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authorMike Travis <travis@sgi.com>2008-07-08 15:55:48 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-18 18:46:58 +0200
commit8df185a95c9b84fc0c3c02224e64fdc5b83bae34 (patch)
treedd53306fbec26ca7da24494b2844622363dc8bb3
parent8b95d9172be7146c87e7a998310ce2919c851adc (diff)
kthread: reduce stack pressure in create_kthread and kthreadd
* Replace: set_cpus_allowed(..., CPU_MASK_ALL) with: set_cpus_allowed_ptr(..., CPU_MASK_ALL_PTR) to remove excessive stack requirements when NR_CPUS=4096. Signed-off-by: Mike Travis <travis@sgi.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/kthread.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/kthread.c b/kernel/kthread.c
index ac3fb7326641..6111c27491b1 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -106,7 +106,7 @@ static void create_kthread(struct kthread_create_info *create)
*/
sched_setscheduler(create->result, SCHED_NORMAL, &param);
set_user_nice(create->result, KTHREAD_NICE_LEVEL);
- set_cpus_allowed(create->result, CPU_MASK_ALL);
+ set_cpus_allowed_ptr(create->result, CPU_MASK_ALL_PTR);
}
complete(&create->done);
}
@@ -233,7 +233,7 @@ int kthreadd(void *unused)
set_task_comm(tsk, "kthreadd");
ignore_signals(tsk);
set_user_nice(tsk, KTHREAD_NICE_LEVEL);
- set_cpus_allowed(tsk, CPU_MASK_ALL);
+ set_cpus_allowed_ptr(tsk, CPU_MASK_ALL_PTR);
current->flags |= PF_NOFREEZE | PF_FREEZER_NOSIG;