x86, perfcounters: add atomic64_xchg()

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Complete atomic64_t support on the 32-bit side by adding atomic64_xch().

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20090406094518.445450972@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Ingo Molnar 2009-04-07 11:30:17 +02:00

parent 6278af660f

commit 98c2aaf8be

1 changed files with 21 additions and 3 deletions

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arch/x86/include/asm/atomic_32.h

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