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authorMike Travis <travis@sgi.com>2008-04-04 18:11:08 -0700
committerIngo Molnar <mingo@elte.hu>2008-04-19 19:44:59 +0200
commitb53e921ba1cff8453dc9a87a84052fa12d5b30bd (patch)
tree021cadb6c58543ecccd95b55fc319f249ebf176e /kernel/rcupreempt.c
parentf9a86fcbbb1e5542eabf45c9144ac4b6330861a4 (diff)
generic: reduce stack pressure in sched_affinity
* Modify sched_affinity functions to pass cpumask_t variables by reference instead of by value. * Use new set_cpus_allowed_ptr function. Depends on: [sched-devel]: sched: add new set_cpus_allowed_ptr function Cc: Paul Jackson <pj@sgi.com> Cc: Cliff Wickman <cpw@sgi.com> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/rcupreempt.c')
-rw-r--r--kernel/rcupreempt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c
index e9517014b57c..e1cdf196a515 100644
--- a/kernel/rcupreempt.c
+++ b/kernel/rcupreempt.c
@@ -1007,10 +1007,10 @@ void __synchronize_sched(void)
if (sched_getaffinity(0, &oldmask) < 0)
oldmask = cpu_possible_map;
for_each_online_cpu(cpu) {
- sched_setaffinity(0, cpumask_of_cpu(cpu));
+ sched_setaffinity(0, &cpumask_of_cpu(cpu));
schedule();
}
- sched_setaffinity(0, oldmask);
+ sched_setaffinity(0, &oldmask);
}
EXPORT_SYMBOL_GPL(__synchronize_sched);