->first_minor = (disk - pd) << PD_BITS; - p->events = DISK_EVENT_MEDIA_CHANGE; disk->gd = p; p->private_data = disk; p->queue = pd_queue; diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c index 7adeb1edbf43..f21b520ef419 100644 --- a/drivers/block/paride/pf.c +++ b/drivers/block/paride/pf.c @@ -294,7 +294,6 @@ static void __init pf_init_units(void) disk->first_minor = unit; strcpy(disk->disk_name, pf->name); disk->fops = &pf_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; if (!(*drives[unit])[D_PRT]) pf_drive_count++; } diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 3e904717c1c0..9712fad82bc6 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -92,6 +92,8 @@ struct rbd_client { struct list_head node; }; +struct rbd_req_coll; + /* * a single io request */ @@ -100,6 +102,24 @@ struct rbd_request { struct bio *bio; /* cloned bio */ struct page **pages; /* list of used pages */ u64 len; + int coll_index; + struct rbd_req_coll *coll; +}; + +struct rbd_req_status { + int done; + int rc; + u64 bytes; +}; + +/* + * a collection of requests + */ +struct rbd_req_coll { + int total; + int num_done; + struct kref kref; + struct rbd_req_status status[0]; }; struct rbd_snap { @@ -416,6 +436,17 @@ static void rbd_put_client(struct rbd_device *rbd_dev) rbd_dev->client = NULL; } +/* + * Destroy requests collection + */ +static void rbd_coll_release(struct kref *kref) +{ + struct rbd_req_coll *coll = + container_of(kref, struct rbd_req_coll, kref); + + dout("rbd_coll_release %p\n", coll); + kfree(coll); +} /* * Create a new header structure, translate header format from the on-disk @@ -590,6 +621,14 @@ static u64 rbd_get_segment(struct rbd_image_header *header, return len; } +static int rbd_get_num_segments(struct rbd_image_header *header, + u64 ofs, u64 len) +{ + u64 start_seg = ofs >> header->obj_order; + u64 end_seg = (ofs + len - 1) >> header->obj_order; + return end_seg - start_seg + 1; +} + /* * bio helpers */ @@ -735,6 +774,50 @@ static void rbd_destroy_ops(struct ceph_osd_req_op *ops) kfree(ops); } +static void rbd_coll_end_req_index(struct request *rq, + struct rbd_req_coll *coll, + int index, + int ret, u64 len) +{ + struct request_queue *q; + int min, max, i; + + dout("rbd_coll_end_req_index %p index %d ret %d len %lld\n", + coll, index, ret, len); + + if (!rq) + return; + + if (!coll) { + blk_end_request(rq, ret, len); + return; + } + + q = rq->q; + + spin_lock_irq(q->queue_lock); + coll->status[index].done = 1; + coll->status[index].rc = ret; + coll->status[index].bytes = len; + max = min = coll->num_done; + while (max < coll->total && coll->status[max].done) + max++; + + for (i = min; i<max; i++) { + __blk_end_request(rq, coll->status[i].rc, + coll->status[i].bytes); + coll->num_done++; + kref_put(&coll->kref, rbd_coll_release); + } + spin_unlock_irq(q->queue_lock); +} + +static void rbd_coll_end_req(struct rbd_request *req, + int ret, u64 len) +{ + rbd_coll_end_req_index(req->rq, req->coll, req->coll_index, ret, len); +} + /* * Send ceph osd request */ @@ -749,6 +832,8 @@ static int rbd_do_request(struct request *rq, int flags, struct ceph_osd_req_op *ops, int num_reply, + struct rbd_req_coll *coll, + int coll_index, void (*rbd_cb)(struct ceph_osd_request *req, struct ceph_msg *msg), struct ceph_osd_request **linger_req, @@ -763,12 +848,20 @@ static int rbd_do_request(struct request *rq, struct ceph_osd_request_head *reqhead; struct rbd_image_header *header = &dev->header; - ret = -ENOMEM; req_data = kzalloc(sizeof(*req_data), GFP_NOIO); - if (!req_data) - goto done; + if (!req_data) { + if (coll) + rbd_coll_end_req_index(rq, coll, coll_index, + -ENOMEM, len); + return -ENOMEM; + } - dout("rbd_do_request len=%lld ofs=%lld\n", len, ofs); + if (coll) { + req_data->coll = coll; + req_data->coll_index = coll_index; + } + + dout("rbd_do_request obj=%s ofs=%lld len=%lld\n", obj, len, ofs); down_read(&header->snap_rwsem); @@ -828,7 +921,8 @@ static int rbd_do_request(struct request *rq, ret = ceph_osdc_wait_request(&dev->client->osdc, req); if (ver) *ver = le64_to_cpu(req->r_reassert_version.version); - dout("reassert_ver=%lld\n", le64_to_cpu(req->r_reassert_version.version)); + dout("reassert_ver=%lld\n", + le64_to_cpu(req->r_reassert_version.version)); ceph_osdc_put_request(req); } return ret; @@ -837,10 +931,8 @@ done_err: bio_chain_put(req_data->bio); ceph_osdc_put_request(req); done_pages: + rbd_coll_end_req(req_data, ret, len); kfree(req_data); -done: - if (rq) - blk_end_request(rq, ret, len); return ret; } @@ -874,7 +966,7 @@ static void rbd_req_cb(struct ceph_osd_request *req, struct ceph_msg *msg) bytes = req_data->len; } - blk_end_request(req_data->rq, rc, bytes); + rbd_coll_end_req(req_data, rc, bytes); if (req_data->bio) bio_chain_put(req_data->bio); @@ -934,6 +1026,7 @@ static int rbd_req_sync_op(struct rbd_device *dev, flags, ops, 2, + NULL, 0, NULL, linger_req, ver); if (ret < 0) @@ -959,7 +1052,9 @@ static int rbd_do_op(struct request *rq, u64 snapid, int opcode, int flags, int num_reply, u64 ofs, u64 len, - struct bio *bio) + struct bio *bio, + struct rbd_req_coll *coll, + int coll_index) { char *seg_name; u64 seg_ofs; @@ -995,7 +1090,10 @@ static int rbd_do_op(struct request *rq, flags, ops, num_reply, + coll, coll_index, rbd_req_cb, 0, NULL); + + rbd_destroy_ops(ops); done: kfree(seg_name); return ret; @@ -1008,13 +1106,15 @@ static int rbd_req_write(struct request *rq, struct rbd_device *rbd_dev, struct ceph_snap_context *snapc, u64 ofs, u64 len, - struct bio *bio) + struct bio *bio, + struct rbd_req_coll *coll, + int coll_index) { return rbd_do_op(rq, rbd_dev, snapc, CEPH_NOSNAP, CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, 2, - ofs, len, bio); + ofs, len, bio, coll, coll_index); } /* @@ -1024,14 +1124,16 @@ static int rbd_req_read(struct request *rq, struct rbd_device *rbd_dev, u64 snapid, u64 ofs, u64 len, - struct bio *bio) + struct bio *bio, + struct rbd_req_coll *coll, + int coll_index) { return rbd_do_op(rq, rbd_dev, NULL, (snapid ? snapid : CEPH_NOSNAP), CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, 2, - ofs, len, bio); + ofs, len, bio, coll, coll_index); } /* @@ -1063,7 +1165,9 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev, { struct ceph_osd_req_op *ops; struct page **pages = NULL; - int ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_NOTIFY_ACK, 0); + int ret; + + ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_NOTIFY_ACK, 0); if (ret < 0) return ret; @@ -1077,6 +1181,7 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev, CEPH_OSD_FLAG_READ, ops, 1, + NULL, 0, rbd_simple_req_cb, 0, NULL); rbd_destroy_ops(ops); @@ -1274,6 +1379,20 @@ static int rbd_req_sync_exec(struct rbd_device *dev, return ret; } +static struct rbd_req_coll *rbd_alloc_coll(int num_reqs) +{ + struct rbd_req_coll *coll = + kzalloc(sizeof(struct rbd_req_coll) + + sizeof(struct rbd_req_status) * num_reqs, + GFP_ATOMIC); + + if (!coll) + return NULL; + coll->total = num_reqs; + kref_init(&coll->kref); + return coll; +} + /* * block device queue callback */ @@ -1291,6 +1410,8 @@ static void rbd_rq_fn(struct request_queue *q) bool do_write; int size, op_size = 0; u64 ofs; + int num_segs, cur_seg = 0; + struct rbd_req_coll *coll; /* peek at request from block layer */ if (!rq) @@ -1321,6 +1442,14 @@ static void rbd_rq_fn(struct request_queue *q) do_write ? "write" : "read", size, blk_rq_pos(rq) * 512ULL); + num_segs = rbd_get_num_segments(&rbd_dev->header, ofs, size); + coll = rbd_alloc_coll(num_segs); + if (!coll) { + spin_lock_irq(q->queue_lock); + __blk_end_request_all(rq, -ENOMEM); + goto next; + } + do { /* a bio clone to be passed down to OSD req */ dout("rq->bio->bi_vcnt=%d\n", rq->bio->bi_vcnt); @@ -1328,35 +1457,41 @@ static void rbd_rq_fn(struct request_queue *q) rbd_dev->header.block_name, ofs, size, NULL, NULL); + kref_get(&coll->kref); bio = bio_chain_clone(&rq_bio, &next_bio, &bp, op_size, GFP_ATOMIC); if (!bio) { - spin_lock_irq(q->queue_lock); - __blk_end_request_all(rq, -ENOMEM); - goto next; + rbd_coll_end_req_index(rq, coll, cur_seg, + -ENOMEM, op_size); + goto next_seg; } + /* init OSD command: write or read */ if (do_write) rbd_req_write(rq, rbd_dev, rbd_dev->header.snapc, ofs, - op_size, bio); + op_size, bio, + coll, cur_seg); else rbd_req_read(rq, rbd_dev, cur_snap_id(rbd_dev), ofs, - op_size, bio); + op_size, bio, + coll, cur_seg); +next_seg: size -= op_size; ofs += op_size; + cur_seg++; rq_bio = next_bio; } while (size > 0); + kref_put(&coll->kref, rbd_coll_release); if (bp) bio_pair_release(bp); - spin_lock_irq(q->queue_lock); next: rq = blk_fetch_request(q); diff --git a/drivers/block/swim.c b/drivers/block/swim.c index 24a482f2fbd6..fd5adcd55944 100644 --- a/drivers/block/swim.c +++ b/drivers/block/swim.c @@ -858,7 +858,6 @@ static int __devinit swim_floppy_init(struct swim_priv *swd) swd->unit[drive].disk->first_minor = drive; sprintf(swd->unit[drive].disk->disk_name, "fd%d", drive); swd->unit[drive].disk->fops = &floppy_fops; - swd->unit[drive].disk->events = DISK_EVENT_MEDIA_CHANGE; swd->unit[drive].disk->private_data = &swd->unit[drive]; swd->unit[drive].disk->queue = swd->queue; set_capacity(swd->unit[drive].disk, 2880); diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c index 4c10f56facbf..773bfa792777 100644 --- a/drivers/block/swim3.c +++ b/drivers/block/swim3.c @@ -1163,7 +1163,6 @@ static int __devinit swim3_attach(struct macio_dev *mdev, const struct of_device disk->major = FLOPPY_MAJOR; disk->first_minor = i; disk->fops = &floppy_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; disk->private_data = &floppy_states[i]; disk->queue = swim3_queue; disk->flags |= GENHD_FL_REMOVABLE; diff --git a/drivers/block/ub.c b/drivers/block/ub.c index 68b9430c7cfe..0e376d46bdd1 100644 --- a/drivers/block/ub.c +++ b/drivers/block/ub.c @@ -2334,7 +2334,6 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum) disk->major = UB_MAJOR; disk->first_minor = lun->id * UB_PARTS_PER_LUN; disk->fops = &ub_bd_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; disk->private_data = lun; disk->driverfs_dev = &sc->intf->dev; diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c index 645ff765cd12..6c7fd7db6dff 100644 --- a/drivers/block/xsysace.c +++ b/drivers/block/xsysace.c @@ -1005,7 +1005,6 @@ static int __devinit ace_setup(struct ace_device *ace) ace->gd->major = ace_major; ace->gd->first_minor = ace->id * ACE_NUM_MINORS; ace->gd->fops = &ace_fops; - ace->gd->events = DISK_EVENT_MEDIA_CHANGE; ace->gd->queue = ace->queue; ace->gd->private_data = ace; snprintf(ace->gd->disk_name, 32, "xs%c", ace->id + 'a'); diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 514dd8efaf73..75fb965b8f72 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -986,6 +986,9 @@ int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, fmode_t cdinfo(CD_OPEN, "entering cdrom_open\n"); + /* open is event synchronization point, check events first */ + check_disk_change(bdev); + /* if this was a O_NONBLOCK open and we should honor the flags, * do a quick open without drive/disc integrity checks. */ cdi->use_count++; @@ -1012,9 +1015,6 @@ int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, fmode_t cdinfo(CD_OPEN, "Use count for \"/dev/%s\" now %d\n", cdi->name, cdi->use_count); - /* Do this on open. Don't wait for mount, because they might - not be mounting, but opening with O_NONBLOCK */ - check_disk_change(bdev); return 0; err_release: if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) { diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c index b2b034fea34e..3ceaf006e7f0 100644 --- a/drivers/cdrom/gdrom.c +++ b/drivers/cdrom/gdrom.c @@ -803,7 +803,6 @@ static int __devinit probe_gdrom(struct platform_device *devptr) goto probe_fail_cdrom_register; } gd.disk->fops = &gdrom_bdops; - gd.disk->events = DISK_EVENT_MEDIA_CHANGE; /* latch on to the interrupt */ err = gdrom_set_interrupt_handlers(); if (err) diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c index 4e874c5fa605..e427fbe45999 100644 --- a/drivers/cdrom/viocd.c +++ b/drivers/cdrom/viocd.c @@ -626,7 +626,6 @@ static int viocd_probe(struct vio_dev *vdev, const struct vio_device_id *id) gendisk->queue = q; gendisk->fops = &viocd_fops; gendisk->flags = GENHD_FL_CD|GENHD_FL_REMOVABLE; - gendisk->events = DISK_EVENT_MEDIA_CHANGE; set_capacity(gendisk, 0); gendisk->private_data = d; d->viocd_disk = gendisk; diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c index 43ac61978d8b..ac6739e085e3 100644 --- a/drivers/char/hw_random/n2-drv.c +++ b/drivers/char/hw_random/n2-drv.c @@ -619,15 +619,18 @@ static void __devinit n2rng_driver_version(void) pr_info("%s", version); } +static const struct of_device_id n2rng_match[]; static int __devinit n2rng_probe(struct platform_device *op) { + const struct of_device_id *match; int victoria_falls; int err = -ENOMEM; struct n2rng *np; - if (!op->dev.of_match) + match = of_match_device(n2rng_match, &op->dev); + if (!match) return -EINVAL; - victoria_falls = (op->dev.of_match->data != NULL); + victoria_falls = (match->data != NULL); n2rng_driver_version(); np = kzalloc(sizeof(*np), GFP_KERNEL); diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index cc6c9b2546a3..64c6b8530615 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2554,9 +2554,11 @@ static struct pci_driver ipmi_pci_driver = { }; #endif /* CONFIG_PCI */ +static struct of_device_id ipmi_match[]; static int __devinit ipmi_probe(struct platform_device *dev) { #ifdef CONFIG_OF + const struct of_device_id *match; struct smi_info *info; struct resource resource; const __be32 *regsize, *regspacing, *regshift; @@ -2566,7 +2568,8 @@ static int __devinit ipmi_probe(struct platform_device *dev) dev_info(&dev->dev, "probing via device tree\n"); - if (!dev->dev.of_match) + match = of_match_device(ipmi_match, &dev->dev); + if (!match) return -EINVAL; ret = of_address_to_resource(np, 0, &resource); @@ -2601,7 +2604,7 @@ static int __devinit ipmi_probe(struct platform_device *dev) return -ENOMEM; } - info->si_type = (enum si_type) dev->dev.of_match->data; + info->si_type = (enum si_type) match->data; info->addr_source = SI_DEVICETREE; info->irq_setup = std_irq_setup; diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c index d6412c16385f..39ccdeada791 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c @@ -715,13 +715,13 @@ static int __devexit hwicap_remove(struct device *dev) } #ifdef CONFIG_OF -static int __devinit hwicap_of_probe(struct platform_device *op) +static int __devinit hwicap_of_probe(struct platform_device *op, + const struct hwicap_driver_config *config) { struct resource res; const unsigned int *id; const char *family; int rc; - const struct hwicap_driver_config *config = op->dev.of_match->data; const struct config_registers *regs; @@ -751,20 +751,24 @@ static int __devinit hwicap_of_probe(struct platform_device *op) regs); } #else -static inline int hwicap_of_probe(struct platform_device *op) +static inline int hwicap_of_probe(struct platform_device *op, + const struct hwicap_driver_config *config) { return -EINVAL; } #endif /* CONFIG_OF */ +static const struct of_device_id __devinitconst hwicap_of_match[]; static int __devinit hwicap_drv_probe(struct platform_device *pdev) { + const struct of_device_id *match; struct resource *res; const struct config_registers *regs; const char *family; - if (pdev->dev.of_match) - return hwicap_of_probe(pdev); + match = of_match_device(hwicap_of_match, &pdev->dev); + if (match) + return hwicap_of_probe(pdev, match->data); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) diff --git a/drivers/edac/ppc4xx_edac.c b/drivers/edac/ppc4xx_edac.c index c1f0045ceb8e..af8e7b1aa290 100644 --- a/drivers/edac/ppc4xx_edac.c +++ b/drivers/edac/ppc4xx_edac.c @@ -1019,7 +1019,7 @@ ppc4xx_edac_mc_init(struct mem_ctl_info *mci, struct ppc4xx_edac_pdata *pdata = NULL; const struct device_node *np = op->dev.of_node; - if (op->dev.of_match == NULL) + if (of_match_device(ppc4xx_edac_match, &op->dev) == NULL) return -EINVAL; /* Initial driver pointers and private data */ diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 11d7a72c22d9..140b9525b48a 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1516,17 +1516,33 @@ bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel) } EXPORT_SYMBOL(drm_fb_helper_initial_config); -bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) +/** + * drm_fb_helper_hotplug_event - respond to a hotplug notification by + * probing all the outputs attached to the fb. + * @fb_helper: the drm_fb_helper + * + * LOCKING: + * Called at runtime, must take mode config lock. + * + * Scan the connectors attached to the fb_helper and try to put together a + * setup after *notification of a change in output configuration. + * + * RETURNS: + * 0 on success and a non-zero error code otherwise. + */ +int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) { + struct drm_device *dev = fb_helper->dev; int count = 0; u32 max_width, max_height, bpp_sel; bool bound = false, crtcs_bound = false; struct drm_crtc *crtc; if (!fb_helper->fb) - return false; + return 0; - list_for_each_entry(crtc, &fb_helper->dev->mode_config.crtc_list, head) { + mutex_lock(&dev->mode_config.mutex); + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { if (crtc->fb) crtcs_bound = true; if (crtc->fb == fb_helper->fb) @@ -1535,7 +1551,8 @@ bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) if (!bound && crtcs_bound) { fb_helper->delayed_hotplug = true; - return false; + mutex_unlock(&dev->mode_config.mutex); + return 0; } DRM_DEBUG_KMS("\n"); @@ -1546,6 +1563,7 @@ bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) count = drm_fb_helper_probe_connector_modes(fb_helper, max_width, max_height); drm_setup_crtcs(fb_helper); + mutex_unlock(&dev->mode_config.mutex); return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); } diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index c34a8dd31d02..32d1b3e829c8 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -49,7 +49,7 @@ module_param_named(panel_ignore_lid, i915_panel_ignore_lid, int, 0600); unsigned int i915_powersave = 1; module_param_named(powersave, i915_powersave, int, 0600); -unsigned int i915_semaphores = 1; +unsigned int i915_semaphores = 0; module_param_named(semaphores, i915_semaphores, int, 0600); unsigned int i915_enable_rc6 = 0; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 373c2a005ec1..2166ee071ddb 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5154,6 +5154,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, I915_WRITE(DSPCNTR(plane), dspcntr); POSTING_READ(DSPCNTR(plane)); + if (!HAS_PCH_SPLIT(dev)) + intel_enable_plane(dev_priv, plane, pipe); ret = intel_pipe_set_base(crtc, x, y, old_fb); diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index c20eac3379e6..9073e3bfb08c 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1780,7 +1780,10 @@ static void evergreen_gpu_init(struct radeon_device *rdev) mc_shared_chmap = RREG32(MC_SHARED_CHMAP); - mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG); + if (rdev->flags & RADEON_IS_IGP) + mc_arb_ramcfg = RREG32(FUS_MC_ARB_RAMCFG); + else + mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG); switch (rdev->config.evergreen.max_tile_pipes) { case 1: diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 94533849927e..fc40e0cc3451 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -200,6 +200,7 @@ #define BURSTLENGTH_SHIFT 9 #define BURSTLENGTH_MASK 0x00000200 #define CHANSIZE_OVERRIDE (1 << 11) +#define FUS_MC_ARB_RAMCFG 0x2768 #define MC_VM_AGP_TOP 0x2028 #define MC_VM_AGP_BOT 0x202C #define MC_VM_AGP_BASE 0x2030 diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index dd881d035f09..90dfb2b8cf03 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1574,9 +1574,17 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct ATOM_FAKE_EDID_PATCH_RECORD *fake_edid_record; ATOM_PANEL_RESOLUTION_PATCH_RECORD *panel_res_record; bool bad_record = false; - u8 *record = (u8 *)(mode_info->atom_context->bios + - data_offset + - le16_to_cpu(lvds_info->info.usModePatchTableOffset)); + u8 *record; + + if ((frev == 1) && (crev < 2)) + /* absolute */ + record = (u8 *)(mode_info->atom_context->bios + + le16_to_cpu(lvds_info->info.usModePatchTableOffset)); + else + /* relative */ + record = (u8 *)(mode_info->atom_context->bios + + data_offset + + le16_to_cpu(lvds_info->info.usModePatchTableOffset)); while (*record != ATOM_RECORD_END_TYPE) { switch (*record) { case LCD_MODE_PATCH_RECORD_MODE_TYPE: diff --git a/drivers/gpu/drm/radeon/reg_srcs/cayman b/drivers/gpu/drm/radeon/reg_srcs/cayman index 6334f8ac1209..0aa8e85a9457 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/cayman +++ b/drivers/gpu/drm/radeon/reg_srcs/cayman @@ -33,6 +33,7 @@ cayman 0x9400 0x00008E48 SQ_EX_ALLOC_TABLE_SLOTS 0x00009100 SPI_CONFIG_CNTL 0x0000913C SPI_CONFIG_CNTL_1 +0x00009508 TA_CNTL_AUX 0x00009830 DB_DEBUG 0x00009834 DB_DEBUG2 0x00009838 DB_DEBUG3 diff --git a/drivers/gpu/drm/radeon/reg_srcs/evergreen b/drivers/gpu/drm/radeon/reg_srcs/evergreen index 7e1637176e08..0e28cae7ea43 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/evergreen +++ b/drivers/gpu/drm/radeon/reg_srcs/evergreen @@ -46,6 +46,7 @@ evergreen 0x9400 0x00008E48 SQ_EX_ALLOC_TABLE_SLOTS 0x00009100 SPI_CONFIG_CNTL 0x0000913C SPI_CONFIG_CNTL_1 +0x00009508 TA_CNTL_AUX 0x00009700 VC_CNTL 0x00009714 VC_ENHANCE 0x00009830 DB_DEBUG diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c index e01cacba685f..498b284e5ef9 100644 --- a/drivers/gpu/vga/vga_switcheroo.c +++ b/drivers/gpu/vga/vga_switcheroo.c @@ -219,9 +219,6 @@ static int vga_switchto_stage1(struct vga_switcheroo_client *new_client) int i; struct vga_switcheroo_client *active = NULL; - if (new_client->active == true) - return 0; - for (i = 0; i < VGA_SWITCHEROO_MAX_CLIENTS; i++) { if (vgasr_priv.clients[i].active == true) { active = &vgasr_priv.clients[i]; @@ -372,6 +369,9 @@ vga_switcheroo_debugfs_write(struct file *filp, const char __user *ubuf, goto out; } + if (client->active == true) + goto out; + /* okay we want a switch - test if devices are willing to switch */ can_switch = true; for (i = 0; i < VGA_SWITCHEROO_MAX_CLIENTS; i++) { diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index 75b984c519ac..107397a606b4 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -560,15 +560,18 @@ static struct i2c_adapter mpc_ops = { .timeout = HZ, }; +static const struct of_device_id mpc_i2c_of_match[]; static int __devinit fsl_i2c_probe(struct platform_device *op) { + const struct of_device_id *match; struct mpc_i2c *i2c; const u32 *prop; u32 clock = MPC_I2C_CLOCK_LEGACY; int result = 0; int plen; - if (!op->dev.of_match) + match = of_match_device(mpc_i2c_of_match, &op->dev); + if (!match) return -EINVAL; i2c = kzalloc(sizeof(*i2c), GFP_KERNEL); @@ -605,8 +608,8 @@ static int __devinit fsl_i2c_probe(struct platform_device *op) clock = *prop; } - if (op->dev.of_match->data) { - struct mpc_i2c_data *data = op->dev.of_match->data; + if (match->data) { + struct mpc_i2c_data *data = match->data; data->setup(op->dev.of_node, i2c, clock, data->prescaler); } else { /* Backwards compatibility */ diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c index a97e3fec8148..04be9f82e14b 100644 --- a/drivers/i2c/busses/i2c-pnx.c +++ b/drivers/i2c/busses/i2c-pnx.c @@ -65,7 +65,7 @@ static inline void i2c_pnx_arm_timer(struct i2c_pnx_algo_data *alg_data) jiffies, expires); timer->expires = jiffies + expires; - timer->data = (unsigned long)&alg_data; + timer->data = (unsigned long)alg_data; add_timer(timer); } diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index c24946f51256..1de1c19dad30 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -281,17 +281,24 @@ struct ser_req { u8 command; u8 ref_off; u16 scratch; - __be16 sample; struct spi_message msg; struct spi_transfer xfer[6]; + /* + * DMA (thus cache coherency maintenance) requires the + * transfer buffers to live in their own cache lines. + */ + __be16 sample ____cacheline_aligned; }; struct ads7845_ser_req { u8 command[3]; - u8 pwrdown[3]; - u8 sample[3]; struct spi_message msg; struct spi_transfer xfer[2]; + /* + * DMA (thus cache coherency maintenance) requires the + * transfer buffers to live in their own cache lines. + */ + u8 sample[3] ____cacheline_aligned; }; static int ads7846_read12_ser(struct device *dev, unsigned command) diff --git a/drivers/leds/leds-lm3530.c b/drivers/leds/leds-lm3530.c index e7089a1f6cb6..b37e6186d0fa 100644 --- a/drivers/leds/leds-lm3530.c +++ b/drivers/leds/leds-lm3530.c @@ -349,6 +349,7 @@ static const struct i2c_device_id lm3530_id[] = { {LM3530_NAME, 0}, {} }; +MODULE_DEVICE_TABLE(i2c, lm3530_id); static struct i2c_driver lm3530_i2c_driver = { .probe = lm3530_probe, diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c index c820e2f53527..3f442003623d 100644 --- a/drivers/media/video/cx88/cx88-input.c +++ b/drivers/media/video/cx88/cx88-input.c @@ -524,7 +524,7 @@ void cx88_ir_irq(struct cx88_core *core) for (todo = 32; todo > 0; todo -= bits) { ev.pulse = samples & 0x80000000 ? false : true; bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples)); - ev.duration = (bits * NSEC_PER_SEC) / (1000 * ir_samplerate); + ev.duration = (bits * (NSEC_PER_SEC / 1000)) / ir_samplerate; ir_raw_event_store_with_filter(ir->dev, &ev); samples <<= bits; } diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index 3973f9a94753..ddb4c091dedc 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -136,11 +136,50 @@ unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl, } EXPORT_SYMBOL(soc_camera_apply_sensor_flags); +#define pixfmtstr(x) (x) & 0xff, ((x) >> 8) & 0xff, ((x) >> 16) & 0xff, \ + ((x) >> 24) & 0xff + +static int soc_camera_try_fmt(struct soc_camera_device *icd, + struct v4l2_format *f) +{ + struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); + struct v4l2_pix_format *pix = &f->fmt.pix; + int ret; + + dev_dbg(&icd->dev, "TRY_FMT(%c%c%c%c, %ux%u)\n", + pixfmtstr(pix->pixelformat), pix->width, pix->height); + + pix->bytesperline = 0; + pix->sizeimage = 0; + + ret = ici->ops->try_fmt(icd, f); + if (ret < 0) + return ret; + + if (!pix->sizeimage) { + if (!pix->bytesperline) { + const struct soc_camera_format_xlate *xlate; + + xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat); + if (!xlate) + return -EINVAL; + + ret = soc_mbus_bytes_per_line(pix->width, + xlate->host_fmt); + if (ret > 0) + pix->bytesperline = ret; + } + if (pix->bytesperline) + pix->sizeimage = pix->bytesperline * pix->height; + } + + return 0; +} + static int soc_camera_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct soc_camera_device *icd = file->private_data; - struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); WARN_ON(priv != file->private_data); @@ -149,7 +188,7 @@ static int soc_camera_try_fmt_vid_cap(struct file *file, void *priv, return -EINVAL; /* limit format to hardware capabilities */ - return ici->ops->try_fmt(icd, f); + return soc_camera_try_fmt(icd, f); } static int soc_camera_enum_input(struct file *file, void *priv, @@ -362,9 +401,6 @@ static void soc_camera_free_user_formats(struct soc_camera_device *icd) icd->user_formats = NULL; } -#define pixfmtstr(x) (x) & 0xff, ((x) >> 8) & 0xff, ((x) >> 16) & 0xff, \ - ((x) >> 24) & 0xff - /* Called with .vb_lock held, or from the first open(2), see comment there */ static int soc_camera_set_fmt(struct soc_camera_device *icd, struct v4l2_format *f) @@ -377,7 +413,7 @@ static int soc_camera_set_fmt(struct soc_camera_device *icd, pixfmtstr(pix->pixelformat), pix->width, pix->height); /* We always call try_fmt() before set_fmt() or set_crop() */ - ret = ici->ops->try_fmt(icd, f); + ret = soc_camera_try_fmt(icd, f); if (ret < 0) return ret; diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c index 5aeaf876ba9b..4aae501f02d0 100644 --- a/drivers/media/video/v4l2-device.c +++ b/drivers/media/video/v4l2-device.c @@ -155,8 +155,10 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev, sd->v4l2_dev = v4l2_dev; if (sd->internal_ops && sd->internal_ops->registered) { err = sd->internal_ops->registered(sd); - if (err) + if (err) { + module_put(sd->owner); return err; + } } /* This just returns 0 if either of the two args is NULL */ @@ -164,6 +166,7 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev, if (err) { if (sd->internal_ops && sd->internal_ops->unregistered) sd->internal_ops->unregistered(sd); + module_put(sd->owner); return err; } diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c index 0b8064490676..812729ebf09e 100644 --- a/drivers/media/video/v4l2-subdev.c +++ b/drivers/media/video/v4l2-subdev.c @@ -155,25 +155,25 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) switch (cmd) { case VIDIOC_QUERYCTRL: - return v4l2_subdev_queryctrl(sd, arg); + return v4l2_queryctrl(sd->ctrl_handler, arg); case VIDIOC_QUERYMENU: - return v4l2_subdev_querymenu(sd, arg); + return v4l2_querymenu(sd->ctrl_handler, arg); case VIDIOC_G_CTRL: - return v4l2_subdev_g_ctrl(sd, arg); + return v4l2_g_ctrl(sd->ctrl_handler, arg); case VIDIOC_S_CTRL: - return v4l2_subdev_s_ctrl(sd, arg); + return v4l2_s_ctrl(sd->ctrl_handler, arg); case VIDIOC_G_EXT_CTRLS: - return v4l2_subdev_g_ext_ctrls(sd, arg); + return v4l2_g_ext_ctrls(sd->ctrl_handler, arg); case VIDIOC_S_EXT_CTRLS: - return v4l2_subdev_s_ext_ctrls(sd, arg); + return v4l2_s_ext_ctrls(sd->ctrl_handler, arg); case VIDIOC_TRY_EXT_CTRLS: - return v4l2_subdev_try_ext_ctrls(sd, arg); + return v4l2_try_ext_ctrls(sd->ctrl_handler, arg); case VIDIOC_DQEVENT: if (!(sd->flags & V4L2_SUBDEV_FL_HAS_EVENTS)) diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c index 643ad52e3ca2..4796bbf0ae4e 100644 --- a/drivers/message/i2o/i2o_block.c +++ b/drivers/message/i2o/i2o_block.c @@ -1000,7 +1000,6 @@ static struct i2o_block_device *i2o_block_device_alloc(void) gd->major = I2O_MAJOR; gd->queue = queue; gd->fops = &i2o_block_fops; - gd->events = DISK_EVENT_MEDIA_CHANGE; gd->private_data = dev; dev->gd = gd; diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 2b200c1cfbba..461e6a17fb90 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -94,7 +94,7 @@ static void mmc_host_clk_gate_delayed(struct mmc_host *host) spin_unlock_irqrestore(&host->clk_lock, flags); return; } - mmc_claim_host(host); + mutex_lock(&host->clk_gate_mutex); spin_lock_irqsave(&host->clk_lock, flags); if (!host->clk_requests) { spin_unlock_irqrestore(&host->clk_lock, flags); @@ -104,7 +104,7 @@ static void mmc_host_clk_gate_delayed(struct mmc_host *host) pr_debug("%s: gated MCI clock\n", mmc_hostname(host)); } spin_unlock_irqrestore(&host->clk_lock, flags); - mmc_release_host(host); + mutex_unlock(&host->clk_gate_mutex); } /* @@ -130,7 +130,7 @@ void mmc_host_clk_ungate(struct mmc_host *host) { unsigned long flags; - mmc_claim_host(host); + mutex_lock(&host->clk_gate_mutex); spin_lock_irqsave(&host->clk_lock, flags); if (host->clk_gated) { spin_unlock_irqrestore(&host->clk_lock, flags); @@ -140,7 +140,7 @@ void mmc_host_clk_ungate(struct mmc_host *host) } host->clk_requests++; spin_unlock_irqrestore(&host->clk_lock, flags); - mmc_release_host(host); + mutex_unlock(&host->clk_gate_mutex); } /** @@ -215,6 +215,7 @@ static inline void mmc_host_clk_init(struct mmc_host *host) host->clk_gated = false; INIT_WORK(&host->clk_gate_work, mmc_host_clk_gate_work); spin_lock_init(&host->clk_lock); + mutex_init(&host->clk_gate_mutex); } /** diff --git a/drivers/mmc/host/sdhci-of-core.c b/drivers/mmc/host/sdhci-of-core.c index f9b611fc773e..60e4186a4345 100644 --- a/drivers/mmc/host/sdhci-of-core.c +++ b/drivers/mmc/host/sdhci-of-core.c @@ -124,8 +124,10 @@ static bool __devinit sdhci_of_wp_inverted(struct device_node *np) #endif } +static const struct of_device_id sdhci_of_match[]; static int __devinit sdhci_of_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct device_node *np = ofdev->dev.of_node; struct sdhci_of_data *sdhci_of_data; struct sdhci_host *host; @@ -134,9 +136,10 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev) int size; int ret; - if (!ofdev->dev.of_match) + match = of_match_device(sdhci_of_match, &ofdev->dev); + if (!match) return -EINVAL; - sdhci_of_data = ofdev->dev.of_match->data; + sdhci_of_data = match->data; if (!of_device_is_available(np)) return -ENODEV; diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index bd483f0c57e1..c1d33464aee8 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -214,11 +214,13 @@ static void __devinit of_free_probes(const char **probes) } #endif +static struct of_device_id of_flash_match[]; static int __devinit of_flash_probe(struct platform_device *dev) { #ifdef CONFIG_MTD_PARTITIONS const char **part_probe_types; #endif + const struct of_device_id *match; struct device_node *dp = dev->dev.of_node; struct resource res; struct of_flash *info; @@ -232,9 +234,10 @@ static int __devinit of_flash_probe(struct platform_device *dev) struct mtd_info **mtd_list = NULL; resource_size_t res_size; - if (!dev->dev.of_match) + match = of_match_device(of_flash_match, &dev->dev); + if (!match) return -EINVAL; - probe_type = dev->dev.of_match->data; + probe_type = match->data; reg_tuple_size = (of_n_addr_cells(dp) + of_n_size_cells(dp)) * sizeof(u32); diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 01b604ad155e..e5a7375685ad 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -144,7 +144,7 @@ obj-$(CONFIG_NE3210) += ne3210.o 8390.o obj-$(CONFIG_SB1250_MAC) += sb1250-mac.o obj-$(CONFIG_B44) += b44.o obj-$(CONFIG_FORCEDETH) += forcedeth.o -obj-$(CONFIG_NE_H8300) += ne-h8300.o 8390.o +obj-$(CONFIG_NE_H8300) += ne-h8300.o obj-$(CONFIG_AX88796) += ax88796.o obj-$(CONFIG_BCM63XX_ENET) += bcm63xx_enet.o obj-$(CONFIG_FTMAC100) += ftmac100.o @@ -219,7 +219,7 @@ obj-$(CONFIG_SC92031) += sc92031.o obj-$(CONFIG_LP486E) += lp486e.o obj-$(CONFIG_ETH16I) += eth16i.o -obj-$(CONFIG_ZORRO8390) += zorro8390.o 8390.o +obj-$(CONFIG_ZORRO8390) += zorro8390.o obj-$(CONFIG_HPLANCE) += hplance.o 7990.o obj-$(CONFIG_MVME147_NET) += mvme147.o 7990.o obj-$(CONFIG_EQUALIZER) += eql.o @@ -231,7 +231,7 @@ obj-$(CONFIG_SGI_IOC3_ETH) += ioc3-eth.o obj-$(CONFIG_DECLANCE) += declance.o obj-$(CONFIG_ATARILANCE) += atarilance.o obj-$(CONFIG_A2065) += a2065.o -obj-$(CONFIG_HYDRA) += hydra.o 8390.o +obj-$(CONFIG_HYDRA) += hydra.o obj-$(CONFIG_ARIADNE) += ariadne.o obj-$(CONFIG_CS89x0) += cs89x0.o obj-$(CONFIG_MACSONIC) += macsonic.o diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h index b28baff70864..01b8a6af275b 100644 --- a/drivers/net/bonding/bond_3ad.h +++ b/drivers/net/bonding/bond_3ad.h @@ -39,7 +39,7 @@ typedef struct mac_addr { u8 mac_addr_value[ETH_ALEN]; -} mac_addr_t; +} __packed mac_addr_t; enum { BOND_AD_STABLE = 0, @@ -134,12 +134,12 @@ typedef struct lacpdu { u8 tlv_type_terminator; // = terminator u8 terminator_length; // = 0 u8 reserved_50[50]; // = 0 -} lacpdu_t; +} __packed lacpdu_t; typedef struct lacpdu_header { struct ethhdr hdr; struct lacpdu lacpdu; -} lacpdu_header_t; +} __packed lacpdu_header_t; // Marker Protocol Data Unit(PDU) structure(43.5.3.2 in the 802.3ad standard) typedef struct bond_marker { @@ -155,12 +155,12 @@ typedef struct bond_marker { u8 tlv_type_terminator; // = 0x00 u8 terminator_length; // = 0x00 u8 reserved_90[90]; // = 0 -} bond_marker_t; +} __packed bond_marker_t; typedef struct bond_marker_header { struct ethhdr hdr; struct bond_marker marker; -} bond_marker_header_t; +} __packed bond_marker_header_t; #pragma pack() diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c index bd1d811c204f..5fedc3375562 100644 --- a/drivers/net/can/mscan/mpc5xxx_can.c +++ b/drivers/net/can/mscan/mpc5xxx_can.c @@ -247,8 +247,10 @@ static u32 __devinit mpc512x_can_get_clock(struct platform_device *ofdev, } #endif /* CONFIG_PPC_MPC512x */ +static struct of_device_id mpc5xxx_can_table[]; static int __devinit mpc5xxx_can_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct mpc5xxx_can_data *data; struct device_node *np = ofdev->dev.of_node; struct net_device *dev; @@ -258,9 +260,10 @@ static int __devinit mpc5xxx_can_probe(struct platform_device *ofdev) int irq, mscan_clksrc = 0; int err = -ENOMEM; - if (!ofdev->dev.of_match) + match = of_match_device(mpc5xxx_can_table, &ofdev->dev); + if (!match) return -EINVAL; - data = (struct mpc5xxx_can_data *)ofdev->dev.of_match->data; + data = match->data; base = of_iomap(np, 0); if (!base) { diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index 53c0f04b1b23..cf79cf759e13 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -2688,9 +2688,6 @@ static int ehea_open(struct net_device *dev) netif_start_queue(dev); } - init_waitqueue_head(&port->swqe_avail_wq); - init_waitqueue_head(&port->restart_wq); - mutex_unlock(&port->port_lock); return ret; @@ -3276,6 +3273,9 @@ struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, INIT_WORK(&port->reset_task, ehea_reset_port); + init_waitqueue_head(&port->swqe_avail_wq); + init_waitqueue_head(&port->restart_wq); + ret = register_netdev(dev); if (ret) { pr_err("register_netdev failed. ret=%d\n", ret); diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c index 24cb953900dd..5131e61c358c 100644 --- a/drivers/net/fs_enet/fs_enet-main.c +++ b/drivers/net/fs_enet/fs_enet-main.c @@ -998,8 +998,10 @@ static const struct net_device_ops fs_enet_netdev_ops = { #endif }; +static struct of_device_id fs_enet_match[]; static int __devinit fs_enet_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct net_device *ndev; struct fs_enet_private *fep; struct fs_platform_info *fpi; @@ -1007,14 +1009,15 @@ static int __devinit fs_enet_probe(struct platform_device *ofdev) const u8 *mac_addr; int privsize, len, ret = -ENODEV; - if (!ofdev->dev.of_match) + match = of_match_device(fs_enet_match, &ofdev->dev); + if (!match) return -EINVAL; fpi = kzalloc(sizeof(*fpi), GFP_KERNEL); if (!fpi) return -ENOMEM; - if (!IS_FEC(ofdev->dev.of_match)) { + if (!IS_FEC(match)) { data = of_get_property(ofdev->dev.of_node, "fsl,cpm-command", &len); if (!data || len != 4) goto out_free_fpi; @@ -1049,7 +1052,7 @@ static int __devinit fs_enet_probe(struct platform_device *ofdev) fep->dev = &ofdev->dev; fep->ndev = ndev; fep->fpi = fpi; - fep->ops = ofdev->dev.of_match->data; + fep->ops = match->data; ret = fep->ops->setup_data(ndev); if (ret) diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c index 7e840d373ab3..6a2e150e75bb 100644 --- a/drivers/net/fs_enet/mii-fec.c +++ b/drivers/net/fs_enet/mii-fec.c @@ -101,17 +101,20 @@ static int fs_enet_fec_mii_reset(struct mii_bus *bus) return 0; } +static struct of_device_id fs_enet_mdio_fec_match[]; static int __devinit fs_enet_mdio_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct resource res; struct mii_bus *new_bus; struct fec_info *fec; int (*get_bus_freq)(struct device_node *); int ret = -ENOMEM, clock, speed; - if (!ofdev->dev.of_match) + match = of_match_device(fs_enet_mdio_fec_match, &ofdev->dev); + if (!match) return -EINVAL; - get_bus_freq = ofdev->dev.of_match->data; + get_bus_freq = match->data; new_bus = mdiobus_alloc(); if (!new_bus) diff --git a/drivers/net/hydra.c b/drivers/net/hydra.c index c5ef62ceb840..1cd481c04202 100644 --- a/drivers/net/hydra.c +++ b/drivers/net/hydra.c @@ -98,15 +98,15 @@ static const struct net_device_ops hydra_netdev_ops = { .ndo_open = hydra_open, .ndo_stop = hydra_close, - .ndo_start_xmit = ei_start_xmit, - .ndo_tx_timeout = ei_tx_timeout, - .ndo_get_stats = ei_get_stats, - .