commit 3657600040a7279e52252af3f9d7e253f4f49ef0
author Joonsoo Kim <js1304@gmail.com> Fri Oct 26 23:03:49 2012 +0900
committer Tejun Heo <tj@kernel.org> Sat Dec 01 16:45:45 2012 -0800
tree 1cc95124c9108e24ee18a7d9af2e511fd735daae
parent 999767beb1b4a10eabf90e6017e496536cf4db0b

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>