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| author | Davidlohr Bueso <dave@stgolabs.net> | 2020-03-22 14:03:04 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-03-22 10:06:57 -0600 |
| commit | b004aa867c48b3232835b61ed9d44b572e29498e (patch) | |
| tree | c4e27aff03ea6deada3f73eb5e36d3715d541908 /drivers/xen/dbgp.c | |
| parent | 9876e38609a8ea98bbb447eb5a8f1c0400a6ccb8 (diff) | |
bcache: optimize barrier usage for Rmw atomic bitops
We can avoid the unnecessary barrier on non LL/SC architectures,
such as x86. Instead, use the smp_mb__after_atomic().
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/xen/dbgp.c')
0 files changed, 0 insertions, 0 deletions