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, + .ndo_set_mac_address = eth_mac_addr, .ndo_change_mtu = eth_change_mtu, #ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ei_poll, + .ndo_poll_controller = __ei_poll, #endif }; @@ -125,7 +125,7 @@ static int __devinit hydra_init(struct zorro_dev *z) 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e, }; - dev = alloc_ei_netdev(); + dev = ____alloc_ei_netdev(0); if (!dev) return -ENOMEM; diff --git a/drivers/net/ne-h8300.c b/drivers/net/ne-h8300.c index 30be8c634ebd..7298a34bc795 100644 --- a/drivers/net/ne-h8300.c +++ b/drivers/net/ne-h8300.c @@ -167,7 +167,7 @@ static void cleanup_card(struct net_device *dev) #ifndef MODULE struct net_device * __init ne_probe(int unit) { - struct net_device *dev = alloc_ei_netdev(); + struct net_device *dev = ____alloc_ei_netdev(0); int err; if (!dev) @@ -197,15 +197,15 @@ static const struct net_device_ops ne_netdev_ops = { .ndo_open = ne_open, .ndo_stop = ne_close, - .ndo_start_xmit = ei_start_xmit, - .ndo_tx_timeout = ei_tx_timeout, - .ndo_get_stats = ei_get_stats, - .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, + .ndo_set_mac_address = eth_mac_addr, .ndo_change_mtu = eth_change_mtu, #ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ei_poll, + .ndo_poll_controller = __ei_poll, #endif }; @@ -637,7 +637,7 @@ int init_module(void) int err; for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { - struct net_device *dev = alloc_ei_netdev(); + struct net_device *dev = ____alloc_ei_netdev(0); if (!dev) break; if (io[this_dev]) { diff --git a/drivers/net/sfc/mcdi.c b/drivers/net/sfc/mcdi.c index d98479030ef2..3dd45ed61f0a 100644 --- a/drivers/net/sfc/mcdi.c +++ b/drivers/net/sfc/mcdi.c @@ -50,6 +50,20 @@ static inline struct efx_mcdi_iface *efx_mcdi(struct efx_nic *efx) return &nic_data->mcdi; } +static inline void +efx_mcdi_readd(struct efx_nic *efx, efx_dword_t *value, unsigned reg) +{ + struct siena_nic_data *nic_data = efx->nic_data; + value->u32[0] = (__force __le32)__raw_readl(nic_data->mcdi_smem + reg); +} + +static inline void +efx_mcdi_writed(struct efx_nic *efx, const efx_dword_t *value, unsigned reg) +{ + struct siena_nic_data *nic_data = efx->nic_data; + __raw_writel((__force u32)value->u32[0], nic_data->mcdi_smem + reg); +} + void efx_mcdi_init(struct efx_nic *efx) { struct efx_mcdi_iface *mcdi; @@ -70,8 +84,8 @@ static void efx_mcdi_copyin(struct efx_nic *efx, unsigned cmd, const u8 *inbuf, size_t inlen) { struct efx_mcdi_iface *mcdi = efx_mcdi(efx); - unsigned pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); - unsigned doorbell = FR_CZ_MC_TREG_SMEM + MCDI_DOORBELL(efx); + unsigned pdu = MCDI_PDU(efx); + unsigned doorbell = MCDI_DOORBELL(efx); unsigned int i; efx_dword_t hdr; u32 xflags, seqno; @@ -92,30 +106,28 @@ static void efx_mcdi_copyin(struct efx_nic *efx, unsigned cmd, MCDI_HEADER_SEQ, seqno, MCDI_HEADER_XFLAGS, xflags); - efx_writed(efx, &hdr, pdu); + efx_mcdi_writed(efx, &hdr, pdu); - for (i = 0; i < inlen; i += 4) { - _efx_writed(efx, *((__le32 *)(inbuf + i)), pdu + 4 + i); - /* use wmb() within loop to inhibit write combining */ - wmb(); - } + for (i = 0; i < inlen; i += 4) + efx_mcdi_writed(efx, (const efx_dword_t *)(inbuf + i), + pdu + 4 + i); /* ring the doorbell with a distinctive value */ - _efx_writed(efx, (__force __le32) 0x45789abc, doorbell); - wmb(); + EFX_POPULATE_DWORD_1(hdr, EFX_DWORD_0, 0x45789abc); + efx_mcdi_writed(efx, &hdr, doorbell); } static void efx_mcdi_copyout(struct efx_nic *efx, u8 *outbuf, size_t outlen) { struct efx_mcdi_iface *mcdi = efx_mcdi(efx); - unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); + unsigned int pdu = MCDI_PDU(efx); int i; BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT); BUG_ON(outlen & 3 || outlen >= 0x100); for (i = 0; i < outlen; i += 4) - *((__le32 *)(outbuf + i)) = _efx_readd(efx, pdu + 4 + i); + efx_mcdi_readd(efx, (efx_dword_t *)(outbuf + i), pdu + 4 + i); } static int efx_mcdi_poll(struct efx_nic *efx) @@ -123,7 +135,7 @@ static int efx_mcdi_poll(struct efx_nic *efx) struct efx_mcdi_iface *mcdi = efx_mcdi(efx); unsigned int time, finish; unsigned int respseq, respcmd, error; - unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); + unsigned int pdu = MCDI_PDU(efx); unsigned int rc, spins; efx_dword_t reg; @@ -149,8 +161,7 @@ static int efx_mcdi_poll(struct efx_nic *efx) time = get_seconds(); - rmb(); - efx_readd(efx, ®, pdu); + efx_mcdi_readd(efx, ®, pdu); /* All 1's indicates that shared memory is in reset (and is * not a valid header). Wait for it to come out reset before @@ -177,7 +188,7 @@ static int efx_mcdi_poll(struct efx_nic *efx) respseq, mcdi->seqno); rc = EIO; } else if (error) { - efx_readd(efx, ®, pdu + 4); + efx_mcdi_readd(efx, ®, pdu + 4); switch (EFX_DWORD_FIELD(reg, EFX_DWORD_0)) { #define TRANSLATE_ERROR(name) \ case MC_CMD_ERR_ ## name: \ @@ -211,21 +222,21 @@ out: /* Test and clear MC-rebooted flag for this port/function */ int efx_mcdi_poll_reboot(struct efx_nic *efx) { - unsigned int addr = FR_CZ_MC_TREG_SMEM + MCDI_REBOOT_FLAG(efx); + unsigned int addr = MCDI_REBOOT_FLAG(efx); efx_dword_t reg; uint32_t value; if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) return false; - efx_readd(efx, ®, addr); + efx_mcdi_readd(efx, ®, addr); value = EFX_DWORD_FIELD(reg, EFX_DWORD_0); if (value == 0) return 0; EFX_ZERO_DWORD(reg); - efx_writed(efx, ®, addr); + efx_mcdi_writed(efx, ®, addr); if (value == MC_STATUS_DWORD_ASSERT) return -EINTR; diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c index 10f1cb79c147..9b29a8d7c449 100644 --- a/drivers/net/sfc/nic.c +++ b/drivers/net/sfc/nic.c @@ -1937,6 +1937,13 @@ void efx_nic_get_regs(struct efx_nic *efx, void *buf) size = min_t(size_t, table->step, 16); + if (table->offset >= efx->type->mem_map_size) { + /* No longer mapped; return dummy data */ + memcpy(buf, "\xde\xc0\xad\xde", 4); + buf += table->rows * size; + continue; + } + for (i = 0; i < table->rows; i++) { switch (table->step) { case 4: /* 32-bit register or SRAM */ diff --git a/drivers/net/sfc/nic.h b/drivers/net/sfc/nic.h index a42db6e35be3..d91701abd331 100644 --- a/drivers/net/sfc/nic.h +++ b/drivers/net/sfc/nic.h @@ -143,10 +143,12 @@ static inline struct falcon_board *falcon_board(struct efx_nic *efx) /** * struct siena_nic_data - Siena NIC state * @mcdi: Management-Controller-to-Driver Interface + * @mcdi_smem: MCDI shared memory mapping. The mapping is always uncacheable. * @wol_filter_id: Wake-on-LAN packet filter id */ struct siena_nic_data { struct efx_mcdi_iface mcdi; + void __iomem *mcdi_smem; int wol_filter_id; }; diff --git a/drivers/net/sfc/siena.c b/drivers/net/sfc/siena.c index e4dd8986b1fe..837869b71db9 100644 --- a/drivers/net/sfc/siena.c +++ b/drivers/net/sfc/siena.c @@ -220,12 +220,26 @@ static int siena_probe_nic(struct efx_nic *efx) efx_reado(efx, ®, FR_AZ_CS_DEBUG); efx->net_dev->dev_id = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1; + /* Initialise MCDI */ + nic_data->mcdi_smem = ioremap_nocache(efx->membase_phys + + FR_CZ_MC_TREG_SMEM, + FR_CZ_MC_TREG_SMEM_STEP * + FR_CZ_MC_TREG_SMEM_ROWS); + if (!nic_data->mcdi_smem) { + netif_err(efx, probe, efx->net_dev, + "could not map MCDI at %llx+%x\n", + (unsigned long long)efx->membase_phys + + FR_CZ_MC_TREG_SMEM, + FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS); + rc = -ENOMEM; + goto fail1; + } efx_mcdi_init(efx); /* Recover from a failed assertion before probing */ rc = efx_mcdi_handle_assertion(efx); if (rc) - goto fail1; + goto fail2; /* Let the BMC know that the driver is now in charge of link and * filter settings. We must do this before we reset the NIC */ @@ -280,6 +294,7 @@ fail4: fail3: efx_mcdi_drv_attach(efx, false, NULL); fail2: + iounmap(nic_data->mcdi_smem); fail1: kfree(efx->nic_data); return rc; @@ -359,6 +374,8 @@ static int siena_init_nic(struct efx_nic *efx) static void siena_remove_nic(struct efx_nic *efx) { + struct siena_nic_data *nic_data = efx->nic_data; + efx_nic_free_buffer(efx, &efx->irq_status); siena_reset_hw(efx, RESET_TYPE_ALL); @@ -368,7 +385,8 @@ static void siena_remove_nic(struct efx_nic *efx) efx_mcdi_drv_attach(efx, false, NULL); /* Tear down the private nic state */ - kfree(efx->nic_data); + iounmap(nic_data->mcdi_smem); + kfree(nic_data); efx->nic_data = NULL; } @@ -606,8 +624,7 @@ struct efx_nic_type siena_a0_nic_type = { .default_mac_ops = &efx_mcdi_mac_operations, .revision = EFX_REV_SIENA_A0, - .mem_map_size = (FR_CZ_MC_TREG_SMEM + - FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS), + .mem_map_size = FR_CZ_MC_TREG_SMEM, /* MC_TREG_SMEM mapped separately */ .txd_ptr_tbl_base = FR_BZ_TX_DESC_PTR_TBL, .rxd_ptr_tbl_base = FR_BZ_RX_DESC_PTR_TBL, .buf_tbl_base = FR_BZ_BUF_FULL_TBL, diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c index eb4f59fb01e9..bff2f7999ff0 100644 --- a/drivers/net/sunhme.c +++ b/drivers/net/sunhme.c @@ -3237,15 +3237,18 @@ static void happy_meal_pci_exit(void) #endif #ifdef CONFIG_SBUS +static const struct of_device_id hme_sbus_match[]; static int __devinit hme_sbus_probe(struct platform_device *op) { + const struct of_device_id *match; struct device_node *dp = op->dev.of_node; const char *model = of_get_property(dp, "model", NULL); int is_qfe; - if (!op->dev.of_match) + match = of_match_device(hme_sbus_match, &op->dev); + if (!match) return -EINVAL; - is_qfe = (op->dev.of_match->data != NULL); + is_qfe = (match->data != NULL); if (!is_qfe && model && !strcmp(model, "SUNW,sbus-qfe")) is_qfe = 1; diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c index 51f2ef142a5b..976467253d20 100644 --- a/drivers/net/vmxnet3/vmxnet3_ethtool.c +++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c @@ -311,6 +311,9 @@ vmxnet3_set_flags(struct net_device *netdev, u32 data) /* toggle the LRO feature*/ netdev->features ^= NETIF_F_LRO; + /* Update private LRO flag */ + adapter->lro = lro_requested; + /* update harware LRO capability accordingly */ if (lro_requested) adapter->shared->devRead.misc.uptFeatures |= diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 17d04ff8d678..1482fa650833 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2141,6 +2141,8 @@ static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) static void ath9k_flush(struct ieee80211_hw *hw, bool drop) { struct ath_softc *sc = hw->priv; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); int timeout = 200; /* ms */ int i, j; @@ -2149,6 +2151,12 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop) cancel_delayed_work_sync(&sc->tx_complete_work); + if (sc->sc_flags & SC_OP_INVALID) { + ath_dbg(common, ATH_DBG_ANY, "Device not present\n"); + mutex_unlock(&sc->mutex); + return; + } + if (drop) timeout = 1; diff --git a/drivers/net/wireless/iwlegacy/iwl-core.c b/drivers/net/wireless/iwlegacy/iwl-core.c index c1511b14b239..42db0fc8b921 100644 --- a/drivers/net/wireless/iwlegacy/iwl-core.c +++ b/drivers/net/wireless/iwlegacy/iwl-core.c @@ -2155,6 +2155,13 @@ int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed) goto set_ch_out; } + if (priv->iw_mode == NL80211_IFTYPE_ADHOC && + !iwl_legacy_is_channel_ibss(ch_info)) { + IWL_DEBUG_MAC80211(priv, "leave - not IBSS channel\n"); + ret = -EINVAL; + goto set_ch_out; + } + spin_lock_irqsave(&priv->lock, flags); for_each_context(priv, ctx) { diff --git a/drivers/net/wireless/iwlegacy/iwl-dev.h b/drivers/net/wireless/iwlegacy/iwl-dev.h index 9ee849d669f3..f43ac1eb9014 100644 --- a/drivers/net/wireless/iwlegacy/iwl-dev.h +++ b/drivers/net/wireless/iwlegacy/iwl-dev.h @@ -1411,6 +1411,12 @@ iwl_legacy_is_channel_passive(const struct iwl_channel_info *ch) return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; } +static inline int +iwl_legacy_is_channel_ibss(const struct iwl_channel_info *ch) +{ + return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0; +} + static inline void __iwl_legacy_free_pages(struct iwl_priv *priv, struct page *page) { diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c index 7e8a658b7670..f3ac62431a30 100644 --- a/drivers/net/wireless/libertas/cmd.c +++ b/drivers/net/wireless/libertas/cmd.c @@ -1339,8 +1339,8 @@ int lbs_execute_next_command(struct lbs_private *priv) cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) { lbs_deb_host( "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n"); - list_del(&cmdnode->list); spin_lock_irqsave(&priv->driver_lock, flags); + list_del(&cmdnode->list); lbs_complete_command(priv, cmdnode, 0); spin_unlock_irqrestore(&priv->driver_lock, flags); @@ -1352,8 +1352,8 @@ int lbs_execute_next_command(struct lbs_private *priv) (priv->psstate == PS_STATE_PRE_SLEEP)) { lbs_deb_host( "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n"); - list_del(&cmdnode->list); spin_lock_irqsave(&priv->driver_lock, flags); + list_del(&cmdnode->list); lbs_complete_command(priv, cmdnode, 0); spin_unlock_irqrestore(&priv->driver_lock, flags); priv->needtowakeup = 1; @@ -1366,7 +1366,9 @@ int lbs_execute_next_command(struct lbs_private *priv) "EXEC_NEXT_CMD: sending EXIT_PS\n"); } } + spin_lock_irqsave(&priv->driver_lock, flags); list_del(&cmdnode->list); + spin_unlock_irqrestore(&priv->driver_lock, flags); lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n", le16_to_cpu(cmd->command)); lbs_submit_command(priv, cmdnode); diff --git a/drivers/net/zorro8390.c b/drivers/net/zorro8390.c index b78a38d9172a..8c7c522a056a 100644 --- a/drivers/net/zorro8390.c +++ b/drivers/net/zorro8390.c @@ -126,7 +126,7 @@ static int __devinit zorro8390_init_one(struct zorro_dev *z, board = z->resource.start; ioaddr = board+cards[i].offset; - dev = alloc_ei_netdev(); + dev = ____alloc_ei_netdev(0); if (!dev) return -ENOMEM; if (!request_mem_region(ioaddr, NE_IO_EXTENT*2, DRV_NAME)) { @@ -146,15 +146,15 @@ static int __devinit zorro8390_init_one(struct zorro_dev *z, static const struct net_device_ops zorro8390_netdev_ops = { .ndo_open = zorro8390_open, .ndo_stop = zorro8390_close, - .ndo_start_xmit = ei_start_xmit, - .ndo_tx_timeout = ei_tx_timeout, - .ndo_get_stats = ei_get_stats, - .