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| author | Will Deacon <will.deacon@arm.com> | 2015-05-29 14:47:59 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-07-27 15:28:52 +0100 |
| commit | 4e39715f4b5cb3b44576fedb2d38aca87de3cf48 (patch) | |
| tree | 1e4c60ef5714188ba60fe309c7feada21dcff076 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 0bc671d3f4bee9c31110d096ada0de52380e693d (diff) | |
arm64: cmpxchg: avoid memory barrier on comparison failure
cmpxchg doesn't require memory barrier semantics when the value
comparison fails, so make the barrier conditional on success.
Reviewed-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions