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| author | Michael S. Tsirkin <[email protected]> | 2016-01-10 11:19:38 +0000 |
|---|---|---|
| committer | Michael S. Tsirkin <[email protected]> | 2016-01-12 18:47:05 +0000 |
| commit | 779a6a36961b50cd154da5705d9e6508f819cc4e (patch) | |
| tree | e36f7c676eecb14d47d633a95e3c547d4c3f58c2 /lib/dump_stack.c | |
| parent | s390: use generic memory barriers (diff) | |
| download | kernel-779a6a36961b50cd154da5705d9e6508f819cc4e.tar.gz kernel-779a6a36961b50cd154da5705d9e6508f819cc4e.zip | |
s390: more efficient smp barriers
As per: lkml.kernel.org/r/20150921112252.3c2937e1@mschwide
atomics imply a barrier on s390, so s390 should change
smp_mb__before_atomic and smp_mb__after_atomic to barrier() instead of
smp_mb() and hence should not use the generic versions.
Suggested-by: Peter Zijlstra <[email protected]>
Suggested-by: Martin Schwidefsky <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Acked-by: Martin Schwidefsky <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Diffstat (limited to 'lib/dump_stack.c')
0 files changed, 0 insertions, 0 deletions