tree 0eacde209b1f46beb5293537c85ab8217c7023f4
parent f991b318cc6627a493b0d317a565bb7c3271f36b
author Tejun Heo <tj@kernel.org> 1345580304 -0700
committer Tejun Heo <tj@kernel.org> 1345580304 -0700

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>