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authorLinus Torvalds <torvalds@linux-foundation.org>2015-10-15 12:58:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-10-15 12:58:37 -0700
commit995e2fe9a4904c0b83c4eead7db42f5d52b09a85 (patch)
treebfdfa9c30546ab1058ec6d76e8804b2fe483ba52 /kernel
parentcfed1e3de4764fb5b6a02c93ec246424b3bffd21 (diff)
parent874bbfe600a660cba9c776b3957b1ce393151b76 (diff)
downloadlinux-995e2fe9a4904c0b83c4eead7db42f5d52b09a85.tar.bz2
Merge branch 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fixlet from Tejun Heo: "Single patch to make delayed work always be queued on the local CPU" This is not actually something we should guarantee, but it's something we by accident have historically done, and at least one call site has grown to depend on it. I'm going to fix that known broken callsite, but in the meantime this makes the accidental behavior be explicit, just in case there are other cases that might depend on it. * 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: make sure delayed work run in local cpu
Diffstat (limited to 'kernel')
-rw-r--r--kernel/workqueue.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ca71582fcfab..bcb14cafe007 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1458,13 +1458,13 @@ static void __queue_delayed_work(int cpu, struct workqueue_struct *wq,
timer_stats_timer_set_start_info(&dwork->timer);
dwork->wq = wq;
+ /* timer isn't guaranteed to run in this cpu, record earlier */
+ if (cpu == WORK_CPU_UNBOUND)
+ cpu = raw_smp_processor_id();
dwork->cpu = cpu;
timer->expires = jiffies + delay;
- if (unlikely(cpu != WORK_CPU_UNBOUND))
- add_timer_on(timer, cpu);
- else
- add_timer(timer);
+ add_timer_on(timer, cpu);
}
/**