tree 35a79670ca4493832f1da026a047e3fc9eec0910
parent 2b25742556b1a351ce4821f6feddcba23bdd930b
author Andrew Morton <akpm@osdl.org> 1155536666 -0700
committer Greg Kroah-Hartman <gregkh@suse.de> 1155585269 -0700

[PATCH] workqueue: remove lock_cpu_hotplug()

Use a private lock instead.  It protects all per-cpu data structures in
workqueue.c, including the workqueues list.

Fix a bug in schedule_on_each_cpu(): it was forgetting to lock down the
per-cpu resources.

Unfixed long-standing bug: if someone unplugs the CPU identified by
`singlethread_cpu' the kernel will get very sick.

Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>