From: Andi Kleen <ak@suse.de>
Date: Mon, 26 Jun 2006 11:59:20 +0000 (+0200)
Subject: [PATCH] x86_64: Fix race in cpu_local_* on preemptible kernels
X-Git-Tag: v2.6.18-rc1~612^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da5311258d2afb96fc592c8b11e818facfa46dc3;p=pandora-kernel.git

[PATCH] x86_64: Fix race in cpu_local_* on preemptible kernels

When a process changes CPUs while doing the non atomic cpu_local_*
operations it might operate on the local_t of a different CPUs.

Fix that by disabling preemption.

Pointed out by Christopher Lameter

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

Reading git-diff-tree failed