Btrfs: remove unnecessary memory barrier in btrfs_sync_log()

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Mutex unlock implies certain memory barriers to make sure all the memory
operation completes before the unlock, and the next mutex lock implies memory
barriers to make sure the all the memory happens after the lock. So it is
a full memory barrier(smp_mb), we needn't add memory barriers. Remove them.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>

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Miao Xie 2014-02-20 18:08:55 +08:00 • committed by Josef Bacik

parent e87ac13687

commit 7483e1a446

1 changed files with 0 additions and 3 deletions

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fs/btrfs/tree-log.c

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