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, .ndo_change_mtu = eth_change_mtu, #ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ei_poll, + .ndo_poll_controller = __ei_poll, #endif }; diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index ebf51ad1b714..a806cb321d2e 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -579,7 +579,7 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size, } size0 = calculate_iosize(size, min_size, size1, resource_size(b_res), 4096); - size1 = !add_size? size0: + size1 = (!add_head || (add_head && !add_size)) ? size0 : calculate_iosize(size, min_size+add_size, size1, resource_size(b_res), 4096); if (!size0 && !size1) { @@ -677,7 +677,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, align += aligns[order]; } size0 = calculate_memsize(size, min_size, 0, resource_size(b_res), min_align); - size1 = !add_size ? size : + size1 = (!add_head || (add_head && !add_size)) ? size0 : calculate_memsize(size, min_size+add_size, 0, resource_size(b_res), min_align); if (!size0 && !size1) { diff --git a/drivers/rapidio/switches/idt_gen2.c b/drivers/rapidio/switches/idt_gen2.c index ac2701b22e71..043ee3136e40 100644 --- a/drivers/rapidio/switches/idt_gen2.c +++ b/drivers/rapidio/switches/idt_gen2.c @@ -95,6 +95,9 @@ idtg2_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, else table++; + if (route_port == RIO_INVALID_ROUTE) + route_port = IDT_DEFAULT_ROUTE; + rio_mport_write_config_32(mport, destid, hopcount, LOCAL_RTE_CONF_DESTID_SEL, table); @@ -411,6 +414,12 @@ static int idtg2_switch_init(struct rio_dev *rdev, int do_enum) rdev->rswitch->em_handle = idtg2_em_handler; rdev->rswitch->sw_sysfs = idtg2_sysfs; + if (do_enum) { + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, + RIO_STD_RTE_DEFAULT_PORT, IDT_NO_ROUTE); + } + return 0; } diff --git a/drivers/rapidio/switches/idtcps.c b/drivers/rapidio/switches/idtcps.c index 3a971077e7bf..d06ee2d44b44 100644 --- a/drivers/rapidio/switches/idtcps.c +++ b/drivers/rapidio/switches/idtcps.c @@ -26,6 +26,9 @@ idtcps_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, { u32 result; + if (route_port == RIO_INVALID_ROUTE) + route_port = CPS_DEFAULT_ROUTE; + if (table == RIO_GLOBAL_TABLE) { rio_mport_write_config_32(mport, destid, hopcount, RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid); @@ -130,6 +133,9 @@ static int idtcps_switch_init(struct rio_dev *rdev, int do_enum) /* set TVAL = ~50us */ rio_write_config_32(rdev, rdev->phys_efptr + RIO_PORT_LINKTO_CTL_CSR, 0x8e << 8); + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, + RIO_STD_RTE_DEFAULT_PORT, CPS_NO_ROUTE); } return 0; diff --git a/drivers/rapidio/switches/tsi57x.c b/drivers/rapidio/switches/tsi57x.c index 1a62934bfebc..db8b8028988d 100644 --- a/drivers/rapidio/switches/tsi57x.c +++ b/drivers/rapidio/switches/tsi57x.c @@ -303,6 +303,12 @@ static int tsi57x_switch_init(struct rio_dev *rdev, int do_enum) rdev->rswitch->em_init = tsi57x_em_init; rdev->rswitch->em_handle = tsi57x_em_handler; + if (do_enum) { + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, RIO_STD_RTE_DEFAULT_PORT, + RIO_INVALID_ROUTE); + } + return 0; } diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index 8d46838dff8a..755e1fe914af 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -524,6 +524,8 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) goto fail2; } + platform_set_drvdata(pdev, davinci_rtc); + davinci_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, &davinci_rtc_ops, THIS_MODULE); if (IS_ERR(davinci_rtc->rtc)) { @@ -553,8 +555,6 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) rtcss_write(davinci_rtc, PRTCSS_RTC_CCTRL_CAEN, PRTCSS_RTC_CCTRL); - platform_set_drvdata(pdev, davinci_rtc); - device_init_wakeup(&pdev->dev, 0); return 0; @@ -562,6 +562,7 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) fail4: rtc_device_unregister(davinci_rtc->rtc); fail3: + platform_set_drvdata(pdev, NULL); iounmap(davinci_rtc->base); fail2: release_mem_region(davinci_rtc->pbase, davinci_rtc->base_size); diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c index 60ce69600828..47e681df31e2 100644 --- a/drivers/rtc/rtc-ds1286.c +++ b/drivers/rtc/rtc-ds1286.c @@ -355,6 +355,7 @@ static int __devinit ds1286_probe(struct platform_device *pdev) goto out; } spin_lock_init(&priv->lock); + platform_set_drvdata(pdev, priv); rtc = rtc_device_register("ds1286", &pdev->dev, &ds1286_ops, THIS_MODULE); if (IS_ERR(rtc)) { @@ -362,7 +363,6 @@ static int __devinit ds1286_probe(struct platform_device *pdev) goto out; } priv->rtc = rtc; - platform_set_drvdata(pdev, priv); return 0; out: diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c index 11ae64dcbf3c..335551d333b2 100644 --- a/drivers/rtc/rtc-ep93xx.c +++ b/drivers/rtc/rtc-ep93xx.c @@ -151,6 +151,7 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev) return -ENXIO; pdev->dev.platform_data = ep93xx_rtc; + platform_set_drvdata(pdev, rtc); rtc = rtc_device_register(pdev->name, &pdev->dev, &ep93xx_rtc_ops, THIS_MODULE); @@ -159,8 +160,6 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev) goto exit; } - platform_set_drvdata(pdev, rtc); - err = sysfs_create_group(&pdev->dev.kobj, &ep93xx_rtc_sysfs_files); if (err) goto fail; @@ -168,9 +167,9 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev) return 0; fail: - platform_set_drvdata(pdev, NULL); rtc_device_unregister(rtc); exit: + platform_set_drvdata(pdev, NULL); pdev->dev.platform_data = NULL; return err; } diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c index 69fe664a2228..eda128fc1d38 100644 --- a/drivers/rtc/rtc-m41t80.c +++ b/drivers/rtc/rtc-m41t80.c @@ -783,6 +783,9 @@ static int m41t80_probe(struct i2c_client *client, goto exit; } + clientdata->features = id->driver_data; + i2c_set_clientdata(client, clientdata); + rtc = rtc_device_register(client->name, &client->dev, &m41t80_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) { @@ -792,8 +795,6 @@ static int m41t80_probe(struct i2c_client *client, } clientdata->rtc = rtc; - clientdata->features = id->driver_data; - i2c_set_clientdata(client, clientdata); /* Make sure HT (Halt Update) bit is cleared */ rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_HOUR); diff --git a/drivers/rtc/rtc-max8925.c b/drivers/rtc/rtc-max8925.c index 20494b5edc3c..3bc046f427e0 100644 --- a/drivers/rtc/rtc-max8925.c +++ b/drivers/rtc/rtc-max8925.c @@ -258,6 +258,8 @@ static int __devinit max8925_rtc_probe(struct platform_device *pdev) } dev_set_drvdata(&pdev->dev, info); + /* XXX - isn't this redundant? */ + platform_set_drvdata(pdev, info); info->rtc_dev = rtc_device_register("max8925-rtc", &pdev->dev, &max8925_rtc_ops, THIS_MODULE); @@ -267,10 +269,9 @@ static int __devinit max8925_rtc_probe(struct platform_device *pdev) goto out_rtc; } - platform_set_drvdata(pdev, info); - return 0; out_rtc: + platform_set_drvdata(pdev, NULL); free_irq(chip->irq_base + MAX8925_IRQ_RTC_ALARM0, info); out_irq: kfree(info); diff --git a/drivers/rtc/rtc-max8998.c b/drivers/rtc/rtc-max8998.c index 3f7bc6b9fefa..2e48aa604273 100644 --- a/drivers/rtc/rtc-max8998.c +++ b/drivers/rtc/rtc-max8998.c @@ -265,6 +265,8 @@ static int __devinit max8998_rtc_probe(struct platform_device *pdev) info->rtc = max8998->rtc; info->irq = max8998->irq_base + MAX8998_IRQ_ALARM0; + platform_set_drvdata(pdev, info); + info->rtc_dev = rtc_device_register("max8998-rtc", &pdev->dev, &max8998_rtc_ops, THIS_MODULE); @@ -274,8 +276,6 @@ static int __devinit max8998_rtc_probe(struct platform_device *pdev) goto out_rtc; } - platform_set_drvdata(pdev, info); - ret = request_threaded_irq(info->irq, NULL, max8998_rtc_alarm_irq, 0, "rtc-alarm0", info); @@ -293,6 +293,7 @@ static int __devinit max8998_rtc_probe(struct platform_device *pdev) return 0; out_rtc: + platform_set_drvdata(pdev, NULL); kfree(info); return ret; } diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c index c5ac03793e79..a1a278bc340d 100644 --- a/drivers/rtc/rtc-mc13xxx.c +++ b/drivers/rtc/rtc-mc13xxx.c @@ -349,11 +349,15 @@ static int __devinit mc13xxx_rtc_probe(struct platform_device *pdev) if (ret) goto err_alarm_irq_request; + mc13xxx_unlock(mc13xxx); + priv->rtc = rtc_device_register(pdev->name, &pdev->dev, &mc13xxx_rtc_ops, THIS_MODULE); if (IS_ERR(priv->rtc)) { ret = PTR_ERR(priv->rtc); + mc13xxx_lock(mc13xxx); + mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_TODA, priv); err_alarm_irq_request: @@ -365,12 +369,12 @@ err_reset_irq_status: mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_RTCRST, priv); err_reset_irq_request: + mc13xxx_unlock(mc13xxx); + platform_set_drvdata(pdev, NULL); kfree(priv); } - mc13xxx_unlock(mc13xxx); - return ret; } diff --git a/drivers/rtc/rtc-msm6242.c b/drivers/rtc/rtc-msm6242.c index 67820626e18f..fcb113c11122 100644 --- a/drivers/rtc/rtc-msm6242.c +++ b/drivers/rtc/rtc-msm6242.c @@ -214,6 +214,7 @@ static int __init msm6242_rtc_probe(struct platform_device *dev) error = -ENOMEM; goto out_free_priv; } + platform_set_drvdata(dev, priv); rtc = rtc_device_register("rtc-msm6242", &dev->dev, &msm6242_rtc_ops, THIS_MODULE); @@ -223,10 +224,10 @@ static int __init msm6242_rtc_probe(struct platform_device *dev) } priv->rtc = rtc; - platform_set_drvdata(dev, priv); return 0; out_unmap: + platform_set_drvdata(dev, NULL); iounmap(priv->regs); out_free_priv: kfree(priv); diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c index 826ab64a8fa9..d814417bee8c 100644 --- a/drivers/rtc/rtc-mxc.c +++ b/drivers/rtc/rtc-mxc.c @@ -418,14 +418,6 @@ static int __init mxc_rtc_probe(struct platform_device *pdev) goto exit_put_clk; } - rtc = rtc_device_register(pdev->name, &pdev->dev, &mxc_rtc_ops, - THIS_MODULE); - if (IS_ERR(rtc)) { - ret = PTR_ERR(rtc); - goto exit_put_clk; - } - - pdata->rtc = rtc; platform_set_drvdata(pdev, pdata); /* Configure and enable the RTC */ @@ -438,8 +430,19 @@ static int __init mxc_rtc_probe(struct platform_device *pdev) pdata->irq = -1; } + rtc = rtc_device_register(pdev->name, &pdev->dev, &mxc_rtc_ops, + THIS_MODULE); + if (IS_ERR(rtc)) { + ret = PTR_ERR(rtc); + goto exit_clr_drvdata; + } + + pdata->rtc = rtc; + return 0; +exit_clr_drvdata: + platform_set_drvdata(pdev, NULL); exit_put_clk: clk_disable(pdata->clk); clk_put(pdata->clk); diff --git a/drivers/rtc/rtc-pcap.c b/drivers/rtc/rtc-pcap.c index a633abc42896..cd4f198cc2ef 100644 --- a/drivers/rtc/rtc-pcap.c +++ b/drivers/rtc/rtc-pcap.c @@ -151,6 +151,8 @@ static int __devinit pcap_rtc_probe(struct platform_device *pdev) pcap_rtc->pcap = dev_get_drvdata(pdev->dev.parent); + platform_set_drvdata(pdev, pcap_rtc); + pcap_rtc->rtc = rtc_device_register("pcap", &pdev->dev, &pcap_rtc_ops, THIS_MODULE); if (IS_ERR(pcap_rtc->rtc)) { @@ -158,7 +160,6 @@ static int __devinit pcap_rtc_probe(struct platform_device *pdev) goto fail_rtc; } - platform_set_drvdata(pdev, pcap_rtc); timer_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_1HZ); alarm_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_TODA); @@ -177,6 +178,7 @@ fail_alarm: fail_timer: rtc_device_unregister(pcap_rtc->rtc); fail_rtc: + platform_set_drvdata(pdev, NULL); kfree(pcap_rtc); return err; } diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c index 694da39b6dd2..359da6d020b9 100644 --- a/drivers/rtc/rtc-rp5c01.c +++ b/drivers/rtc/rtc-rp5c01.c @@ -249,15 +249,15 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) spin_lock_init(&priv->lock); + platform_set_drvdata(dev, priv); + rtc = rtc_device_register("rtc-rp5c01", &dev->dev, &rp5c01_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) { error = PTR_ERR(rtc); goto out_unmap; } - priv->rtc = rtc; - platform_set_drvdata(dev, priv); error = sysfs_create_bin_file(&dev->dev.kobj, &priv->nvram_attr); if (error) @@ -268,6 +268,7 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) out_unregister: rtc_device_unregister(rtc); out_unmap: + platform_set_drvdata(dev, NULL); iounmap(priv->regs); out_free_priv: kfree(priv); diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c index 83cea9a55e2f..1b3924c2fffd 100644 --- a/drivers/s390/char/tape_block.c +++ b/drivers/s390/char/tape_block.c @@ -236,7 +236,6 @@ tapeblock_setup_device(struct tape_device * device) disk->major = tapeblock_major; disk->first_minor = device->first_minor; disk->fops = &tapeblock_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; disk->private_data = tape_get_device(device); disk->queue = blkdat->request_queue; set_capacity(disk, 0); diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c index e2d45c91b8e8..9689d41c7888 100644 --- a/drivers/scsi/qlogicpti.c +++ b/drivers/scsi/qlogicpti.c @@ -1292,8 +1292,10 @@ static struct scsi_host_template qpti_template = { .use_clustering = ENABLE_CLUSTERING, }; +static const struct of_device_id qpti_match[]; static int __devinit qpti_sbus_probe(struct platform_device *op) { + const struct of_device_id *match; struct scsi_host_template *tpnt; struct device_node *dp = op->dev.of_node; struct Scsi_Host *host; @@ -1301,9 +1303,10 @@ static int __devinit qpti_sbus_probe(struct platform_device *op) static int nqptis; const char *fcode; - if (!op->dev.of_match) + match = of_match_device(qpti_match, &op->dev); + if (!match) return -EINVAL; - tpnt = op->dev.of_match->data; + tpnt = match->data; /* Sometimes Antares cards come up not completely * setup, and we get a report of a zero IRQ. diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 0bac91e72370..ec1803a48723 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -74,8 +74,6 @@ struct kmem_cache *scsi_sdb_cache; */ #define SCSI_QUEUE_DELAY 3 -static void scsi_run_queue(struct request_queue *q); - /* * Function: scsi_unprep_request() * @@ -161,7 +159,7 @@ static int __scsi_queue_insert(struct scsi_cmnd *cmd, int reason, int unbusy) blk_requeue_request(q, cmd->request); spin_unlock_irqrestore(q->queue_lock, flags); - scsi_run_queue(q); + kblockd_schedule_work(q, &device->requeue_work); return 0; } @@ -438,7 +436,11 @@ static void scsi_run_queue(struct request_queue *q) continue; } - blk_run_queue_async(sdev->request_queue); + spin_unlock(shost->host_lock); + spin_lock(sdev->request_queue->queue_lock); + __blk_run_queue(sdev->request_queue); + spin_unlock(sdev->request_queue->queue_lock); + spin_lock(shost->host_lock); } /* put any unprocessed entries back */ list_splice(&starved_list, &shost->starved_list); @@ -447,6 +449,16 @@ static void scsi_run_queue(struct request_queue *q) blk_run_queue(q); } +void scsi_requeue_run_queue(struct work_struct *work) +{ + struct scsi_device *sdev; + struct request_queue *q; + + sdev = container_of(work, struct scsi_device, requeue_work); + q = sdev->request_queue; + scsi_run_queue(q); +} + /* * Function: scsi_requeue_command() * diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 087821fac8fe..58584dc0724a 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -242,6 +242,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, int display_failure_msg = 1, ret; struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); extern void scsi_evt_thread(struct work_struct *work); + extern void scsi_requeue_run_queue(struct work_struct *work); sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size, GFP_ATOMIC); @@ -264,6 +265,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, INIT_LIST_HEAD(&sdev->event_list); spin_lock_init(&sdev->list_lock); INIT_WORK(&sdev->event_work, scsi_evt_thread); + INIT_WORK(&sdev->requeue_work, scsi_requeue_run_queue); sdev->sdev_gendev.parent = get_device(&starget->dev); sdev->sdev_target = starget; diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c index 0e8eec516df4..c911b2419abb 100644 --- a/drivers/tty/serial/of_serial.c +++ b/drivers/tty/serial/of_serial.c @@ -80,14 +80,17 @@ static int __devinit of_platform_serial_setup(struct platform_device *ofdev, /* * Try to register a serial port */ +static struct of_device_id of_platform_serial_table[]; static int __devinit of_platform_serial_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct of_serial_info *info; struct uart_port port; int port_type; int ret; - if (!ofdev->dev.of_match) + match = of_match_device(of_platform_serial_table, &ofdev->dev); + if (!match) return -EINVAL; if (of_find_property(ofdev->dev.of_node, "used-by-rtas", NULL)) @@ -97,7 +100,7 @@ static int __devinit of_platform_serial_probe(struct platform_device *ofdev) if (info == NULL) return -ENOMEM; - port_type = (unsigned long)ofdev->dev.of_match->data; + port_type = (unsigned long)match->data; ret = of_platform_serial_setup(ofdev, port_type, &port); if (ret) goto out; diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index 36613b37c504..3a68e09309f7 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -2539,15 +2539,18 @@ static void qe_udc_release(struct device *dev) } /* Driver probe functions */ +static const struct of_device_id qe_udc_match[]; static int __devinit qe_udc_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct device_node *np = ofdev->dev.of_node; struct qe_ep *ep; unsigned int ret = 0; unsigned int i; const void *prop; - if (!ofdev->dev.of_match) + match = of_match_device(qe_udc_match, &ofdev->dev); + if (!match) return -EINVAL; prop = of_get_property(np, "mode", NULL); @@ -2561,7 +2564,7 @@ static int __devinit qe_udc_probe(struct platform_device *ofdev) return -ENOMEM; } - udc_controller->soc_type = (unsigned long)ofdev->dev.of_match->data; + udc_controller->soc_type = (unsigned long)match->data; udc_controller->usb_regs = of_iomap(np, 0); if (!udc_controller->usb_regs) { ret = -ENOMEM; diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index e0c2284924b6..5aac00eb1830 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -42,9 +42,34 @@ #define FBPIXMAPSIZE (1024 * 8) +static DEFINE_MUTEX(registration_lock); struct fb_info *registered_fb[FB_MAX] __read_mostly; int num_registered_fb __read_mostly; +static struct fb_info *get_fb_info(unsigned int idx) +{ + struct fb_info *fb_info; + + if (idx >= FB_MAX) + return ERR_PTR(-ENODEV); + + mutex_lock(®istration_lock); + fb_info = registered_fb[idx]; + if (fb_info) + atomic_inc(&fb_info->count); + mutex_unlock(®istration_lock); + + return fb_info; +} + +static void put_fb_info(struct fb_info *fb_info) +{ + if (!atomic_dec_and_test(&fb_info->count)) + return; + if (fb_info->fbops->fb_destroy) + fb_info->fbops->fb_destroy(fb_info); +} + int lock_fb_info(struct fb_info *info) { mutex_lock(&info->lock); @@ -647,6 +672,7 @@ int fb_show_logo(struct fb_info *info, int rotate) { return 0; } static void *fb_seq_start(struct seq_file *m, loff_t *pos) { + mutex_lock(®istration_lock); return (*pos < FB_MAX) ? pos : NULL; } @@ -658,6 +684,7 @@ static void *fb_seq_next(struct seq_file *m, void *v, loff_t *pos) static void fb_seq_stop(struct seq_file *m, void *v) { + mutex_unlock(®istration_lock); } static int fb_seq_show(struct seq_file *m, void *v) @@ -690,13 +717,30 @@ static const struct file_operations fb_proc_fops = { .release = seq_release, }; -static ssize_t -fb_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) +/* + * We hold a reference to the fb_info in file->private_data, + * but if the current registered fb has changed, we don't + * actually want to use it. + * + * So look up the fb_info using the inode minor number, + * and just verify it against the reference we have. + */ +static struct fb_info *file_fb_info(struct file *file) { - unsigned long p = *ppos; struct inode *inode = file->f_path.dentry->d_inode; int fbidx = iminor(inode); struct fb_info *info = registered_fb[fbidx]; + + if (info != file->private_data) + info = NULL; + return info; +} + +static ssize_t +fb_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) +{ + unsigned long p = *ppos; + struct fb_info *info = file_fb_info(file); u8 *buffer, *dst; u8 __iomem *src; int c, cnt = 0, err = 0; @@ -761,9 +805,7 @@ static ssize_t fb_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { unsigned long p = *ppos; - struct inode *inode = file->f_path.dentry->d_inode; - int fbidx = iminor(inode); - struct fb_info *info = registered_fb[fbidx]; + struct fb_info *info = file_fb_info(file); u8 *buffer, *src; u8 __iomem *dst; int c, cnt = 0, err = 0; @@ -1141,10 +1183,10 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd, static long fb_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct inode *inode = file->f_path.dentry->d_inode; - int fbidx = iminor(inode); - struct fb_info *info = registered_fb[fbidx]; + struct fb_info *info = file_fb_info(file); + if (!info) + return -ENODEV; return do_fb_ioctl(info, cmd, arg); } @@ -1265,12 +1307,13 @@ static int fb_get_fscreeninfo(struct fb_info *info, unsigned int cmd, static long fb_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct inode *inode = file->f_path.dentry->d_inode; - int fbidx = iminor(inode); - struct fb_info *info = registered_fb[fbidx]; - struct fb_ops *fb = info->fbops; + struct fb_info *info = file_fb_info(file); + struct fb_ops *fb; long ret = -ENOIOCTLCMD; + if (!info) + return -ENODEV; + fb = info->fbops; switch(cmd) { case FBIOGET_VSCREENINFO: case FBIOPUT_VSCREENINFO: @@ -1303,16 +1346,18 @@ static long fb_compat_ioctl(struct file *file, unsigned int cmd, static int fb_mmap(struct file *file, struct vm_area_struct * vma) { - int fbidx = iminor(file->f_path.dentry->d_inode); - struct fb_info *info = registered_fb[fbidx]; - struct fb_ops *fb = info->fbops; + struct fb_info *info = file_fb_info(file); + struct fb_ops *fb; unsigned long off; unsigned long start; u32 len; + if (!info) + return -ENODEV; if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) return -EINVAL; off = vma->vm_pgoff << PAGE_SHIFT; + fb = info->fbops; if (!fb) return -ENODEV; mutex_lock(&info->mm_lock); @@ -1361,14 +1406,16 @@ __releases(&info->lock) struct fb_info *info; int res = 0; - if (fbidx >= FB_MAX) - return -ENODEV; - info = registered_fb[fbidx]; - if (!info) + info = get_fb_info(fbidx); + if (!info) { request_module("fb%d", fbidx); - info = registered_fb[fbidx]; - if (!info) - return -ENODEV; + info = get_fb_info(fbidx); + if (!info) + return -ENODEV; + } + if (IS_ERR(info)) + return PTR_ERR(info); + mutex_lock(&info->lock); if (!try_module_get(info->fbops->owner)) { res = -ENODEV; @@ -1386,6 +1433,8 @@ __releases(&info->lock) #endif out: mutex_unlock(&info->lock); + if (res) + put_fb_info(info); return res; } @@ -1401,6 +1450,7 @@ __releases(&info->lock) info->fbops->fb_release(info,1); module_put(info->fbops->owner); mutex_unlock(&info->lock); + put_fb_info(info); return 0; } @@ -1487,8 +1537,10 @@ static bool fb_do_apertures_overlap(struct apertures_struct *gena, return false; } +static int do_unregister_framebuffer(struct fb_info *fb_info); + #define VGA_FB_PHYS 0xA0000 -void remove_conflicting_framebuffers(struct apertures_struct *a, +static void do_remove_conflicting_framebuffers(struct apertures_struct *a, const char *name, bool primary) { int i; @@ -1510,43 +1562,32 @@ void remove_conflicting_framebuffers(struct apertures_struct *a, printk(KERN_INFO "fb: conflicting fb hw usage " "%s vs %s - removing generic driver\n", name, registered_fb[i]->fix.id); - unregister_framebuffer(registered_fb[i]); + do_unregister_framebuffer(registered_fb[i]); } } } -EXPORT_SYMBOL(remove_conflicting_framebuffers); -/** - * register_framebuffer - registers a frame buffer device - * @fb_info: frame buffer info structure - * - * Registers a frame buffer device @fb_info. - * - * Returns negative errno on error, or zero for success. - * - */ - -int -register_framebuffer(struct fb_info *fb_info) +static int do_register_framebuffer(struct fb_info *fb_info) { int i; struct fb_event event; struct fb_videomode mode; - if (num_registered_fb == FB_MAX) - return -ENXIO; - if (fb_check_foreignness(fb_info)) return -ENOSYS; - remove_conflicting_framebuffers(fb_info->apertures, fb_info->fix.id, + do_remove_conflicting_framebuffers(fb_info->apertures, fb_info->fix.id, fb_is_primary_device(fb_info)); + if (num_registered_fb == FB_MAX) + return -ENXIO; + num_registered_fb++; for (i = 0 ; i < FB_MAX; i++) if (!registered_fb[i]) break; fb_info->node = i; + atomic_set(&fb_info->count, 1); mutex_init(&fb_info->lock); mutex_init(&fb_info->mm_lock); @@ -1592,36 +1633,14 @@ register_framebuffer(struct fb_info *fb_info) return 0; } - -/** - * unregister_framebuffer - releases a frame buffer device - * @fb_info: frame buffer info structure - * - * Unregisters a frame buffer device @fb_info. - * - * Returns negative errno on error, or zero for success. - * - * This function will also notify the framebuffer console - * to release the driver. - * - * This is meant to be called within a driver's module_exit() - * function. If this is called outside module_exit(), ensure - * that the driver implements fb_open() and fb_release() to - * check that no processes are using the device. - */ - -int -unregister_framebuffer(struct fb_info *fb_info) +static int do_unregister_framebuffer(struct fb_info *fb_info) { struct fb_event event; int i, ret = 0; i = fb_info->node; - if (!registered_fb[i]) { - ret = -EINVAL; - goto done; - } - + if (i < 0 || i >= FB_MAX || registered_fb[i] != fb_info) + return -EINVAL; if (!lock_fb_info(fb_info)) return -ENODEV; @@ -1629,16 +1648,14 @@ unregister_framebuffer(struct fb_info *fb_info) ret = fb_notifier_call_chain(FB_EVENT_FB_UNBIND, &event); unlock_fb_info(fb_info); - if (ret) { - ret = -EINVAL; - goto done; - } + if (ret) + return -EINVAL; if (fb_info->pixmap.addr && (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT)) kfree(fb_info->pixmap.addr); fb_destroy_modelist(&fb_info->modelist); - registered_fb[i]=NULL; + registered_fb[i] = NULL; num_registered_fb--; fb_cleanup_device(fb_info); device_destroy(fb_class, MKDEV(FB_MAJOR, i)); @@ -1646,9 +1663,65 @@ unregister_framebuffer(struct fb_info *fb_info) fb_notifier_call_chain(FB_EVENT_FB_UNREGISTERED, &event); /* this may free fb info */ - if (fb_info->fbops->fb_destroy) - fb_info->fbops->fb_destroy(fb_info); -done: + put_fb_info(fb_info); + return 0; +} + +void remove_conflicting_framebuffers(struct apertures_struct *a, + const char *name, bool primary) +{ + mutex_lock(®istration_lock); + do_remove_conflicting_framebuffers(a, name, primary); + mutex_unlock(®istration_lock); +} +EXPORT_SYMBOL(remove_conflicting_framebuffers); + +/** + * register_framebuffer - registers a frame buffer device + * @fb_info: frame buffer info structure + * + * Registers a frame buffer device @fb_info. + * + * Returns negative errno on error, or zero for success. + * + */ +int +register_framebuffer(struct fb_info *fb_info) +{ + int ret; + + mutex_lock(®istration_lock); + ret = do_register_framebuffer(fb_info); + mutex_unlock(®istration_lock); + + return ret; +} + +/** + * unregister_framebuffer - releases a frame buffer device + * @fb_info: frame buffer info structure + * + * Unregisters a frame buffer device @fb_info. + * + * Returns negative errno on error, or zero for success. + * + * This function will also notify the framebuffer console + * to release the driver. + * + * This is meant to be called within a driver's module_exit() + * function. If this is called outside module_exit(), ensure + * that the driver implements fb_open() and fb_release() to + * check that no processes are using the device. + */ +int +unregister_framebuffer(struct fb_info *fb_info) +{ + int ret; + + mutex_lock(®istration_lock); + ret = do_unregister_framebuffer(fb_info); + mutex_unlock(®istration_lock); + return ret; } diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c index 528bceb220fd..eed5436ffb51 100644 --- a/drivers/watchdog/mpc8xxx_wdt.c +++ b/drivers/watchdog/mpc8xxx_wdt.c @@ -185,17 +185,20 @@ static struct miscdevice mpc8xxx_wdt_miscdev = { .fops = &mpc8xxx_wdt_fops, }; +static const struct of_device_id mpc8xxx_wdt_match[]; static int __devinit mpc8xxx_wdt_probe(struct platform_device *ofdev) { int ret; + const struct of_device_id *match; struct device_node *np = ofdev->dev.of_node; struct mpc8xxx_wdt_type *wdt_type; u32 freq = fsl_get_sys_freq(); bool enabled; - if (!ofdev->dev.of_match) + match = of_match_device(mpc8xxx_wdt_match, &ofdev->dev); + if (!match) return -EINVAL; - wdt_type = ofdev->dev.of_match->data; + wdt_type = match->data; if (!freq || freq == -1) return -EINVAL; diff --git a/fs/block_dev.c b/fs/block_dev.c index 5147bdd3b8e1..257b00e98428 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1102,6 +1102,7 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) if (!bdev->bd_part) goto out_clear; + ret = 0; if (disk->fops->open) { ret = disk->fops->open(bdev, mode); if (ret == -ERESTARTSYS) { @@ -1118,9 +1119,18 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) put_disk(disk); goto restart; } - if (ret) - goto out_clear; } + /* + * If the device is invalidated, rescan partition + * if open succeeded or failed with -ENOMEDIUM. + * The latter is necessary to prevent ghost + * partitions on a removed medium. + */ + if (bdev->bd_invalidated && (!ret || ret == -ENOMEDIUM)) + rescan_partitions(disk, bdev); + if (ret) + goto out_clear; + if (!bdev->bd_openers) { bd_set_size(bdev,(loff_t)get_capacity(disk)<<9); bdi = blk_get_backing_dev_info(bdev); @@ -1128,8 +1138,6 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) bdi = &default_backing_dev_info; bdev_inode_switch_bdi(bdev->bd_inode, bdi); } - if (bdev->bd_invalidated) - rescan_partitions(disk, bdev); } else { struct block_device *whole; whole = bdget_disk(disk, 0); @@ -1153,13 +1161,14 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) } } else { if (bdev->bd_contains == bdev) { - if (bdev->bd_disk->fops->open) { + ret = 0; + if (bdev->bd_disk->fops->open) ret = bdev->bd_disk->fops->open(bdev, mode); - if (ret) - goto out_unlock_bdev; - } - if (bdev->bd_invalidated) + /* the same as first opener case, read comment there */ + if (bdev->bd_invalidated && (!ret || ret == -ENOMEDIUM)) rescan_partitions(bdev->bd_disk, bdev); + if (ret) + goto out_unlock_bdev; } /* only one opener holds refs to the module and disk */ module_put(disk->fops->owner); diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 5d505aaa72fb..44ea5b92e1ba 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -178,12 +178,13 @@ static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name, if (value) { acl = posix_acl_from_xattr(value, size); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl) { ret = posix_acl_valid(acl); if (ret) goto out; - } else if (IS_ERR(acl)) { - return PTR_ERR(acl); } } diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index cd52f7f556ef..9ee6bd55e16c 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -8856,23 +8856,38 @@ out: int btrfs_init_space_info(struct btrfs_fs_info *fs_info) { struct btrfs_space_info *space_info; + struct btrfs_super_block *disk_super; + u64 features; + u64 flags; + int mixed = 0; int ret; - ret = update_space_info(fs_info, BTRFS_BLOCK_GROUP_SYSTEM, 0, 0, - &space_info); - if (ret) - return ret; + disk_super = &fs_info->super_copy; + if (!btrfs_super_root(disk_super)) + return 1; - ret = update_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA, 0, 0, - &space_info); - if (ret) - return ret; + features = btrfs_super_incompat_flags(disk_super); + if (features & BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS) + mixed = 1; - ret = update_space_info(fs_info, BTRFS_BLOCK_GROUP_DATA, 0, 0, - &space_info); + flags = BTRFS_BLOCK_GROUP_SYSTEM; + ret = update_space_info(fs_info, flags, 0, 0, &space_info); if (ret) - return ret; + goto out; + if (mixed) { + flags = BTRFS_BLOCK_GROUP_METADATA | BTRFS_BLOCK_GROUP_DATA; + ret = update_space_info(fs_info, flags, 0, 0, &space_info); + } else { + flags = BTRFS_BLOCK_GROUP_METADATA; + ret = update_space_info(fs_info, flags, 0, 0, &space_info); + if (ret) + goto out; + + flags = BTRFS_BLOCK_GROUP_DATA; + ret = update_space_info(fs_info, flags, 0, 0, &space_info); + } +out: return ret; } diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index ffb48d6c5433..2616f7ed4799 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -81,6 +81,13 @@ static unsigned int btrfs_flags_to_ioctl(unsigned int flags) iflags |= FS_NOATIME_FL; if (flags & BTRFS_INODE_DIRSYNC) iflags |= FS_DIRSYNC_FL; + if (flags & BTRFS_INODE_NODATACOW) + iflags |= FS_NOCOW_FL; + + if ((flags & BTRFS_INODE_COMPRESS) && !(flags & BTRFS_INODE_NOCOMPRESS)) + iflags |= FS_COMPR_FL; + else if (flags & BTRFS_INODE_NOCOMPRESS) + iflags |= FS_NOCOMP_FL; return iflags; } @@ -144,16 +151,13 @@ static int check_flags(unsigned int flags) if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \ FS_NOATIME_FL | FS_NODUMP_FL | \ FS_SYNC_FL | FS_DIRSYNC_FL | \ - FS_NOCOMP_FL | FS_COMPR_FL | \ - FS_NOCOW_FL | FS_COW_FL)) + FS_NOCOMP_FL | FS_COMPR_FL | + FS_NOCOW_FL)) return -EOPNOTSUPP; if ((flags & FS_NOCOMP_FL) && (flags & FS_COMPR_FL)) return -EINVAL; - if ((flags & FS_NOCOW_FL) && (flags & FS_COW_FL)) - return -EINVAL; - return 0; } @@ -218,6 +222,10 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) ip->flags |= BTRFS_INODE_DIRSYNC; else ip->flags &= ~BTRFS_INODE_DIRSYNC; + if (flags & FS_NOCOW_FL) + ip->flags |= BTRFS_INODE_NODATACOW; + else + ip->flags &= ~BTRFS_INODE_NODATACOW; /* * The COMPRESS flag can only be changed by users, while the NOCOMPRESS @@ -230,11 +238,9 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) } else if (flags & FS_COMPR_FL) { ip->flags |= BTRFS_INODE_COMPRESS; ip->flags &= ~BTRFS_INODE_NOCOMPRESS; + } else { + ip->flags &= ~(BTRFS_INODE_COMPRESS | BTRFS_INODE_NOCOMPRESS); } - if (flags & FS_NOCOW_FL) - ip->flags |= BTRFS_INODE_NODATACOW; - else if (flags & FS_COW_FL) - ip->flags &= ~BTRFS_INODE_NODATACOW; trans = btrfs_join_transaction(root, 1); BUG_ON(IS_ERR(trans)); diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index 23d43cde4306..1b2e180b018d 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -277,6 +277,7 @@ cifsConvertToUCS(__le16 *target, const char *source, int srclen, for (i = 0, j = 0; i < srclen; j++) { src_char = source[i]; + charlen = 1; switch (src_char) { case 0: put_unaligned(0, &target[j]); @@ -316,16 +317,13 @@ cifsConvertToUCS(__le16 *target, const char *source, int srclen, dst_char = cpu_to_le16(0x003f); charlen = 1; } - /* - * character may take more than one byte in the source - * string, but will take exactly two bytes in the - * target string - */ - i += charlen; - continue; } + /* + * character may take more than one byte in the source string, + * but will take exactly two bytes in the target string + */ + i += charlen; put_unaligned(dst_char, &target[j]); - i++; /* move to next char in source string */ } ctoUCS_out: diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 05f1dcf7d79a..277262a8e82f 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2673,6 +2673,11 @@ is_path_accessible(int xid, struct cifsTconInfo *tcon, 0 /* not legacy */, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + + if (rc == -EOPNOTSUPP || rc == -EINVAL) + rc = SMBQueryInformation(xid, tcon, full_path, pfile_info, + cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(pfile_info); return rc; } diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c index 3313dd19f543..9a37a9b6de3a 100644 --- a/fs/configfs/dir.c +++ b/fs/configfs/dir.c @@ -53,11 +53,14 @@ DEFINE_SPINLOCK(configfs_dirent_lock); static void configfs_d_iput(struct dentry * dentry, struct inode * inode) { - struct configfs_dirent * sd = dentry->d_fsdata; + struct configfs_dirent *sd = dentry->d_fsdata; if (sd) { BUG_ON(sd->s_dentry != dentry); + /* Coordinate with configfs_readdir */ + spin_lock(&configfs_dirent_lock); sd->s_dentry = NULL; + spin_unlock(&configfs_dirent_lock); configfs_put(sd); } iput(inode); @@ -689,7 +692,8 @@ static int create_default_group(struct config_group *parent_group, sd = child->d_fsdata; sd->s_type |= CONFIGFS_USET_DEFAULT; } else { - d_delete(child); + BUG_ON(child->d_inode); + d_drop(child); dput(child); } } @@ -1545,7 +1549,7 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir struct configfs_dirent * parent_sd = dentry->d_fsdata; struct configfs_dirent *cursor = filp->private_data; struct list_head *p, *q = &cursor->s_sibling; - ino_t ino; + ino_t ino = 0; int i = filp->f_pos; switch (i) { @@ -1573,6 +1577,7 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir struct configfs_dirent *next; const char * name; int len; + struct inode *inode = NULL; next = list_entry(p, struct configfs_dirent, s_sibling); @@ -1581,9 +1586,28 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir name = configfs_get_name(next); len = strlen(name); - if (next->s_dentry) - ino = next->s_dentry->d_inode->i_ino; - else + + /* + * We'll have a dentry and an inode for + * PINNED items and for open attribute + * files. We lock here to prevent a race + * with configfs_d_iput() clearing + * s_dentry before calling iput(). + * + * Why do we go to the trouble? If + * someone has an attribute file open, + * the inode number should match until + * they close it. Beyond that, we don't + * care. + */ + spin_lock(&configfs_dirent_lock); + dentry = next->s_dentry; + if (dentry) + inode = dentry->d_inode; + if (inode) + ino = inode->i_ino; + spin_unlock(&configfs_dirent_lock); + if (!inode) ino = iunique(configfs_sb, 2); if (filldir(dirent, name, len, filp->f_pos, ino, @@ -1683,7 +1707,8 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys) err = configfs_attach_group(sd->s_element, &group->cg_item, dentry); if (err) { - d_delete(dentry); + BUG_ON(dentry->d_inode); + d_drop(dentry); dput(dentry); } else { spin_lock(&configfs_dirent_lock); diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index c6ba49bd95b3..b32eb29a4e6f 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -174,7 +174,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd) if (!inode) return 0; - if (nd->flags & LOOKUP_RCU) + if (nd && (nd->flags & LOOKUP_RCU)) return -ECHILD; fc = get_fuse_conn(inode); diff --git a/fs/namei.c b/fs/namei.c index 54fc993e3027..e3c4f112ebf7 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -179,7 +179,7 @@ EXPORT_SYMBOL(putname); static int acl_permission_check(struct inode *inode, int mask, unsigned int flags, int (*check_acl)(struct inode *inode, int mask, unsigned int flags)) { - umode_t mode = inode->i_mode; + unsigned int mode = inode->i_mode; mask &= MAY_READ | MAY_WRITE | MAY_EXEC; diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 6f8192f4cfc7..be79dc9f386d 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -117,6 +117,8 @@ static int filelayout_async_handle_error(struct rpc_task *task, case -EKEYEXPIRED: rpc_delay(task, FILELAYOUT_POLL_RETRY_MAX); break; + case -NFS4ERR_RETRY_UNCACHED_REP: + break; default: dprintk("%s DS error. Retry through MDS %d\n", __func__, task->tk_status); @@ -416,7 +418,8 @@ static int filelayout_check_layout(struct pnfs_layout_hdr *lo, struct nfs4_filelayout_segment *fl, struct nfs4_layoutget_res *lgr, - struct nfs4_deviceid *id) + struct nfs4_deviceid *id, + gfp_t gfp_flags) { struct nfs4_file_layout_dsaddr *dsaddr; int status = -EINVAL; @@ -439,7 +442,7 @@ filelayout_check_layout(struct pnfs_layout_hdr *lo, /* find and reference the deviceid */ dsaddr = nfs4_fl_find_get_deviceid(id); if (dsaddr == NULL) { - dsaddr = get_device_info(lo->plh_inode, id); + dsaddr = get_device_info(lo->plh_inode, id, gfp_flags); if (dsaddr == NULL) goto out; } @@ -500,7 +503,8 @@ static int filelayout_decode_layout(struct pnfs_layout_hdr *flo, struct nfs4_filelayout_segment *fl, struct nfs4_layoutget_res *lgr, - struct nfs4_deviceid *id) + struct nfs4_deviceid *id, + gfp_t gfp_flags) { struct xdr_stream stream; struct xdr_buf buf = { @@ -516,7 +520,7 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, dprintk("%s: set_layout_map Begin\n", __func__); - scratch = alloc_page(GFP_KERNEL); + scratch = alloc_page(gfp_flags); if (!scratch) return -ENOMEM; @@ -554,13 +558,13 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, goto out_err; fl->fh_array = kzalloc(fl->num_fh * sizeof(struct nfs_fh *), - GFP_KERNEL); + gfp_flags); if (!fl->fh_array) goto