From: Li Zefan <lizf@cn.fujitsu.com>
Date: Thu, 8 Jan 2009 02:08:43 +0000 (-0800)
Subject: cpuset: don't allocate trial cpuset on stack
X-Git-Tag: v2.6.29-rc1~82
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=645fcc9d2f6946f97a41c8d00edee38f8a6f0060;p=pandora-kernel.git

cpuset: don't allocate trial cpuset on stack

Impact: cleanups, reduce stack usage

This patch prepares for the next patch.  When we convert
cpuset.cpus_allowed to cpumask_var_t, (trialcs = *cs) no longer works.

Another result of this patch is reducing stack usage of trialcs.
sizeof(*cs) can be as large as 148 bytes on x86_64, so it's really not
good to have it on stack.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Mike Travis <travis@sgi.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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