diff options
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/ntp.c | 22 | ||||
| -rw-r--r-- | kernel/time/ntp_internal.h | 4 | ||||
| -rw-r--r-- | kernel/time/sched_clock.c | 2 | ||||
| -rw-r--r-- | kernel/time/tick-sched.c | 12 | ||||
| -rw-r--r-- | kernel/time/time.c | 10 | ||||
| -rw-r--r-- | kernel/time/timekeeping.c | 13 | ||||
| -rw-r--r-- | kernel/time/timer.c | 2 |
7 files changed, 58 insertions, 7 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index 92a90014a925..ac5555e25733 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -17,6 +17,7 @@ #include <linux/mm.h> #include <linux/module.h> #include <linux/rtc.h> +#include <linux/audit.h> #include "ntp_internal.h" #include "timekeeping_internal.h" @@ -709,7 +710,7 @@ static inline void process_adjtimex_modes(const struct __kernel_timex *txc, * kernel time-keeping variables. used by xntpd. */ int __do_adjtimex(struct __kernel_timex *txc, const struct timespec64 *ts, - s32 *time_tai) + s32 *time_tai, struct audit_ntp_data *ad) { int result; @@ -720,14 +721,29 @@ int __do_adjtimex(struct __kernel_timex *txc, const struct timespec64 *ts, /* adjtime() is independent from ntp_adjtime() */ time_adjust = txc->offset; ntp_update_frequency(); + + audit_ntp_set_old(ad, AUDIT_NTP_ADJUST, save_adjust); + audit_ntp_set_new(ad, AUDIT_NTP_ADJUST, time_adjust); } txc->offset = save_adjust; } else { - /* If there are input parameters, then process them: */ - if (txc->modes) + if (txc->modes) { + audit_ntp_set_old(ad, AUDIT_NTP_OFFSET, time_offset); + audit_ntp_set_old(ad, AUDIT_NTP_FREQ, time_freq); + audit_ntp_set_old(ad, AUDIT_NTP_STATUS, time_status); + audit_ntp_set_old(ad, AUDIT_NTP_TAI, *time_tai); + audit_ntp_set_old(ad, AUDIT_NTP_TICK, tick_usec); + process_adjtimex_modes(txc, time_tai); + audit_ntp_set_new(ad, AUDIT_NTP_OFFSET, time_offset); + audit_ntp_set_new(ad, AUDIT_NTP_FREQ, time_freq); + audit_ntp_set_new(ad, AUDIT_NTP_STATUS, time_status); + audit_ntp_set_new(ad, AUDIT_NTP_TAI, *time_tai); + audit_ntp_set_new(ad, AUDIT_NTP_TICK, tick_usec); + } + txc->offset = shift_right(time_offset * NTP_INTERVAL_FREQ, NTP_SCALE_SHIFT); if (!(time_status & STA_NANO)) diff --git a/kernel/time/ntp_internal.h b/kernel/time/ntp_internal.h index 40e6122e634e..908ecaa65fc3 100644 --- a/kernel/time/ntp_internal.h +++ b/kernel/time/ntp_internal.h @@ -8,6 +8,8 @@ extern void ntp_clear(void); extern u64 ntp_tick_length(void); extern ktime_t ntp_get_next_leap(void); extern int second_overflow(time64_t secs); -extern int __do_adjtimex(struct __kernel_timex *txc, const struct timespec64 *ts, s32 *time_tai); +extern int __do_adjtimex(struct __kernel_timex *txc, + const struct timespec64 *ts, + s32 *time_tai, struct audit_ntp_data *ad); extern void __hardpps(const struct timespec64 *phase_ts, const struct timespec64 *raw_ts); #endif /* _LINUX_NTP_INTERNAL_H */ diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c index 968e4b07918e..142b07619918 100644 --- a/kernel/time/sched_clock.c +++ b/kernel/time/sched_clock.c @@ -231,7 +231,7 @@ sched_clock_register(u64 (*read)(void), int bits, unsigned long rate) if (irqtime > 0 || (irqtime == -1 && rate >= 1000000)) enable_sched_clock_irqtime(); - pr_debug("Registered %pF as sched_clock source\n", read); + pr_debug("Registered %pS as sched_clock source\n", read); } void __init