diff options
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/Kconfig | 12 | ||||
| -rw-r--r-- | arch/ia64/include/asm/switch_to.h | 8 | ||||
| -rw-r--r-- | arch/ia64/kernel/time.c | 4 |
3 files changed, 3 insertions, 21 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 310cf5781fad..3c720ef6c32d 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -25,6 +25,7 @@ config IA64 select HAVE_GENERIC_HARDIRQS select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP + select HAVE_VIRT_CPU_ACCOUNTING select ARCH_DISCARD_MEMBLOCK select GENERIC_IRQ_PROBE select GENERIC_PENDING_IRQ if SMP @@ -340,17 +341,6 @@ config FORCE_MAX_ZONEORDER default "17" if HUGETLB_PAGE default "11" -config VIRT_CPU_ACCOUNTING - bool "Deterministic task and CPU time accounting" - default n - help - Select this option to enable more accurate task and CPU time - accounting. This is done by reading a CPU counter on each - kernel entry and exit and on transitions within the kernel - between system, softirq and hardirq state, so there is a - small performance impact. - If in doubt, say N here. - config SMP bool "Symmetric multi-processing support" select USE_GENERIC_SMP_HELPERS diff --git a/arch/ia64/include/asm/switch_to.h b/arch/ia64/include/asm/switch_to.h index cb2412fcd17f..d38c7ea5eea5 100644 --- a/arch/ia64/include/asm/switch_to.h +++ b/arch/ia64/include/asm/switch_to.h @@ -30,13 +30,6 @@ extern struct task_struct *ia64_switch_to (void *next_task); extern void ia64_save_extra (struct task_struct *task); extern void ia64_load_extra (struct task_struct *task); -#ifdef CONFIG_VIRT_CPU_ACCOUNTING -extern void ia64_account_on_switch (struct task_struct *prev, struct task_struct *next); -# define IA64_ACCOUNT_ON_SWITCH(p,n) ia64_account_on_switch(p,n) -#else -# define IA64_ACCOUNT_ON_SWITCH(p,n) -#endif - #ifdef CONFIG_PERFMON DECLARE_PER_CPU(unsigned long, pfm_syst_info); # define PERFMON_IS_SYSWIDE() (__get_cpu_var(pfm_syst_info) & 0x1) @@ -49,7 +42,6 @@ extern void ia64_account_on_switch (struct task_struct *prev, struct task_struct || PERFMON_IS_SYSWIDE()) #define __switch_to(prev,next,last) do { \ - IA64_ACCOUNT_ON_SWITCH(prev, next); \ if (IA64_HAS_EXTRA_STATE(prev)) \ ia64_save_extra(prev); \ if (IA64_HAS_EXTRA_STATE(next)) \ diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index ecc904b33c5f..6247197b9877 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -88,10 +88,10 @@ extern cputime_t cycle_to_cputime(u64 cyc); * accumulated times to the current process, and to prepare accounting on * the next process. */ -void ia64_account_on_switch(struct task_struct *prev, struct task_struct *next) +void account_switch_vtime(struct task_struct *prev) { struct thread_info *pi = task_thread_info(prev); - struct thread_info *ni = task_thread_info(next); + struct thread_info *ni = task_thread_info(current); cputime_t delta_stime, delta_utime; __u64 now; |
