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authorPeter Zijlstra <[email protected]>2015-03-26 17:45:37 +0100
committerIngo Molnar <[email protected]>2015-03-27 09:42:01 +0100
commit7bd3e239d6c6d1cad276e8f130b386df4234dcd7 (patch)
tree260eb35894afb72ab32e860f37960b2dd6114e12 /tools/perf/scripts/python/syscall-counts.py
parente6beaa363d56d7fc2f8cd6f7291e4d93911a428a (diff)
locking: Remove atomicy checks from {READ,WRITE}_ONCE
The fact that volatile allows for atomic load/stores is a special case not a requirement for {READ,WRITE}_ONCE(). Their primary purpose is to force the compiler to emit load/stores _once_. Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Acked-by: Christian Borntraeger <[email protected]> Acked-by: Will Deacon <[email protected]> Acked-by: Linus Torvalds <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Paul McKenney <[email protected]> Cc: Stephen Rothwell <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
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