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(parent: f991b31) | patch
workqueue: use irqsafe timer for delayed_work
authorTejun Heo <tj@kernel.org>
Tue, 21 Aug 2012 20:18:24 +0000 (13:18 -0700)
committerTejun Heo <tj@kernel.org>
Tue, 21 Aug 2012 20:18:24 +0000 (13:18 -0700)
commite0aecdd874d78b7129a64b056c20e529e2c916df
tree0eacde209b1f46beb5293537c85ab8217c7023f4tree | snapshot
parentf991b318cc6627a493b0d317a565bb7c3271f36bcommit | diff
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>
include/linux/workqueue.h diff | blob | history
kernel/workqueue.c diff | blob | history
Domain: System / Kernel;