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Fix: uatomic arm32: add missing release barrier before uatomic_xchg
authorMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mon, 5 Dec 2016 14:35:34 +0000 (09:35 -0500)
committerMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mon, 5 Dec 2016 23:54:05 +0000 (18:54 -0500)
commit027476ea9c652d07f892bbf9e6d350eae2a63174
tree3bf253febd51e918a470c3baf1a4296be6778be9tree | snapshot
parent8bf9d59bbd7b9b98a8223b06c800d295b8507bdfcommit | diff
Fix: uatomic arm32: add missing release barrier before uatomic_xchg

__sync_lock_test_and_set() only imply a release barrier, but
uatomic_xchg() guarantees both acquire and release barrier semantics.
Therefore, add the missing release barrier.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
urcu/uatomic/arm.h diff | blob | blame | history
Userspace RCU (urcu) for Linux
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