btrfs: remove extra barrier before waitqueue_active

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Removing barriers is scary, but a call to atomic_dec_and_test implies
a barrier, so we don't need to issue another one.

Signed-off-by: David Sterba <dsterba@suse.com>

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David Sterba 2015-02-16 19:39:00 +01:00

parent a83342aa0c

commit 779adf0f64

1 changed files with 6 additions and 2 deletions

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fs/btrfs/tree-log.c

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