generic_sched_clock_init(void) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index bdf00c763ee3..f4ee1a3428ae 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -1038,6 +1038,18 @@ bool tick_nohz_idle_got_tick(void) } /** + * tick_nohz_get_next_hrtimer - return the next expiration time for the hrtimer + * or the tick, whatever that expires first. Note that, if the tick has been + * stopped, it returns the next hrtimer. + * + * Called from power state control code with interrupts disabled + */ +ktime_t tick_nohz_get_next_hrtimer(void) +{ + return __this_cpu_read(tick_cpu_device.evtdev)->next_event; +} + +/** * tick_nohz_get_sleep_length - return the expected length of the current sleep * @delta_next: duration until the next event if the tick cannot be stopped * diff --git a/kernel/time/time.c b/kernel/time/time.c index 86656bbac232..7f7d6914ddd5 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -783,6 +783,16 @@ u64 jiffies64_to_nsecs(u64 j) } EXPORT_SYMBOL(jiffies64_to_nsecs); +u64 jiffies64_to_msecs(const u64 j) +{ +#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ) + return (MSEC_PER_SEC / HZ) * j; +#else + return div_u64(j * HZ_TO_MSEC_NUM, HZ_TO_MSEC_DEN); +#endif +} +EXPORT_SYMBOL(jiffies64_to_msecs); + /** * nsecs_to_jiffies64 - Convert nsecs in u64 to jiffies64 * diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 5716e28bfa3c..85f5912d8f70 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -21,6 +21,7 @@ #include <linux/stop_machine.h> #include <linux/pvclock_gtod.h> #include <linux/compiler.h> +#include <linux/audit.h> #include "tick-internal.h" #include "ntp_internal.h" @@ -1250,6 +1251,9 @@ out: /* signal hrtimers about time change */ clock_was_set(); + if (!ret) + audit_tk_injoffset(ts_delta); + return ret; } EXPORT_SYMBOL(do_settimeofday64); @@ -2303,6 +2307,7 @@ static int timekeeping_validate_timex(const struct __kernel_timex *txc) int do_adjtimex(struct __kernel_timex *txc) { struct timekeeper *tk = &tk_core.timekeeper; + struct audit_ntp_data ad; unsigned long flags; struct timespec64 ts; s32 orig_tai, tai; @@ -2322,15 +2327,19 @@ int do_adjtimex(struct __kernel_timex *txc) ret = timekeeping_inject_offset(&delta); if (ret) return ret; + + audit_tk_injoffset(delta); } + audit_ntp_init(&ad); + ktime_get_real_ts64(&ts); raw_spin_lock_irqsave(&timekeeper_lock, flags); write_seqcount_begin(&tk_core.seq); orig_tai = tai = tk->tai_offset; - ret = __do_adjtimex(txc, &ts, &tai); + ret = __do_adjtimex(txc, &ts, &tai, &ad); if (tai != orig_tai) { __timekeeping_set_tai_offset(tk, tai); @@ -2341,6 +2350,8 @@ int do_adjtimex(struct __kernel_timex *txc) write_seqcount_end(&tk_core.seq); raw_spin_unlock_irqrestore(&timekeeper_lock, flags); + audit_ntp_log(&ad); + /* Update the multiplier immediately if frequency was set directly */ if (txc->modes & (ADJ_FREQUENCY | ADJ_TICK)) timekeeping_advance(TK_ADV_FREQ); diff --git a/kernel/time/timer.c b/kernel/time/timer.c index a9b1bbc2d88d..343c7ba33b1c 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -1325,7 +1325,7 @@ static void call_timer_fn(struct timer_list *timer, lock_map_release(&lockdep_map); if (count != preempt_count()) { - WARN_ONCE(1, "timer: %pF preempt leak: %08x -> %08x\n", + WARN_ONCE(1, "timer: %pS preempt leak: %08x -> %08x\n", fn, count, preempt_count()); /* * Restore the preempt count. That gives us a decent |
