btrfs: update barrier in should_cow_block

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Once there was a simple int force_cow that was used with the plain
barriers, and then converted to a bit, so we should use the appropriate
barrier helper.

Other variables in the complex if condition do not depend on a barrier,
so we should be fine in case the atomic barrier becomes a no-op.

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

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David Sterba 2018-03-16 02:39:40 +01:00

parent a32bf9a302

commit d1980131ca

1 changed files with 2 additions and 2 deletions

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fs/btrfs/ctree.c

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