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| author |   cpw@sgi.com <cpw@sgi.com> | 2011-06-21 07:21:26 -0500 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2011-06-21 14:50:31 +0200 |
| commit | 00b30cf04a775b5292ab704f782394e36e25617d (patch) | |
| tree | f32ed307eb07b5aca3130e99f4479ed6f4e736b5 /fs/jbd2/commit.c | |
| parent | x66, UV: Enable 64-bit ACPI MFCG support for SGI UV2 platform (diff) | |
| download | linux-rng-00b30cf04a775b5292ab704f782394e36e25617d.tar.xz linux-rng-00b30cf04a775b5292ab704f782394e36e25617d.zip | |
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 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions