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| author | Yong Zhang <yong.zhang0@gmail.com> | 2011-07-28 11:16:00 +0800 |
|---|---|---|
| committer | Clark Williams <williams@redhat.com> | 2012-02-15 10:32:49 -0600 |
| commit | 103215078a333a3d51bf46d1396f62f5d3affbce (patch) | |
| tree | e665963ba3d267cc57ddbda5e3b36d4f55904135 /kernel/rtmutex-debug.c | |
| parent | 11c56cbe5ed371dd9a3e8f45a27b4d5ae3fd8d96 (diff) | |
hotplug: Reread hotplug_pcp on pin_current_cpu() retry
When retry happens, it's likely that the task has been migrated to
another cpu (except unplug failed), but it still derefernces the
original hotplug_pcp per cpu data.
Update the pointer to hotplug_pcp in the retry path, so it points to
the current cpu.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20110728031600.GA338@windriver.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/rtmutex-debug.c')
0 files changed, 0 insertions, 0 deletions