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authorPaul Jackson <pj@sgi.com>2005-10-30 15:03:21 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-30 17:37:28 -0800
commit4098f9918e068e51fed1727f6ba80efcec372378 (patch)
tree0495f14e29ad93c165988be49c70ec658fffd086
parent70a6a0cb92f24fd6bbe2e75299168909f735676a (diff)
downloadop-kernel-dev-4098f9918e068e51fed1727f6ba80efcec372378.zip
op-kernel-dev-4098f9918e068e51fed1727f6ba80efcec372378.tar.gz
[PATCH] sched: hardcode non-smp set_cpus_allowed
Simplify the UP (1 CPU) implementatin of set_cpus_allowed. The one CPU is hardcoded to be cpu 0 - so just test for that bit, and avoid having to pick up the cpu_online_map. Also, unexport cpu_online_map: it was only needed for set_cpus_allowed(). Signed-off-by: Paul Jackson <pj@sgi.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--include/linux/sched.h2
-rw-r--r--kernel/sched.c1
2 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b2d2dc1..41285a0 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -940,7 +940,7 @@ extern int set_cpus_allowed(task_t *p, cpumask_t new_mask);
#else
static inline int set_cpus_allowed(task_t *p, cpumask_t new_mask)
{
- if (!cpus_intersects(new_mask, cpu_online_map))
+ if (!cpu_isset(0, new_mask))
return -EINVAL;
return 0;
}
diff --git a/kernel/sched.c b/kernel/sched.c
index 4f26c54..340dd23 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3877,7 +3877,6 @@ EXPORT_SYMBOL(cpu_present_map);
#ifndef CONFIG_SMP
cpumask_t cpu_online_map = CPU_MASK_ALL;
-EXPORT_SYMBOL_GPL(cpu_online_map);
cpumask_t cpu_possible_map = CPU_MASK_ALL;
#endif
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