From: Tejun Heo <tj@kernel.org>
Date: Fri, 3 Aug 2012 17:30:46 +0000 (-0700)
Subject: workqueue: reorganize try_to_grab_pending() and __cancel_timer_work()
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~52^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36e227d242f9ec7cb4a8e968561b3b26e3d8b5d1;p=pandora-kernel.git

workqueue: reorganize try_to_grab_pending() and __cancel_timer_work()

* Use bool @is_dwork instead of @timer and let try_to_grab_pending()
  use to_delayed_work() to determine the delayed_work address.

* Move timer handling from __cancel_work_timer() to
  try_to_grab_pending().

* Make try_to_grab_pending() use -EAGAIN instead of -1 for
  busy-looping and drop the ret local variable.

* Add proper function comment to try_to_grab_pending().

This makes the code a bit easier to understand and will ease further
changes.  This patch doesn't make any functional change.

v2: Use @is_dwork instead of @timer.

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