Messages in this thread | | | Subject | Re: [PATCH -tip] x86: atomic64: inline atomic64_read() | From | Andi Kleen <> | Date | Fri, 03 Jul 2009 20:25:45 +0200 |
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Ingo Molnar <mingo@elte.hu> writes: > > Is the same true of XADD as well? If yes then we can remove the lock > prefix from those as well - there's a few uses of that on 32-bit and > 64-bit as well.
XADD also has no implicit LOCK. AFAIK the implicit semantics are only true for XCHG.
-Andi
-- ak@linux.intel.com -- Speaking for myself only.
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