From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 8 Dec 2009 20:24:16 +0000 (+0000)
Subject: sched: Protect task->cpus_allowed access in sched_getaffinity()
X-Git-Tag: v2.6.33-rc1~298^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3160568371da441b7f2fb57f2f1225404207e8f2;p=pandora-kernel.git

sched: Protect task->cpus_allowed access in sched_getaffinity()

sched_getaffinity() is not protected against a concurrent
modification of the tasks affinity.

Serialize the access with task_rq_lock(task).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20091208202026.769251187@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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