From: Mike Travis <travis@sgi.com>
Date: Wed, 17 Dec 2008 01:34:03 +0000 (-0800)
Subject: x86: Remove cpumask games in x86/kernel/cpu/intel_cacheinfo.c
X-Git-Tag: v2.6.29-rc1~538^2~21^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2bb85549134c005e997e5a7ed303bda6a1ae738;p=pandora-kernel.git

x86: Remove cpumask games in x86/kernel/cpu/intel_cacheinfo.c

Impact: remove cpumask_t from stack.

We should not try to save and restore cpus_allowed on current.

We can't use work_on_cpu() here, since it's in the hotplug cpu path
(if anyone else tries to get the hotplug lock from a workqueue we
could deadlock against them).

Fortunately, we can just use smp_call_function_single() since the
function can run from an interrupt.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
---

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