From: Andrew Morton <akpm@osdl.org>
Date: Mon, 14 Aug 2006 06:24:26 +0000 (-0700)
Subject: [PATCH] workqueue: remove lock_cpu_hotplug()
X-Git-Tag: v2.6.18-rc5~85
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b41ea7289a589993d3daabc61f999b4147872c4;p=pandora-kernel.git

[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>
---

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