commit db44fc017d5989302713ab4e7f9e922b648f4b59
author Yong Zhang <yong.zhang0@gmail.com> Mon May 09 22:07:05 2011 +0800
committer Ingo Molnar <mingo@elte.hu> Mon May 16 11:01:18 2011 +0200
tree a6b8830b580fe5ebf7b0ff2f271c59173b15bc9b
parent 61eadef6a9bde9ea62fda724a9cb501ce9bc925a

sched: Avoid going ahead if ->cpus_allowed is not changed

If cpumask_equal(&p->cpus_allowed, new_mask) is true, seems
there is no reason to prevent set_cpus_allowed_ptr() return
directly.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Acked-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20110509140705.GA2219@zhy
Signed-off-by: Ingo Molnar <mingo@elte.hu>