Commits
Boqun Feng committed 26760fc19a7
powerpc: atomic: Implement acquire/release/relaxed variants for xchg Implement xchg{,64}_relaxed and atomic{,64}_xchg_relaxed, based on these _relaxed variants, release/acquire variants and fully ordered versions can be built. Note that xchg{,64}_relaxed and atomic_{,64}_xchg_relaxed are not compiler barriers. Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>