From: Tejun Heo <tj@kernel.org>
Date: Tue, 29 Jun 2010 08:07:13 +0000 (+0200)
Subject: workqueue: add find_worker_executing_work() and track current_cwq
X-Git-Tag: v2.6.36-rc1~506^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8cca0eea3964b72b14e8c3f88e3a40bef7b9113e;p=pandora-kernel.git

workqueue: add find_worker_executing_work() and track current_cwq

Now that all the workers are tracked by gcwq, we can find which worker
is executing a work from gcwq.  Implement find_worker_executing_work()
and make worker track its current_cwq so that we can find things the
other way around.  This will be used to implement non-reentrant wqs.

Signed-off-by: Tejun Heo <tj@kernel.org>
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