x86, idle: Add memory barriers around clflush in mwait_play_dead()

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For consistency with mwait_idle_with_hints().  Not sure they help, but
they really won't hurt...

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Len Brown <len.brown@intel.com>
Link: http://lkml.kernel.org/r/CA%2B55aFzGxcML7j8CEvQPYzh0W81uVoAAVmGctMOUZ7CZ1yYd2A@mail.gmail.com

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H. Peter Anvin 2013-12-19 12:30:03 -08:00

parent 7e98b71920

commit 7d590cca7c

1 changed files with 2 additions and 0 deletions

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arch/x86/kernel/smpboot.c

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