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(parent: 999767b) | patch
workqueue: add WARN_ON_ONCE() on CPU number to wq_worker_waking_up()
authorJoonsoo Kim <js1304@gmail.com>
Fri, 26 Oct 2012 14:03:49 +0000 (23:03 +0900)
committerTejun Heo <tj@kernel.org>
Sun, 2 Dec 2012 00:45:45 +0000 (16:45 -0800)
commit3657600040a7279e52252af3f9d7e253f4f49ef0
tree1cc95124c9108e24ee18a7d9af2e511fd735daaetree | snapshot
parent999767beb1b4a10eabf90e6017e496536cf4db0bcommit | diff
workqueue: add WARN_ON_ONCE() on CPU number to wq_worker_waking_up()

Recently, workqueue code has gone through some changes and we found
some bugs related to concurrency management operations happening on
the wrong CPU.  When a worker is concurrency managed
(!WORKER_NOT_RUNNIG), it should be bound to its associated cpu and
woken up to that cpu.  Add WARN_ON_ONCE() to verify this.

Signed-off-by: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
kernel/workqueue.c diff | blob | history
Domain: System / Kernel;