out_err; for (i = 0; i < fl->num_fh; i++) { /* Do we want to use a mempool here? */ - fl->fh_array[i] = kmalloc(sizeof(struct nfs_fh), GFP_KERNEL); + fl->fh_array[i] = kmalloc(sizeof(struct nfs_fh), gfp_flags); if (!fl->fh_array[i]) goto out_err_free; @@ -605,19 +609,20 @@ filelayout_free_lseg(struct pnfs_layout_segment *lseg) static struct pnfs_layout_segment * filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid, - struct nfs4_layoutget_res *lgr) + struct nfs4_layoutget_res *lgr, + gfp_t gfp_flags) { struct nfs4_filelayout_segment *fl; int rc; struct nfs4_deviceid id; dprintk("--> %s\n", __func__); - fl = kzalloc(sizeof(*fl), GFP_KERNEL); + fl = kzalloc(sizeof(*fl), gfp_flags); if (!fl) return NULL; - rc = filelayout_decode_layout(layoutid, fl, lgr, &id); - if (rc != 0 || filelayout_check_layout(layoutid, fl, lgr, &id)) { + rc = filelayout_decode_layout(layoutid, fl, lgr, &id, gfp_flags); + if (rc != 0 || filelayout_check_layout(layoutid, fl, lgr, &id, gfp_flags)) { _filelayout_free_lseg(fl); return NULL; } @@ -633,7 +638,7 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid, int size = (fl->stripe_type == STRIPE_SPARSE) ? fl->dsaddr->ds_num : fl->dsaddr->stripe_count; - fl->commit_buckets = kcalloc(size, sizeof(struct list_head), GFP_KERNEL); + fl->commit_buckets = kcalloc(size, sizeof(struct list_head), gfp_flags); if (!fl->commit_buckets) { filelayout_free_lseg(&fl->generic_hdr); return NULL; diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index 7c44579f5832..2b461d77b43a 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -104,6 +104,6 @@ extern struct nfs4_file_layout_dsaddr * nfs4_fl_find_get_deviceid(struct nfs4_deviceid *dev_id); extern void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr); struct nfs4_file_layout_dsaddr * -get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id); +get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags); #endif /* FS_NFS_NFS4FILELAYOUT_H */ diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c index de5350f2b249..db07c7af1395 100644 --- a/fs/nfs/nfs4filelayoutdev.c +++ b/fs/nfs/nfs4filelayoutdev.c @@ -225,11 +225,11 @@ nfs4_fl_free_deviceid(struct nfs4_file_layout_dsaddr *dsaddr) } static struct nfs4_pnfs_ds * -nfs4_pnfs_ds_add(struct inode *inode, u32 ip_addr, u32 port) +nfs4_pnfs_ds_add(struct inode *inode, u32 ip_addr, u32 port, gfp_t gfp_flags) { struct nfs4_pnfs_ds *tmp_ds, *ds; - ds = kzalloc(sizeof(*tmp_ds), GFP_KERNEL); + ds = kzalloc(sizeof(*tmp_ds), gfp_flags); if (!ds) goto out; @@ -261,7 +261,7 @@ out: * Currently only support ipv4, and one multi-path address. */ static struct nfs4_pnfs_ds * -decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode) +decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode, gfp_t gfp_flags) { struct nfs4_pnfs_ds *ds = NULL; char *buf; @@ -303,7 +303,7 @@ decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode) rlen); goto out_err; } - buf = kmalloc(rlen + 1, GFP_KERNEL); + buf = kmalloc(rlen + 1, gfp_flags); if (!buf) { dprintk("%s: Not enough memory\n", __func__); goto out_err; @@ -333,7 +333,7 @@ decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode) sscanf(pstr, "-%d-%d", &tmp[0], &tmp[1]); port = htons((tmp[0] << 8) | (tmp[1])); - ds = nfs4_pnfs_ds_add(inode, ip_addr, port); + ds = nfs4_pnfs_ds_add(inode, ip_addr, port, gfp_flags); dprintk("%s: Decoded address and port %s\n", __func__, buf); out_free: kfree(buf); @@ -343,7 +343,7 @@ out_err: /* Decode opaque device data and return the result */ static struct nfs4_file_layout_dsaddr* -decode_device(struct inode *ino, struct pnfs_device *pdev) +decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags) { int i; u32 cnt, num; @@ -362,7 +362,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev) struct page *scratch; /* set up xdr stream */ - scratch = alloc_page(GFP_KERNEL); + scratch = alloc_page(gfp_flags); if (!scratch) goto out_err; @@ -384,7 +384,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev) } /* read stripe indices */ - stripe_indices = kcalloc(cnt, sizeof(u8), GFP_KERNEL); + stripe_indices = kcalloc(cnt, sizeof(u8), gfp_flags); if (!stripe_indices) goto out_err_free_scratch; @@ -423,7 +423,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev) dsaddr = kzalloc(sizeof(*dsaddr) + (sizeof(struct nfs4_pnfs_ds *) * (num - 1)), - GFP_KERNEL); + gfp_flags); if (!dsaddr) goto out_err_free_stripe_indices; @@ -452,7 +452,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev) for (j = 0; j < mp_count; j++) { if (j == 0) { dsaddr->ds_list[i] = decode_and_add_ds(&stream, - ino); + ino, gfp_flags); if (dsaddr->ds_list[i] == NULL) goto out_err_free_deviceid; } else { @@ -503,12 +503,12 @@ out_err: * available devices. */ static struct nfs4_file_layout_dsaddr * -decode_and_add_device(struct inode *inode, struct pnfs_device *dev) +decode_and_add_device(struct inode *inode, struct pnfs_device *dev, gfp_t gfp_flags) { struct nfs4_file_layout_dsaddr *d, *new; long hash; - new = decode_device(inode, dev); + new = decode_device(inode, dev, gfp_flags); if (!new) { printk(KERN_WARNING "%s: Could not decode or add device\n", __func__); @@ -537,7 +537,7 @@ decode_and_add_device(struct inode *inode, struct pnfs_device *dev) * of available devices, and return it. */ struct nfs4_file_layout_dsaddr * -get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id) +get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags) { struct pnfs_device *pdev = NULL; u32 max_resp_sz; @@ -556,17 +556,17 @@ get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id) dprintk("%s inode %p max_resp_sz %u max_pages %d\n", __func__, inode, max_resp_sz, max_pages); - pdev = kzalloc(sizeof(struct pnfs_device), GFP_KERNEL); + pdev = kzalloc(sizeof(struct pnfs_device), gfp_flags); if (pdev == NULL) return NULL; - pages = kzalloc(max_pages * sizeof(struct page *), GFP_KERNEL); + pages = kzalloc(max_pages * sizeof(struct page *), gfp_flags); if (pages == NULL) { kfree(pdev); return NULL; } for (i = 0; i < max_pages; i++) { - pages[i] = alloc_page(GFP_KERNEL); + pages[i] = alloc_page(gfp_flags); if (!pages[i]) goto out_free; } @@ -587,7 +587,7 @@ get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id) * Found new device, need to decode it and then add it to the * list of known devices for this mountpoint. */ - dsaddr = decode_and_add_device(inode, pdev); + dsaddr = decode_and_add_device(inode, pdev, gfp_flags); out_free: for (i = 0; i < max_pages; i++) __free_page(pages[i]); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 69c0f3c5ee7a..cf1b339c3937 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -300,6 +300,7 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc ret = nfs4_delay(server->client, &exception->timeout); if (ret != 0) break; + case -NFS4ERR_RETRY_UNCACHED_REP: case -NFS4ERR_OLD_STATEID: exception->retry = 1; break; @@ -3695,6 +3696,7 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, rpc_delay(task, NFS4_POLL_RETRY_MAX); task->tk_status = 0; return -EAGAIN; + case -NFS4ERR_RETRY_UNCACHED_REP: case -NFS4ERR_OLD_STATEID: task->tk_status = 0; return -EAGAIN; @@ -4844,6 +4846,8 @@ static void nfs4_get_lease_time_done(struct rpc_task *task, void *calldata) dprintk("%s Retry: tk_status %d\n", __func__, task->tk_status); rpc_delay(task, NFS4_POLL_RETRY_MIN); task->tk_status = 0; + /* fall through */ + case -NFS4ERR_RETRY_UNCACHED_REP: nfs_restart_rpc(task, data->clp); return; } @@ -5479,6 +5483,8 @@ static int nfs41_reclaim_complete_handle_errors(struct rpc_task *task, struct nf break; case -NFS4ERR_DELAY: rpc_delay(task, NFS4_POLL_RETRY_MAX); + /* fall through */ + case -NFS4ERR_RETRY_UNCACHED_REP: return -EAGAIN; default: nfs4_schedule_lease_recovery(clp); diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index ff681ab65d31..f57f5281a520 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -383,6 +383,7 @@ pnfs_destroy_all_layouts(struct nfs_client *clp) plh_layouts); dprintk("%s freeing layout for inode %lu\n", __func__, lo->plh_inode->i_ino); + list_del_init(&lo->plh_layouts); pnfs_destroy_layout(NFS_I(lo->plh_inode)); } } @@ -466,7 +467,8 @@ pnfs_choose_layoutget_stateid(nfs4_stateid *dst, struct pnfs_layout_hdr *lo, static struct pnfs_layout_segment * send_layoutget(struct pnfs_layout_hdr *lo, struct nfs_open_context *ctx, - u32 iomode) + u32 iomode, + gfp_t gfp_flags) { struct inode *ino = lo->plh_inode; struct nfs_server *server = NFS_SERVER(ino); @@ -479,7 +481,7 @@ send_layoutget(struct pnfs_layout_hdr *lo, dprintk("--> %s\n", __func__); BUG_ON(ctx == NULL); - lgp = kzalloc(sizeof(*lgp), GFP_KERNEL); + lgp = kzalloc(sizeof(*lgp), gfp_flags); if (lgp == NULL) return NULL; @@ -487,12 +489,12 @@ send_layoutget(struct pnfs_layout_hdr *lo, max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz; max_pages = max_resp_sz >> PAGE_SHIFT; - pages = kzalloc(max_pages * sizeof(struct page *), GFP_KERNEL); + pages = kzalloc(max_pages * sizeof(struct page *), gfp_flags); if (!pages) goto out_err_free; for (i = 0; i < max_pages; i++) { - pages[i] = alloc_page(GFP_KERNEL); + pages[i] = alloc_page(gfp_flags); if (!pages[i]) goto out_err_free; } @@ -508,6 +510,7 @@ send_layoutget(struct pnfs_layout_hdr *lo, lgp->args.layout.pages = pages; lgp->args.layout.pglen = max_pages * PAGE_SIZE; lgp->lsegpp = &lseg; + lgp->gfp_flags = gfp_flags; /* Synchronously retrieve layout information from server and * store in lseg. @@ -665,11 +668,11 @@ pnfs_insert_layout(struct pnfs_layout_hdr *lo, } static struct pnfs_layout_hdr * -alloc_init_layout_hdr(struct inode *ino) +alloc_init_layout_hdr(struct inode *ino, gfp_t gfp_flags) { struct pnfs_layout_hdr *lo; - lo = kzalloc(sizeof(struct pnfs_layout_hdr), GFP_KERNEL); + lo = kzalloc(sizeof(struct pnfs_layout_hdr), gfp_flags); if (!lo) return NULL; atomic_set(&lo->plh_refcount, 1); @@ -681,7 +684,7 @@ alloc_init_layout_hdr(struct inode *ino) } static struct pnfs_layout_hdr * -pnfs_find_alloc_layout(struct inode *ino) +pnfs_find_alloc_layout(struct inode *ino, gfp_t gfp_flags) { struct nfs_inode *nfsi = NFS_I(ino); struct pnfs_layout_hdr *new = NULL; @@ -696,7 +699,7 @@ pnfs_find_alloc_layout(struct inode *ino) return nfsi->layout; } spin_unlock(&ino->i_lock); - new = alloc_init_layout_hdr(ino); + new = alloc_init_layout_hdr(ino, gfp_flags); spin_lock(&ino->i_lock); if (likely(nfsi->layout == NULL)) /* Won the race? */ @@ -756,7 +759,8 @@ pnfs_find_lseg(struct pnfs_layout_hdr *lo, u32 iomode) struct pnfs_layout_segment * pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, - enum pnfs_iomode iomode) + enum pnfs_iomode iomode, + gfp_t gfp_flags) { struct nfs_inode *nfsi = NFS_I(ino); struct nfs_client *clp = NFS_SERVER(ino)->nfs_client; @@ -767,7 +771,7 @@ pnfs_update_layout(struct inode *ino, if (!pnfs_enabled_sb(NFS_SERVER(ino))) return NULL; spin_lock(&ino->i_lock); - lo = pnfs_find_alloc_layout(ino); + lo = pnfs_find_alloc_layout(ino, gfp_flags); if (lo == NULL) { dprintk("%s ERROR: can't get pnfs_layout_hdr\n", __func__); goto out_unlock; @@ -807,7 +811,7 @@ pnfs_update_layout(struct inode *ino, spin_unlock(&clp->cl_lock); } - lseg = send_layoutget(lo, ctx, iomode); + lseg = send_layoutget(lo, ctx, iomode, gfp_flags); if (!lseg && first) { spin_lock(&clp->cl_lock); list_del_init(&lo->plh_layouts); @@ -846,7 +850,7 @@ pnfs_layout_process(struct nfs4_layoutget *lgp) goto out; } /* Inject layout blob into I/O device driver */ - lseg = NFS_SERVER(ino)->pnfs_curr_ld->alloc_lseg(lo, res); + lseg = NFS_SERVER(ino)->pnfs_curr_ld->alloc_lseg(lo, res, lgp->gfp_flags); if (!lseg || IS_ERR(lseg)) { if (!lseg) status = -ENOMEM; @@ -899,7 +903,8 @@ static int pnfs_read_pg_test(struct nfs_pageio_descriptor *pgio, /* This is first coelesce call for a series of nfs_pages */ pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, prev->wb_context, - IOMODE_READ); + IOMODE_READ, + GFP_KERNEL); } return NFS_SERVER(pgio->pg_inode)->pnfs_curr_ld->pg_test(pgio, prev, req); } @@ -921,7 +926,8 @@ static int pnfs_write_pg_test(struct nfs_pageio_descriptor *pgio, /* This is first coelesce call for a series of nfs_pages */ pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, prev->wb_context, - IOMODE_RW); + IOMODE_RW, + GFP_NOFS); } return NFS_SERVER(pgio->pg_inode)->pnfs_curr_ld->pg_test(pgio, prev, req); } diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index bc4827202e7a..0c015bad9e7a 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -70,7 +70,7 @@ struct pnfs_layoutdriver_type { const u32 id; const char *name; struct module *owner; - struct pnfs_layout_segment * (*alloc_lseg) (struct pnfs_layout_hdr *layoutid, struct nfs4_layoutget_res *lgr); + struct pnfs_layout_segment * (*alloc_lseg) (struct pnfs_layout_hdr *layoutid, struct nfs4_layoutget_res *lgr, gfp_t gfp_flags); void (*free_lseg) (struct pnfs_layout_segment *lseg); /* test for nfs page cache coalescing */ @@ -126,7 +126,7 @@ void get_layout_hdr(struct pnfs_layout_hdr *lo); void put_lseg(struct pnfs_layout_segment *lseg); struct pnfs_layout_segment * pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, - enum pnfs_iomode access_type); + enum pnfs_iomode access_type, gfp_t gfp_flags); void set_pnfs_layoutdriver(struct nfs_server *, u32 id); void unset_pnfs_layoutdriver(struct nfs_server *); enum pnfs_try_status pnfs_try_to_write_data(struct nfs_write_data *, @@ -245,7 +245,7 @@ static inline void put_lseg(struct pnfs_layout_segment *lseg) static inline struct pnfs_layout_segment * pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, - enum pnfs_iomode access_type) + enum pnfs_iomode access_type, gfp_t gfp_flags) { return NULL; } diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 7cded2b12a05..2bcf0dc306a1 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -288,7 +288,7 @@ static int nfs_pagein_multi(struct nfs_pageio_descriptor *desc) atomic_set(&req->wb_complete, requests); BUG_ON(desc->pg_lseg != NULL); - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ, GFP_KERNEL); ClearPageError(page); offset = 0; nbytes = desc->pg_count; @@ -351,7 +351,7 @@ static int nfs_pagein_one(struct nfs_pageio_descriptor *desc) } req = nfs_list_entry(data->pages.next); if ((!lseg) && list_is_singular(&data->pages)) - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ, GFP_KERNEL); ret = nfs_read_rpcsetup(req, data, &nfs_read_full_ops, desc->pg_count, 0, lseg); diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 3bd5d7e80f6c..49c715b4ac92 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -939,7 +939,7 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc) atomic_set(&req->wb_complete, requests); BUG_ON(desc->pg_lseg); - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW, GFP_NOFS); ClearPageError(page); offset = 0; nbytes = desc->pg_count; @@ -1013,7 +1013,7 @@ static int nfs_flush_one(struct nfs_pageio_descriptor *desc) } req = nfs_list_entry(data->pages.next); if ((!lseg) && list_is_singular(&data->pages)) - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW, GFP_NOFS); if ((desc->pg_ioflags & FLUSH_COND_STABLE) && (desc->pg_moreio || NFS_I(desc->pg_inode)->ncommit)) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 643720209a98..9a3e6bbff27b 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -539,25 +539,41 @@ static int o2hb_verify_crc(struct o2hb_region *reg, /* We want to make sure that nobody is heartbeating on top of us -- * this will help detect an invalid configuration. */ -static int o2hb_check_last_timestamp(struct o2hb_region *reg) +static void o2hb_check_last_timestamp(struct o2hb_region *reg) { - int node_num, ret; struct o2hb_disk_slot *slot; struct o2hb_disk_heartbeat_block *hb_block; + char *errstr; - node_num = o2nm_this_node(); - - ret = 1; - slot = ®->hr_slots[node_num]; + slot = ®->hr_slots[o2nm_this_node()]; /* Don't check on our 1st timestamp */ - if (slot->ds_last_time) { - hb_block = slot->ds_raw_block; + if (!slot->ds_last_time) + return; - if (le64_to_cpu(hb_block->hb_seq) != slot->ds_last_time) - ret = 0; - } + hb_block = slot->ds_raw_block; + if (le64_to_cpu(hb_block->hb_seq) == slot->ds_last_time && + le64_to_cpu(hb_block->hb_generation) == slot->ds_last_generation && + hb_block->hb_node == slot->ds_node_num) + return; - return ret; +#define ERRSTR1 "Another node is heartbeating on device" +#define ERRSTR2 "Heartbeat generation mismatch on device" +#define ERRSTR3 "Heartbeat sequence mismatch on device" + + if (hb_block->hb_node != slot->ds_node_num) + errstr = ERRSTR1; + else if (le64_to_cpu(hb_block->hb_generation) != + slot->ds_last_generation) + errstr = ERRSTR2; + else + errstr = ERRSTR3; + + mlog(ML_ERROR, "%s (%s): expected(%u:0x%llx, 0x%llx), " + "ondisk(%u:0x%llx, 0x%llx)\n", errstr, reg->hr_dev_name, + slot->ds_node_num, (unsigned long long)slot->ds_last_generation, + (unsigned long long)slot->ds_last_time, hb_block->hb_node, + (unsigned long long)le64_to_cpu(hb_block->hb_generation), + (unsigned long long)le64_to_cpu(hb_block->hb_seq)); } static inline void o2hb_prepare_block(struct o2hb_region *reg, @@ -983,9 +999,7 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) /* With an up to date view of the slots, we can check that no * other node has been improperly configured to heartbeat in * our slot. */ - if (!o2hb_check_last_timestamp(reg)) - mlog(ML_ERROR, "Device \"%s\": another node is heartbeating " - "in our slot!