From: Tejun Heo <tj@kernel.org>
Date: Tue, 21 Aug 2012 20:18:24 +0000 (-0700)
Subject: workqueue: use irqsafe timer for delayed_work
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~52^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0aecdd874d78b7129a64b056c20e529e2c916df;p=pandora-kernel.git

workqueue: use irqsafe timer for delayed_work

Up to now, for delayed_works, try_to_grab_pending() couldn't be used
from IRQ handlers because IRQs may happen while
delayed_work_timer_fn() is in progress leading to indefinite -EAGAIN.

This patch makes delayed_work use the new TIMER_IRQSAFE flag for
delayed_work->timer.  This makes try_to_grab_pending() and thus
mod_delayed_work_on() safe to call from IRQ handlers.

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

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