From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 24 Nov 2008 16:05:11 +0000 (+1030)
Subject: sched: convert sys_sched_getaffinity() to cpumask_var_t.
X-Git-Tag: v2.6.29-rc1~538^2~43
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f17c860760927c2a8e41a021eab3317e4415e962;p=pandora-kernel.git

sched: convert sys_sched_getaffinity() to cpumask_var_t.

Impact: stack usage reduction

Dynamically allocating cpumasks (when CONFIG_CPUMASK_OFFSTACK) saves
space in the stack.  cpumask_var_t is just a struct cpumask for
!CONFIG_CPUMASK_OFFSTACK.

Some jiggling here to make sure we always exit at the bottom (so we hit
the free_cpumask_var there).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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