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powerpc/atomic: Fix atomic_cmpset_rel()

Description

powerpc/atomic: Fix atomic_cmpset_rel()

Need a release barrier, not an acquire barrier, else bad things happen.

Details

Provenance
jhibbitsAuthored on Oct 15 2019, 3:37 AM
Parents
rG63e9755548e4: (1/6) Replace busy checks with acquires where it is trival to do so.
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