tree 25b95e00b413025682b933da182caca2a048a475
parent d1ed6a3ea10aa7b199c434f6ffd1b6761896567a
author Gautham R Shenoy <ego@in.ibm.com> 1162799524 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1162806382 -0800

[PATCH] Fix the spurious unlock_cpu_hotplug false warnings

Cpu-hotplug locking has a minor race case caused because of setting the
variable "recursive" to NULL *after* releasing the cpu_bitmask_lock in the
function unlock_cpu_hotplug,instead of doing so before releasing the
cpu_bitmask_lock.

This was the cause of most of the recent false spurious lock_cpu_unlock
warnings.

This should fix the problem reported by Martin Lorenz reported in
http://lkml.org/lkml/2006/10/29/127.

Thanks to Srinivasa DS for pointing it out.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>