\n", reg->hr_dev_name); + o2hb_check_last_timestamp(reg); /* fill in the proper info for our next heartbeat */ o2hb_prepare_block(reg, reg->hr_generation); @@ -999,8 +1013,8 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) } i = -1; - while((i = find_next_bit(configured_nodes, O2NM_MAX_NODES, i + 1)) < O2NM_MAX_NODES) { - + while((i = find_next_bit(configured_nodes, + O2NM_MAX_NODES, i + 1)) < O2NM_MAX_NODES) { change |= o2hb_check_slot(reg, ®->hr_slots[i]); } @@ -1690,6 +1704,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg, struct file *filp = NULL; struct inode *inode = NULL; ssize_t ret = -EINVAL; + int live_threshold; if (reg->hr_bdev) goto out; @@ -1766,8 +1781,18 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg, * A node is considered live after it has beat LIVE_THRESHOLD * times. We're not steady until we've given them a chance * _after_ our first read. + * The default threshold is bare minimum so as to limit the delay + * during mounts. For global heartbeat, the threshold doubled for the + * first region. */ - atomic_set(®->hr_steady_iterations, O2HB_LIVE_THRESHOLD + 1); + live_threshold = O2HB_LIVE_THRESHOLD; + if (o2hb_global_heartbeat_active()) { + spin_lock(&o2hb_live_lock); + if (o2hb_pop_count(&o2hb_region_bitmap, O2NM_MAX_REGIONS) == 1) + live_threshold <<= 1; + spin_unlock(&o2hb_live_lock); + } + atomic_set(®->hr_steady_iterations, live_threshold + 1); hb_task = kthread_run(o2hb_thread, reg, "o2hb-%s", reg->hr_item.ci_name); diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index 9fe5b8fd658f..8582e3f4f120 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -2868,7 +2868,7 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh, bytes = blocks_wanted << sb->s_blocksize_bits; struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); struct ocfs2_inode_info *oi = OCFS2_I(dir); - struct ocfs2_alloc_context *data_ac; + struct ocfs2_alloc_context *data_ac = NULL; struct ocfs2_alloc_context *meta_ac = NULL; struct buffer_head *dirdata_bh = NULL; struct buffer_head *dx_root_bh = NULL; diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 7540a492eaba..3b179d6cbde0 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -1614,7 +1614,8 @@ static int dlm_try_to_join_domain(struct dlm_ctxt *dlm) spin_unlock(&dlm->spinlock); /* Support for global heartbeat and node info was added in 1.1 */ - if (dlm_protocol.pv_major > 1 || dlm_protocol.pv_minor > 0) { + if (dlm->dlm_locking_proto.pv_major > 1 || + dlm->dlm_locking_proto.pv_minor > 0) { status = dlm_send_nodeinfo(dlm, ctxt->yes_resp_map); if (status) { mlog_errno(status); diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index fede57ed005f..84d166328cf7 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -2574,6 +2574,9 @@ fail: res->state &= ~DLM_LOCK_RES_MIGRATING; wake = 1; spin_unlock(&res->spinlock); + if (dlm_is_host_down(ret)) + dlm_wait_for_node_death(dlm, target, + DLM_NODE_DEATH_WAIT_MAX); goto leave; } diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 41565ae52856..89659d6dc206 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1607,6 +1607,9 @@ static void ocfs2_calc_trunc_pos(struct inode *inode, range = le32_to_cpu(rec->e_cpos) + ocfs2_rec_clusters(el, rec); if (le32_to_cpu(rec->e_cpos) >= trunc_start) { + /* + * remove an entire extent record. + */ *trunc_cpos = le32_to_cpu(rec->e_cpos); /* * Skip holes if any. @@ -1617,7 +1620,16 @@ static void ocfs2_calc_trunc_pos(struct inode *inode, *blkno = le64_to_cpu(rec->e_blkno); *trunc_end = le32_to_cpu(rec->e_cpos); } else if (range > trunc_start) { + /* + * remove a partial extent record, which means we're + * removing the last extent record. + */ *trunc_cpos = trunc_start; + /* + * skip hole if any. + */ + if (range < *trunc_end) + *trunc_end = range; *trunc_len = *trunc_end - trunc_start; coff = trunc_start - le32_to_cpu(rec->e_cpos); *blkno = le64_to_cpu(rec->e_blkno) + diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index b141a44605ca..295d56454e8b 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -1260,6 +1260,9 @@ void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) { struct ocfs2_journal *journal = osb->journal; + if (ocfs2_is_hard_readonly(osb)) + return; + /* No need to queue up our truncate_log as regular cleanup will catch * that */ ocfs2_queue_recovery_completion(journal, osb->slot_num, diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index ade09d7b4271..c99c3d3e7811 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -127,7 +127,7 @@ void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info); -bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); +int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel); int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper); int drm_fb_helper_debug_enter(struct fb_info *info); diff --git a/include/linux/capability.h b/include/linux/capability.h index 16ee8b49a200..d4675af963fa 100644 --- a/include/linux/capability.h +++ b/include/linux/capability.h @@ -546,18 +546,7 @@ extern bool has_capability_noaudit(struct task_struct *t, int cap); extern bool capable(int cap); extern bool ns_capable(struct user_namespace *ns, int cap); extern bool task_ns_capable(struct task_struct *t, int cap); - -/** - * nsown_capable - Check superior capability to one's own user_ns - * @cap: The capability in question - * - * Return true if the current task has the given superior capability - * targeted at its own user namespace. - */ -static inline bool nsown_capable(int cap) -{ - return ns_capable(current_user_ns(), cap); -} +extern bool nsown_capable(int cap); /* audit system wants to get cap info from files as well */ extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps); diff --git a/include/linux/cred.h b/include/linux/cred.h index 9aeeb0ba2003..be16b61283cc 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -146,6 +146,7 @@ struct cred { void *security; /* subjective LSM security */ #endif struct user_struct *user; /* real user ID subscription */ + struct user_namespace *user_ns; /* cached user->user_ns */ struct group_info *group_info; /* supplementary groups for euid/fsgid */ struct rcu_head rcu; /* RCU deletion hook */ }; @@ -354,10 +355,15 @@ static inline void put_cred(const struct cred *_cred) #define current_fsgid() (current_cred_xxx(fsgid)) #define current_cap() (current_cred_xxx(cap_effective)) #define current_user() (current_cred_xxx(user)) -#define _current_user_ns() (current_cred_xxx(user)->user_ns) #define current_security() (current_cred_xxx(security)) -extern struct user_namespace *current_user_ns(void); +#ifdef CONFIG_USER_NS +#define current_user_ns() (current_cred_xxx(user_ns)) +#else +extern struct user_namespace init_user_ns; +#define current_user_ns() (&init_user_ns) +#endif + #define current_uid_gid(_uid, _gid) \ do { \ diff --git a/include/linux/device.h b/include/linux/device.h index ab8dfc095709..d08399db6e2c 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -442,7 +442,6 @@ struct device { struct dev_archdata archdata; struct device_node *of_node; /* associated device tree node */ - const struct of_device_id *of_match; /* matching of_device_id from driver */ dev_t devt; /* dev_t, creates the sysfs "dev" */ diff --git a/include/linux/fb.h b/include/linux/fb.h index df728c1c29ed..6a8274877171 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -832,6 +832,7 @@ struct fb_tile_ops { #define FBINFO_CAN_FORCE_OUTPUT 0x200000 struct fb_info { + atomic_t count; int node; int flags; struct mutex lock; /* Lock for open/release/ioctl funcs */ diff --git a/include/linux/fs.h b/include/linux/fs.h index dbd860af0804..cdf9495df204 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -358,7 +358,6 @@ struct inodes_stat_t { #define FS_EXTENT_FL 0x00080000 /* Extents */ #define FS_DIRECTIO_FL 0x00100000 /* Use direct i/o */ #define FS_NOCOW_FL 0x00800000 /* Do not cow file */ -#define FS_COW_FL 0x02000000 /* Cow file */ #define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */ #define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index eb792cb6d745..bcb793ec7374 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -183,6 +183,7 @@ struct mmc_host { struct work_struct clk_gate_work; /* delayed clock gate */ unsigned int clk_old; /* old clock value cache */ spinlock_t clk_lock; /* lock for clk fields */ + struct mutex clk_gate_mutex; /* mutex for clock gating */ #endif /* host specific block data */ diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 890dce242639..7e371f7df9c4 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -233,6 +233,7 @@ struct nfs4_layoutget { struct nfs4_layoutget_args args; struct nfs4_layoutget_res res; struct pnfs_layout_segment **lsegpp; + gfp_t gfp_flags; }; struct nfs4_getdeviceinfo_args { diff --git a/include/linux/of_device.h b/include/linux/of_device.h index 8bfe6c1d4365..ae5638480ef2 100644 --- a/include/linux/of_device.h +++ b/include/linux/of_device.h @@ -21,8 +21,7 @@ extern void of_device_make_bus_id(struct device *dev); static inline int of_driver_match_device(struct device *dev, const struct device_driver *drv) { - dev->of_match = of_match_device(drv->of_match_table, dev); - return dev->of_match != NULL; + return of_match_device(drv->of_match_table, dev) != NULL; } extern struct platform_device *of_dev_get(struct platform_device *dev); @@ -58,6 +57,11 @@ static inline int of_device_uevent(struct device *dev, static inline void of_device_node_put(struct device *dev) { } +static inline const struct of_device_id *of_match_device( + const struct of_device_id *matches, const struct device *dev) +{ + return NULL; +} #endif /* CONFIG_OF_DEVICE */ #endif /* _LINUX_OF_DEVICE_H */ diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 838c1149251a..eaf4350c0f90 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -208,6 +208,8 @@ static inline struct proc_dir_entry *proc_symlink(const char *name, struct proc_dir_entry *parent,const char *dest) {return NULL;} static inline struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent) {return NULL;} +static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, + mode_t mode, struct proc_dir_entry *parent) { return NULL; } static inline struct proc_dir_entry *create_proc_read_entry(const char *name, mode_t mode, struct proc_dir_entry *base, diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h index 88bdd010d65d..2fa8d1341a0a 100644 --- a/include/net/inet_ecn.h +++ b/include/net/inet_ecn.h @@ -38,9 +38,19 @@ static inline __u8 INET_ECN_encapsulate(__u8 outer, __u8 inner) return outer; } -#define INET_ECN_xmit(sk) do { inet_sk(sk)->tos |= INET_ECN_ECT_0; } while (0) -#define INET_ECN_dontxmit(sk) \ - do { inet_sk(sk)->tos &= ~INET_ECN_MASK; } while (0) +static inline void INET_ECN_xmit(struct sock *sk) +{ + inet_sk(sk)->tos |= INET_ECN_ECT_0; + if (inet6_sk(sk) != NULL) + inet6_sk(sk)->tclass |= INET_ECN_ECT_0; +} + +static inline void INET_ECN_dontxmit(struct sock *sk) +{ + inet_sk(sk)->tos &= ~INET_ECN_MASK; + if (inet6_sk(sk) != NULL) + inet6_sk(sk)->tclass &= ~INET_ECN_MASK; +} #define IP6_ECN_flow_init(label) do { \ (label) &= ~htonl(INET_ECN_MASK << 20); \ diff --git a/include/net/llc_pdu.h b/include/net/llc_pdu.h index 75b8e2968c9b..f57e7d46a453 100644 --- a/include/net/llc_pdu.h +++ b/include/net/llc_pdu.h @@ -199,7 +199,7 @@ struct llc_pdu_sn { u8 ssap; u8 ctrl_1; u8 ctrl_2; -}; +} __packed; static inline struct llc_pdu_sn *llc_pdu_sn_hdr(struct sk_buff *skb) { @@ -211,7 +211,7 @@ struct llc_pdu_un { u8 dsap; u8 ssap; u8 ctrl_1; -}; +} __packed; static inline struct llc_pdu_un *llc_pdu_un_hdr(struct sk_buff *skb) { @@ -359,7 +359,7 @@ struct llc_xid_info { u8 fmt_id; /* always 0x81 for LLC */ u8 type; /* different if NULL/non-NULL LSAP */ u8 rw; /* sender receive window */ -}; +} __packed; /** * llc_pdu_init_as_xid_cmd - sets bytes 3, 4 & 5 of LLC header as XID @@ -415,7 +415,7 @@ struct llc_frmr_info { u8 curr_ssv; /* current send state variable val */ u8 curr_rsv; /* current receive state variable */ u8 ind_bits; /* indicator bits set with macro */ -}; +} __packed; extern void llc_pdu_set_cmd_rsp(struct sk_buff *skb, u8 type); extern void llc_pdu_set_pf_bit(struct sk_buff *skb, u8 bit_value); diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 2d3ec5094685..dd82e02ddde3 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -169,6 +169,7 @@ struct scsi_device { sdev_dev; struct execute_work ew; /* used to get process context on put */ + struct work_struct requeue_work; struct scsi_dh_data *scsi_dh_data; enum scsi_device_state sdev_state; diff --git a/kernel/capability.c b/kernel/capability.c index bf0c734d0c12..32a80e08ff4b 100644 --- a/kernel/capability.c +++ b/kernel/capability.c @@ -399,3 +399,15 @@ bool task_ns_capable(struct task_struct *t, int cap) return ns_capable(task_cred_xxx(t, user)->user_ns, cap); } EXPORT_SYMBOL(task_ns_capable); + +/** + * nsown_capable - Check superior capability to one's own user_ns + * @cap: The capability in question + * + * Return true if the current task has the given superior capability + * targeted at its own user namespace. + */ +bool nsown_capable(int cap) +{ + return ns_capable(current_user_ns(), cap); +} diff --git a/kernel/cred.c b/kernel/cred.c index 5557b55048df..8093c16b84b1 100644 --- a/kernel/cred.c +++ b/kernel/cred.c @@ -54,6 +54,7 @@ struct cred init_cred = { .cap_effective = CAP_INIT_EFF_SET, .cap_bset = CAP_INIT_BSET, .user = INIT_USER, + .user_ns = &init_user_ns, .group_info = &init_groups, #ifdef CONFIG_KEYS .tgcred = &init_tgcred, @@ -410,6 +411,11 @@ int copy_creds(struct task_struct *p, unsigned long clone_flags) goto error_put; } + /* cache user_ns in cred. Doesn't need a refcount because it will + * stay pinned by cred->user + */ + new->user_ns = new->user->user_ns; + #ifdef CONFIG_KEYS /* new threads get their own thread keyrings if their parent already * had one */ @@ -741,12 +747,6 @@ int set_create_files_as(struct cred *new, struct inode *inode) } EXPORT_SYMBOL(set_create_files_as); -struct user_namespace *current_user_ns(void) -{ - return _current_user_ns(); -} -EXPORT_SYMBOL(current_user_ns); - #ifdef CONFIG_DEBUG_CREDENTIALS bool creds_are_invalid(const struct cred *cred) diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index 6519cf62d9cd..0e17c10f8a9d 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -685,8 +685,8 @@ int __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq) /* Add clocksource to the clcoksource list */ mutex_lock(&clocksource_mutex); clocksource_enqueue(cs); - clocksource_select(); clocksource_enqueue_watchdog(cs); + clocksource_select(); mutex_unlock(&clocksource_mutex); return 0; } @@ -706,8 +706,8 @@ int clocksource_register(struct clocksource *cs) mutex_lock(&clocksource_mutex); clocksource_enqueue(cs); - clocksource_select(); clocksource_enqueue_watchdog(cs); + clocksource_select(); mutex_unlock(&clocksource_mutex); return 0; } diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index da800ffa810c..723c7637e55a 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -522,10 +522,11 @@ static void tick_broadcast_init_next_event(struct cpumask *mask, */ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) { + int cpu = smp_processor_id(); + /* Set it up only once ! */ if (bc->event_handler != tick_handle_oneshot_broadcast) { int was_periodic = bc->mode == CLOCK_EVT_MODE_PERIODIC; - int cpu = smp_processor_id(); bc->event_handler = tick_handle_oneshot_broadcast; clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT); @@ -551,6 +552,15 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) tick_broadcast_set_event(tick_next_period, 1); } else bc->next_event.tv64 = KTIME_MAX; + } else { + /* + * The first cpu which switches to oneshot mode sets + * the bit for all other cpus which are in the general + * (periodic) broadcast mask. So the bit is set and + * would prevent the first broadcast enter after this + * to program the bc device. + */ + tick_broadcast_clear_oneshot(cpu); } } diff --git a/lib/vsprintf.c b/lib/vsprintf.c index bc0ac6b333dc..dfd60192bc2e 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -797,7 +797,7 @@ char *uuid_string(char *buf, char *end, const u8 *addr, return string(buf, end, uuid, spec); } -int kptr_restrict = 1; +int kptr_restrict __read_mostly; /* * Show a '%p' thing. A kernel extension is that the '%p' is followed diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 570d944daeb5..3f8bce264df6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2358,6 +2358,7 @@ EXPORT_SYMBOL(alloc_pages_exact); /** * alloc_pages_exact_nid - allocate an exact number of physically-contiguous * pages on a node. + * @nid: the preferred node ID where memory should be allocated * @size: the number of bytes to allocate * @gfp_mask: GFP flags for the allocation * diff --git a/mm/shmem.c b/mm/shmem.c index 9e755c166cc5..dfc7069102ee 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1037,7 +1037,6 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) struct address_space *mapping; unsigned long index; struct inode *inode; - bool unlock_mutex = false; BUG_ON(!PageLocked(page)); mapping = page->mapping; @@ -1072,15 +1071,14 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) * we've taken the spinlock, because shmem_unuse_inode() will * prune a !swapped inode from the swaplist under both locks. */ - if (swap.val && list_empty(&info->swaplist)) { + if (swap.val) { mutex_lock(&shmem_swaplist_mutex); - /* move instead of add in case we're racing */ - list_move_tail(&info->swaplist, &shmem_swaplist); - unlock_mutex = true; + if (list_empty(&info->swaplist)) + list_add_tail(&info->swaplist, &shmem_swaplist); } spin_lock(&info->lock); - if (unlock_mutex) + if (swap.val) mutex_unlock(&shmem_swaplist_mutex); if (index >= info->next_index) { diff --git a/mm/vmscan.c b/mm/vmscan.c index f6b435c80079..8bfd45050a61 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -937,7 +937,7 @@ keep_lumpy: * back off and wait for congestion to clear because further reclaim * will encounter the same problem */ - if (nr_dirty == nr_congested && nr_dirty != 0) + if (nr_dirty && nr_dirty == nr_congested && scanning_global_lru(sc)) zone_set_flag(zone, ZONE_CONGESTED); free_page_list(&free_pages); diff --git a/net/9p/protocol.c b/net/9p/protocol.c index b58a501cf3d1..a873277cb996 100644 --- a/net/9p/protocol.c +++ b/net/9p/protocol.c @@ -674,6 +674,7 @@ int p9dirent_read(char *buf, int len, struct p9_dirent *dirent, } strcpy(dirent->d_name, nameptr); + kfree(nameptr); out: return fake_pdu.offset; diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index f3bc322c5891..74ef4d4846a4 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -737,7 +737,7 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb, nf_bridge->mask |= BRNF_PKT_TYPE; } - if (br_parse_ip_options(skb)) + if (pf == PF_INET && br_parse_ip_options(skb)) return NF_DROP; /* The physdev module checks on this */ diff --git a/net/core/dev.c b/net/core/dev.c index 92009440d28b..b624fe4d9bd7 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5186,27 +5186,27 @@ u32 netdev_fix_features(struct net_device *dev, u32 features) /* Fix illegal checksum combinations */ if ((features & NETIF_F_HW_CSUM) && (features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) { - netdev_info(dev, "mixed HW and IP checksum settings.\n"); + netdev_warn(dev, "mixed HW and IP checksum settings.\n"); features &= ~(NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM); } if ((features & NETIF_F_NO_CSUM) && (features & (NETIF_F_HW_CSUM|NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) { - netdev_info(dev, "mixed no checksumming and other settings.\n"); + netdev_warn(dev, "mixed no checksumming and other settings.\n"); features &= ~(NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM|NETIF_F_HW_CSUM); } /* Fix illegal SG+CSUM combinations. */ if ((features & NETIF_F_SG) && !(features & NETIF_F_ALL_CSUM)) { - netdev_info(dev, - "Dropping NETIF_F_SG since no checksum feature.\n"); + netdev_dbg(dev, + "Dropping NETIF_F_SG since no checksum feature.