| commit | 8b03ae3cde59af9facab7c831b4141515d5dbcc8 | [log] [tgz] |
|---|---|---|
| author | Tejun Heo <tj@kernel.org> | Tue Jun 29 10:07:12 2010 +0200 |
| committer | Tejun Heo <tj@kernel.org> | Tue Jun 29 10:07:12 2010 +0200 |
| tree | 900829ac17fa941e9819208489081e4de1218ac4 | |
| parent | a0a1a5fd4fb15ec61117c759fe9f5c16c53d9e9c [diff] |
workqueue: introduce global cwq and unify cwq locks There is one gcwq (global cwq) per each cpu and all cwqs on an cpu point to it. A gcwq contains a lock to be used by all cwqs on the cpu and an ida to give IDs to workers belonging to the cpu. This patch introduces gcwq, moves worker_ida into gcwq and make all cwqs on the same cpu use the cpu's gcwq->lock instead of separate locks. gcwq->ida is now protected by gcwq->lock too. Signed-off-by: Tejun Heo <tj@kernel.org>