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btrfs: update barrier in should_cow_block
authorDavid Sterba <dsterba@suse.com>
Fri, 16 Mar 2018 01:39:40 +0000 (02:39 +0100)
committerDavid Sterba <dsterba@suse.com>
Sat, 31 Mar 2018 00:01:06 +0000 (02:01 +0200)
commitd1980131ca7f0776542f776ceb777cd01eb983e2
tree0fae91ad3ab13a05c9075ab410e0414b736a73d9tree | snapshot
parenta32bf9a30201f13097428a3327c7c67f678c760ccommit | diff
btrfs: update barrier in should_cow_block

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>
fs/btrfs/ctree.c diff | blob | blame | history
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