\n"); features &= ~NETIF_F_SG; } /* TSO requires that SG is present as well. */ if ((features & NETIF_F_ALL_TSO) && !(features & NETIF_F_SG)) { - netdev_info(dev, "Dropping TSO features since no SG feature.\n"); + netdev_dbg(dev, "Dropping TSO features since no SG feature.\n"); features &= ~NETIF_F_ALL_TSO; } @@ -5216,7 +5216,7 @@ u32 netdev_fix_features(struct net_device *dev, u32 features) /* Software GSO depends on SG. */ if ((features & NETIF_F_GSO) && !(features & NETIF_F_SG)) { - netdev_info(dev, "Dropping NETIF_F_GSO since no SG feature.\n"); + netdev_dbg(dev, "Dropping NETIF_F_GSO since no SG feature.\n"); features &= ~NETIF_F_GSO; } @@ -5226,13 +5226,13 @@ u32 netdev_fix_features(struct net_device *dev, u32 features) if (!((features & NETIF_F_GEN_CSUM) || (features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)) == (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) { - netdev_info(dev, + netdev_dbg(dev, "Dropping NETIF_F_UFO since no checksum offload features.\n"); features &= ~NETIF_F_UFO; } if (!(features & NETIF_F_SG)) { - netdev_info(dev, + netdev_dbg(dev, "Dropping NETIF_F_UFO since no NETIF_F_SG feature.\n"); features &= ~NETIF_F_UFO; } @@ -5414,12 +5414,6 @@ int register_netdevice(struct net_device *dev) dev->features |= NETIF_F_SOFT_FEATURES; dev->wanted_features = dev->features & dev->hw_features; - /* Avoid warning from netdev_fix_features() for GSO without SG */ - if (!(dev->wanted_features & NETIF_F_SG)) { - dev->wanted_features &= ~NETIF_F_GSO; - dev->features &= ~NETIF_F_GSO; - } - /* Enable GRO and NETIF_F_HIGHDMA for vlans by default, * vlan_dev_init() will do the dev->features check, so these features * are enabled only if supported by underlying device. diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index ce4596ed1268..bd1224fd216a 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -237,6 +237,10 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) &local->dynamic_ps_disable_work); } + /* Don't restart the timer if we're not disassociated */ + if (!ifmgd->associated) + return TX_CONTINUE; + mod_timer(&local->dynamic_ps_timer, jiffies + msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout)); diff --git a/net/netfilter/ipvs/ip_vs_app.c b/net/netfilter/ipvs/ip_vs_app.c index 51f3af7c4743..059af3120be7 100644 --- a/net/netfilter/ipvs/ip_vs_app.c +++ b/net/netfilter/ipvs/ip_vs_app.c @@ -572,7 +572,7 @@ static const struct file_operations ip_vs_app_fops = { .open = ip_vs_app_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_net, }; #endif diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c index d3fd91bbba49..bf28ac2fc99b 100644 --- a/net/netfilter/ipvs/ip_vs_conn.c +++ b/net/netfilter/ipvs/ip_vs_conn.c @@ -1046,7 +1046,7 @@ static const struct file_operations ip_vs_conn_fops = { .open = ip_vs_conn_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_net, }; static const char *ip_vs_origin_name(unsigned flags) @@ -1114,7 +1114,7 @@ static const struct file_operations ip_vs_conn_sync_fops = { .open = ip_vs_conn_sync_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_net, }; #endif diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index ea722810faf3..37890f228b19 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -2066,7 +2066,7 @@ static const struct file_operations ip_vs_info_fops = { .open = ip_vs_info_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release_private, + .release = seq_release_net, }; #endif @@ -2109,7 +2109,7 @@ static const struct file_operations ip_vs_stats_fops = { .open = ip_vs_stats_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = single_release, + .release = single_release_net, }; static int ip_vs_stats_percpu_show(struct seq_file *seq, void *v) @@ -2178,7 +2178,7 @@ static const struct file_operations ip_vs_stats_percpu_fops = { .open = ip_vs_stats_percpu_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = single_release, + .release = single_release_net, }; #endif diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index e6e7ce0d3d55..7102457661d6 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -1819,8 +1819,6 @@ static int filename_trans_read(struct policydb *p, void *fp) goto out; nel = le32_to_cpu(buf[0]); - printk(KERN_ERR "%s: nel=%d\n", __func__, nel); - last = p->filename_trans; while (last && last->next) last = last->next; @@ -1857,8 +1855,6 @@ static int filename_trans_read(struct policydb *p, void *fp) goto out; name[len] = 0; - printk(KERN_ERR "%s: ft=%p ft->name=%p ft->name=%s\n", __func__, ft, ft->name, ft->name); - rc = next_entry(buf, fp, sizeof(u32) * 4); if (rc) goto out; diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c index 2727befd158e..b04d28039c16 100644 --- a/sound/soc/codecs/ssm2602.c +++ b/sound/soc/codecs/ssm2602.c @@ -139,7 +139,7 @@ SOC_DOUBLE_R("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 31, 0), SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1), SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0), -SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 7, 1, 0), +SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0), SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1), SOC_SINGLE("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1), @@ -602,7 +602,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { .read = ssm2602_read_reg_cache, .write = ssm2602_write, .set_bias_level = ssm2602_set_bias_level, - .reg_cache_size = sizeof(ssm2602_reg), + .reg_cache_size = ARRAY_SIZE(ssm2602_reg), .reg_word_size = sizeof(u16), .reg_cache_default = ssm2602_reg, }; @@ -614,7 +614,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { * low = 0x1a * high = 0x1b */ -static int ssm2602_i2c_probe(struct i2c_client *i2c, +static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct ssm2602_priv *ssm2602; @@ -635,7 +635,7 @@ static int ssm2602_i2c_probe(struct i2c_client *i2c, return ret; } -static int ssm2602_i2c_remove(struct i2c_client *client) +static int __devexit ssm2602_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); kfree(i2c_get_clientdata(client)); @@ -655,7 +655,7 @@ static struct i2c_driver ssm2602_i2c_driver = { .owner = THIS_MODULE, }, .probe = ssm2602_i2c_probe, - .remove = ssm2602_i2c_remove, + .remove = __devexit_p(ssm2602_i2c_remove), .id_table = ssm2602_i2c_id, }; #endif diff --git a/sound/soc/codecs/uda134x.c b/sound/soc/codecs/uda134x.c index 48ffd406a71d..a7b8f301bad3 100644 --- a/sound/soc/codecs/uda134x.c +++ b/sound/soc/codecs/uda134x.c @@ -601,9 +601,7 @@ static struct snd_soc_codec_driver soc_codec_dev_uda134x = { .reg_cache_step = 1, .read = uda134x_read_reg_cache, .write = uda134x_write, -#ifdef POWER_OFF_ON_STANDBY .set_bias_level = uda134x_set_bias_level, -#endif }; static int __devinit uda134x_codec_probe(struct platform_device *pdev) diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c index f52b623bb692..824d1c8c8a35 100644 --- a/sound/soc/codecs/wm8903.c +++ b/sound/soc/codecs/wm8903.c @@ -692,7 +692,7 @@ SOC_ENUM("DRC Smoothing Threshold", drc_smoothing), SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup), SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT, - WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv), + WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv), SOC_ENUM("ADC Companding Mode", adc_companding), SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0), diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c index 419bf4f5534a..cd22a54b2f14 100644 --- a/sound/soc/jz4740/jz4740-i2s.c +++ b/sound/soc/jz4740/jz4740-i2s.c @@ -133,7 +133,7 @@ static void jz4740_i2s_shutdown(struct snd_pcm_substream *substream, struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai); uint32_t conf; - if (!dai->active) + if (dai->active) return; conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); diff --git a/sound/soc/mid-x86/sst_platform.c b/sound/soc/mid-x86/sst_platform.c index d567c322a2fb..6b1f9d3bf34e 100644 --- a/sound/soc/mid-x86/sst_platform.c +++ b/sound/soc/mid-x86/sst_platform.c @@ -376,6 +376,11 @@ static int sst_platform_pcm_hw_params(struct snd_pcm_substream *substream, return 0; } +static int sst_platform_pcm_hw_free(struct snd_pcm_substream *substream) +{ + return snd_pcm_lib_free_pages(substream); +} + static struct snd_pcm_ops sst_platform_ops = { .open = sst_platform_open, .close = sst_platform_close, @@ -384,6 +389,7 @@ static struct snd_pcm_ops sst_platform_ops = { .trigger = sst_platform_pcm_trigger, .pointer = sst_platform_pcm_pointer, .hw_params = sst_platform_pcm_hw_params, + .hw_free = sst_platform_pcm_hw_free, }; static void sst_pcm_free(struct snd_pcm *pcm) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index d8562ce4de7a..dd55d1069468 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3291,6 +3291,8 @@ int snd_soc_register_card(struct snd_soc_card *card) if (!card->name || !card->dev) return -EINVAL; + dev_set_drvdata(card->dev, card); + snd_soc_initialize_card_lists(card); soc_init_card_debugfs(card); diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 416538248a4b..0974f957b8fa 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -427,7 +427,7 @@ static void mmap_read_all(void) { int i; - for (i = 0; i < evsel_list->cpus->nr; i++) { + for (i = 0; i < evsel_list->nr_mmaps; i++) { if (evsel_list->mmap[i].base) mmap_read(&evsel_list->mmap[i]); } diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c index 11e3c8458362..2f9a337b182f 100644 --- a/tools/perf/builtin-test.c +++ b/tools/perf/builtin-test.c @@ -549,7 +549,7 @@ static int test__basic_mmap(void) ++foo; } - while ((event = perf_evlist__read_on_cpu(evlist, 0)) != NULL) { + while ((event = perf_evlist__mmap_read(evlist, 0)) != NULL) { struct perf_sample sample; if (event->header.type != PERF_RECORD_SAMPLE) { diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 7e3d6e310bf8..ebfc7cf5f63b 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -801,12 +801,12 @@ static void perf_event__process_sample(const union perf_event *event, } } -static void perf_session__mmap_read_cpu(struct perf_session *self, int cpu) +static void perf_session__mmap_read_idx(struct perf_session *self, int idx) { struct perf_sample sample; union perf_event *event; - while ((event = perf_evlist__read_on_cpu(top.evlist, cpu)) != NULL) { + while ((event = perf_evlist__mmap_read(top.evlist, idx)) != NULL) { perf_session__parse_sample(self, event, &sample); if (event->header.type == PERF_RECORD_SAMPLE) @@ -820,8 +820,8 @@ static void perf_session__mmap_read(struct perf_session *self) { int i; - for (i = 0; i < top.evlist->cpus->nr; i++) - perf_session__mmap_read_cpu(self, i); + for (i = 0; i < top.evlist->nr_mmaps; i++) + perf_session__mmap_read_idx(self, i); } static void start_counters(struct perf_evlist *evlist) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 45da8d186b49..23eb22b05d27 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -166,11 +166,11 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id) return NULL; } -union perf_event *perf_evlist__read_on_cpu(struct perf_evlist *evlist, int cpu) +union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx) { /* XXX Move this to perf.c, making it generally available */ unsigned int page_size = sysconf(_SC_PAGE_SIZE); - struct perf_mmap *md = &evlist->mmap[cpu]; + struct perf_mmap *md = &evlist->mmap[idx]; unsigned int head = perf_mmap__read_head(md); unsigned int old = md->prev; unsigned char *data = md->base + page_size; @@ -235,31 +235,37 @@ union perf_event *perf_evlist__read_on_cpu(struct perf_evlist *evlist, int cpu) void perf_evlist__munmap(struct perf_evlist *evlist) { - int cpu; + int i; - for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { - if (evlist->mmap[cpu].base != NULL) { - munmap(evlist->mmap[cpu].base, evlist->mmap_len); - evlist->mmap[cpu].base = NULL; + for (i = 0; i < evlist->nr_mmaps; i++) { + if (evlist->mmap[i].base != NULL) { + munmap(evlist->mmap[i].base, evlist->mmap_len); + evlist->mmap[i].base = NULL; } } + + free(evlist->mmap); + evlist->mmap = NULL; } int perf_evlist__alloc_mmap(struct perf_evlist *evlist) { - evlist->mmap = zalloc(evlist->cpus->nr * sizeof(struct perf_mmap)); + evlist->nr_mmaps = evlist->cpus->nr; + if (evlist->cpus->map[0] == -1) + evlist->nr_mmaps = evlist->threads->nr; + evlist->mmap = zalloc(evlist->nr_mmaps * sizeof(struct perf_mmap)); return evlist->mmap != NULL ? 0 : -ENOMEM; } static int __perf_evlist__mmap(struct perf_evlist *evlist, struct perf_evsel *evsel, - int cpu, int prot, int mask, int fd) + int idx, int prot, int mask, int fd) { - evlist->mmap[cpu].prev = 0; - evlist->mmap[cpu].mask = mask; - evlist->mmap[cpu].base = mmap(NULL, evlist->mmap_len, prot, + evlist->mmap[idx].prev = 0; + evlist->mmap[idx].mask = mask; + evlist->mmap[idx].base = mmap(NULL, evlist->mmap_len, prot, MAP_SHARED, fd, 0); - if (evlist->mmap[cpu].base == MAP_FAILED) { - if (evlist->cpus->map[cpu] == -1 && evsel->attr.inherit) + if (evlist->mmap[idx].base == MAP_FAILED) { + if (evlist->cpus->map[idx] == -1 && evsel->attr.inherit) ui__warning("Inherit is not allowed on per-task " "events using mmap.\n"); return -1; @@ -269,6 +275,86 @@ static int __perf_evlist__mmap(struct perf_evlist *evlist, struct perf_evsel *ev return 0; } +static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int mask) +{ + struct perf_evsel *evsel; + int cpu, thread; + + for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { + int output = -1; + + for (thread = 0; thread < evlist->threads->nr; thread++) { + list_for_each_entry(evsel, &evlist->entries, node) { + int fd = FD(evsel, cpu, thread); + + if (output == -1) { + output = fd; + if (__perf_evlist__mmap(evlist, evsel, cpu, + prot, mask, output) < 0) + goto out_unmap; + } else { + if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, output) != 0) + goto out_unmap; + } + + if ((evsel->attr.read_format & PERF_FORMAT_ID) && + perf_evlist__id_add_fd(evlist, evsel, cpu, thread, fd) < 0) + goto out_unmap; + } + } + } + + return 0; + +out_unmap: + for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { + if (evlist->mmap[cpu].base != NULL) { + munmap(evlist->mmap[cpu].base, evlist->mmap_len); + evlist->mmap[cpu].base = NULL; + } + } + return -1; +} + +static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot, int mask) +{ + struct perf_evsel *evsel; + int thread; + + for (thread = 0; thread < evlist->threads->nr; thread++) { + int output = -1; + + list_for_each_entry(evsel, &evlist->entries, node) { + int fd = FD(evsel, 0, thread); + + if (output == -1) { + output = fd; + if (__perf_evlist__mmap(evlist, evsel, thread, + prot, mask, output) < 0) + goto out_unmap; + } else { + if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, output) != 0) + goto out_unmap; + } + + if ((evsel->attr.read_format & PERF_FORMAT_ID) && + perf_evlist__id_add_fd(evlist, evsel, 0, thread, fd) < 0) + goto out_unmap; + } + } + + return 0; + +out_unmap: + for (thread = 0; thread < evlist->threads->nr; thread++) { + if (evlist->mmap[thread].base != NULL) { + munmap(evlist->mmap[thread].base, evlist->mmap_len); + evlist->mmap[thread].base = NULL; + } + } + return -1; +} + /** perf_evlist__mmap - Create per cpu maps to receive events * * @evlist - list of events @@ -287,11 +373,11 @@ static int __perf_evlist__mmap(struct perf_evlist *evlist, struct perf_evsel *ev int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite) { unsigned int page_size = sysconf(_SC_PAGE_SIZE); - int mask = pages * page_size - 1, cpu; - struct perf_evsel *first_evsel, *evsel; + int mask = pages * page_size - 1; + struct perf_evsel *evsel; const struct cpu_map *cpus = evlist->cpus; const struct thread_map *threads = evlist->threads; - int thread, prot = PROT_READ | (overwrite ? 0 : PROT_WRITE); + int prot = PROT_READ | (overwrite ? 0 : PROT_WRITE); if (evlist->mmap == NULL && perf_evlist__alloc_mmap(evlist) < 0) return -ENOMEM; @@ -301,43 +387,18 @@ int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite) evlist->overwrite = overwrite; evlist->mmap_len = (pages + 1) * page_size; - first_evsel = list_entry(evlist->entries.next, struct perf_evsel, node); list_for_each_entry(evsel, &evlist->entries, node) { if ((evsel->attr.read_format & PERF_FORMAT_ID) && evsel->sample_id == NULL && perf_evsel__alloc_id(evsel, cpus->nr, threads->nr) < 0) return -ENOMEM; - - for (cpu = 0; cpu < cpus->nr; cpu++) { - for (thread = 0; thread < threads->nr; thread++) { - int fd = FD(evsel, cpu, thread); - - if (evsel->idx || thread) { - if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, - FD(first_evsel, cpu, 0)) != 0) - goto out_unmap; - } else if (__perf_evlist__mmap(evlist, evsel, cpu, - prot, mask, fd) < 0) - goto out_unmap; - - if ((evsel->attr.read_format & PERF_FORMAT_ID) && - perf_evlist__id_add_fd(evlist, evsel, cpu, thread, fd) < 0) - goto out_unmap; - } - } } - return 0; + if (evlist->cpus->map[0] == -1) + return perf_evlist__mmap_per_thread(evlist, prot, mask); -out_unmap: - for (cpu = 0; cpu < cpus->nr; cpu++) { - if (evlist->mmap[cpu].base != NULL) { - munmap(evlist->mmap[cpu].base, evlist->mmap_len); - evlist->mmap[cpu].base = NULL; - } - } - return -1; + return perf_evlist__mmap_per_cpu(evlist, prot, mask); } int perf_evlist__create_maps(struct perf_evlist *evlist, pid_t target_pid, @@ -348,7 +409,7 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, pid_t target_pid, if (evlist->threads == NULL) return -1; - if (target_tid != -1) + if (cpu_list == NULL && target_tid != -1) evlist->cpus = cpu_map__dummy_new(); else evlist->cpus = cpu_map__new(cpu_list); diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 8b1cb7a4c5f1..7109d7add14e 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -17,6 +17,7 @@ struct perf_evlist { struct hlist_head heads[PERF_EVLIST__HLIST_SIZE]; int nr_entries; int nr_fds; + int nr_mmaps; int mmap_len; bool overwrite; union perf_event event_copy; @@ -46,7 +47,7 @@ void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd); struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id); -union perf_event *perf_evlist__read_on_cpu(struct perf_evlist *self, int cpu); +union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx); int perf_evlist__alloc_mmap(struct perf_evlist *evlist); int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite); diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index f5e38451fdc5..99c722672f84 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -680,7 +680,7 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist, &cpu, &sample_id_all)) return NULL; - event = perf_evlist__read_on_cpu(evlist, cpu); + event = perf_evlist__mmap_read(evlist, cpu); if (event != NULL) { struct perf_evsel *first; PyObject *pyevent = pyrf_event__new(event); |
