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(parent: b87ac02) | patch
powerpc/64s: Avoid a branch for ppc_msgsnd
authorNicholas Piggin <npiggin@gmail.com>
Thu, 13 Apr 2017 10:16:23 +0000 (20:16 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 13 Apr 2017 13:34:34 +0000 (23:34 +1000)
commita5adf282461fb6048973ca3aec590495bdbc33f1
tree6669b7ef6c5613c8cb70f02c478885f234594a65tree | snapshot (tar.gz zip)
parentb87ac0218355a83abb899a0022bb2e5252879fc0commit | diff
powerpc/64s: Avoid a branch for ppc_msgsnd

IPIs are a pretty hot path and we already have the ability to do asm feature
patching, so use it.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Change log detail]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/include/asm/dbell.h diff | blob | blame | history