diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-03 14:56:24 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-03 14:56:24 -0500 |
commit | 61420f59a589c0668f70cbe725785837c78ece90 (patch) | |
tree | 79ae77d731cd2425677b9527d50079d8cf34c3b2 /kernel/time/tick-sched.c | |
parent | d97106ab53f812910a62d18afb9dbe882819c1ba (diff) | |
parent | c742b31c03f37c5c499178f09f57381aa6c70131 (diff) |
Merge branch 'cputime' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'cputime' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[PATCH] fast vdso implementation for CLOCK_THREAD_CPUTIME_ID
[PATCH] improve idle cputime accounting
[PATCH] improve precision of idle time detection.
[PATCH] improve precision of process accounting.
[PATCH] idle cputime accounting
[PATCH] fix scaled & unscaled cputime accounting
Diffstat (limited to 'kernel/time/tick-sched.c')
-rw-r--r-- | kernel/time/tick-sched.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 76a574bbef97..1b6c05bd0d0a 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c | |||
@@ -419,7 +419,9 @@ void tick_nohz_restart_sched_tick(void) | |||
419 | { | 419 | { |
420 | int cpu = smp_processor_id(); | 420 | int cpu = smp_processor_id(); |
421 | struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu); | 421 | struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu); |
422 | #ifndef CONFIG_VIRT_CPU_ACCOUNTING | ||
422 | unsigned long ticks; | 423 | unsigned long ticks; |
424 | #endif | ||
423 | ktime_t now; | 425 | ktime_t now; |
424 | 426 | ||
425 | local_irq_disable(); | 427 | local_irq_disable(); |
@@ -441,6 +443,7 @@ void tick_nohz_restart_sched_tick(void) | |||
441 | tick_do_update_jiffies64(now); | 443 | tick_do_update_jiffies64(now); |
442 | cpumask_clear_cpu(cpu, nohz_cpu_mask); | 444 | cpumask_clear_cpu(cpu, nohz_cpu_mask); |
443 | 445 | ||
446 | #ifndef CONFIG_VIRT_CPU_ACCOUNTING | ||
444 | /* | 447 | /* |
445 | * We stopped the tick in idle. Update process times would miss the | 448 | * We stopped the tick in idle. Update process times would miss the |
446 | * time we slept as update_process_times does only a 1 tick | 449 | * time we slept as update_process_times does only a 1 tick |
@@ -450,12 +453,9 @@ void tick_nohz_restart_sched_tick(void) | |||
450 | /* | 453 | /* |
451 | * We might be one off. Do not randomly account a huge number of ticks! | 454 | * We might be one off. Do not randomly account a huge number of ticks! |
452 | */ | 455 | */ |
453 | if (ticks && ticks < LONG_MAX) { | 456 | if (ticks && ticks < LONG_MAX) |
454 | add_preempt_count(HARDIRQ_OFFSET); | 457 | account_idle_ticks(ticks); |
455 | account_system_time(current, HARDIRQ_OFFSET, | 458 | #endif |
456 | jiffies_to_cputime(ticks)); | ||
457 | sub_preempt_count(HARDIRQ_OFFSET); | ||
458 | } | ||
459 | 459 | ||
460 | touch_softlockup_watchdog(); | 460 | touch_softlockup_watchdog(); |
461 | /* | 461 | /* |