diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-14 18:25:04 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-14 18:25:04 -0400 |
commit | f061d83a2b29f08b41c494335b7d23a432cb5a2d (patch) | |
tree | 4b3fe2797968491f1e18e5ef52a9d08b37a2c301 /kernel/sched.c | |
parent | e345fe1ada6f91bf703ca080168745ef18b2f037 (diff) | |
parent | e17b38bf9e70d74f3739a600db75240078ac1407 (diff) |
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Fix missing kernel-doc notation
Revert "x86, timers: Check for pending timers after (device) interrupts"
sched: Update the clock of runqueue select_task_rq() selected
Diffstat (limited to 'kernel/sched.c')
-rw-r--r-- | kernel/sched.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 8d25be06db62..e88689522e66 100644 --- a/kernel/sched.c +++ b/kernel/sched.c | |||
@@ -676,6 +676,7 @@ inline void update_rq_clock(struct rq *rq) | |||
676 | 676 | ||
677 | /** | 677 | /** |
678 | * runqueue_is_locked | 678 | * runqueue_is_locked |
679 | * @cpu: the processor in question. | ||
679 | * | 680 | * |
680 | * Returns true if the current cpu runqueue is locked. | 681 | * Returns true if the current cpu runqueue is locked. |
681 | * This interface allows printk to be called with the runqueue lock | 682 | * This interface allows printk to be called with the runqueue lock |
@@ -2311,7 +2312,7 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, | |||
2311 | { | 2312 | { |
2312 | int cpu, orig_cpu, this_cpu, success = 0; | 2313 | int cpu, orig_cpu, this_cpu, success = 0; |
2313 | unsigned long flags; | 2314 | unsigned long flags; |
2314 | struct rq *rq; | 2315 | struct rq *rq, *orig_rq; |
2315 | 2316 | ||
2316 | if (!sched_feat(SYNC_WAKEUPS)) | 2317 | if (!sched_feat(SYNC_WAKEUPS)) |
2317 | wake_flags &= ~WF_SYNC; | 2318 | wake_flags &= ~WF_SYNC; |
@@ -2319,7 +2320,7 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, | |||
2319 | this_cpu = get_cpu(); | 2320 | this_cpu = get_cpu(); |
2320 | 2321 | ||
2321 | smp_wmb(); | 2322 | smp_wmb(); |
2322 | rq = task_rq_lock(p, &flags); | 2323 | rq = orig_rq = task_rq_lock(p, &flags); |
2323 | update_rq_clock(rq); | 2324 | update_rq_clock(rq); |
2324 | if (!(p->state & state)) | 2325 | if (!(p->state & state)) |
2325 | goto out; | 2326 | goto out; |
@@ -2350,6 +2351,10 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, | |||
2350 | set_task_cpu(p, cpu); | 2351 | set_task_cpu(p, cpu); |
2351 | 2352 | ||
2352 | rq = task_rq_lock(p, &flags); | 2353 | rq = task_rq_lock(p, &flags); |
2354 | |||
2355 | if (rq != orig_rq) | ||
2356 | update_rq_clock(rq); | ||
2357 | |||
2353 | WARN_ON(p->state != TASK_WAKING); | 2358 | WARN_ON(p->state != TASK_WAKING); |
2354 | cpu = task_cpu(p); | 2359 | cpu = task_cpu(p); |
2355 | 2360 | ||
@@ -3656,6 +3661,7 @@ static void update_group_power(struct sched_domain *sd, int cpu) | |||
3656 | 3661 | ||
3657 | /** | 3662 | /** |
3658 | * update_sg_lb_stats - Update sched_group's statistics for load balancing. | 3663 | * update_sg_lb_stats - Update sched_group's statistics for load balancing. |
3664 | * @sd: The sched_domain whose statistics are to be updated. | ||
3659 | * @group: sched_group whose statistics are to be updated. | 3665 | * @group: sched_group whose statistics are to be updated. |
3660 | * @this_cpu: Cpu for which load balance is currently performed. | 3666 | * @this_cpu: Cpu for which load balance is currently performed. |
3661 | * @idle: Idle status of this_cpu | 3667 | * @idle: Idle status of this_cpu |