From 7cccd80b4397699902aced1ad3d692d384aaab77 Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Wed, 23 Jan 2013 21:45:48 +0000
Subject: [PATCH] slub: tid must be retrieved from the percpu area of the
 current processor

As Steven Rostedt has pointer out: rescheduling could occur on a
different processor after the determination of the per cpu pointer and
before the tid is retrieved. This could result in allocation from the
wrong node in slab_alloc().

The effect is much more severe in slab_free() where we could free to the
freelist of the wrong page.

The window for something like that occurring is pretty small but it is
possible.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---
Reading git-format-patch failed