From: Tejun Heo Date: Thu, 24 Jan 2013 19:01:33 +0000 (-0800) Subject: workqueue: move global_cwq->lock to worker_pool X-Git-Tag: v3.9-rc1~159^2~20 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d565ed6309300304de4a865a04adef07a85edc45;p=pandora-kernel.git workqueue: move global_cwq->lock to worker_pool Move gcwq->lock to pool->lock. The conversion is mostly straight-forward. Things worth noting are * In many places, this removes the need to use gcwq completely. pool is used directly instead. get_std_worker_pool() is added to help some of these conversions. This also leaves get_work_gcwq() without any user. Removed. * In hotplug and freezer paths, the pools belonging to a CPU are often processed together. This patch makes those paths hold locks of all pools, with highpri lock nested inside, to keep the conversion straight-forward. These nested lockings will be removed by following patches. This is part of an effort to remove global_cwq and make worker_pool the top level abstraction, which in turn will help implementing worker pools with user-specified attributes. Signed-off-by: Tejun Heo Reviewed-by: Lai Jiangshan --- Reading git-diff-tree failed