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| author | cpw@sgi.com <cpw@sgi.com> | 2011-06-21 16:21:26 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-06-21 16:50:31 +0400 |
| commit | 00b30cf04a775b5292ab704f782394e36e25617d (patch) | |
| tree | f32ed307eb07b5aca3130e99f4479ed6f4e736b5 /arch/x86/include/asm | |
| parent | 6885685923ee786f26e7b170e3b961ac0fa14037 (diff) | |
| download | linux-00b30cf04a775b5292ab704f782394e36e25617d.tar.xz | |
x86, UV: Fix smp_processor_id() use in a preemptable region
Fix a call by tunables_write() to smp_processor_id() within a
preemptable region.
Call get_cpu()/put_cpu() around the region where the returned
cpu number is actually used, which makes it non-preemptable.
A DEBUG_PREEMPT warning is prevented.
UV does not support cpu hotplug yet, but this is a step toward
that ability as well.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Link: http://lkml.kernel.org/r/20110621122242.086384966@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm')
0 files changed, 0 insertions, 0 deletions