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[PATCH] workqueue: fix schedule_on_each_cpu()

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fix the schedule_on_each_cpu() implementation: __queue_work() is now
stricter, hence set the work-pending bit before passing in the new work.

(found in the -rt tree, using Peter Zijlstra's files-lock scalability
patchset)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-12-18 20:05:09 +01:00 committed by Linus Torvalds
parent 5ccac88eeb
commit 9bfb18392e
1 changed files with 5 additions and 3 deletions
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8
kernel/workqueue.c
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@ -637,9 +637,11 @@ int schedule_on_each_cpu(work_func_t func)
mutex_lock(&workqueue_mutex);
for_each_online_cpu(cpu) {
INIT_WORK(per_cpu_ptr(works, cpu), func);
__queue_work(per_cpu_ptr(keventd_wq->cpu_wq, cpu),
per_cpu_ptr(works, cpu));
struct work_struct *work = per_cpu_ptr(works, cpu);
INIT_WORK(work, func);
set_bit(WORK_STRUCT_PENDING, work_data_bits(work));
__queue_work(per_cpu_ptr(keventd_wq->cpu_wq, cpu), work);
}
mutex_unlock(&workqueue_mutex);
flush_workqueue(keventd_wq);