btrfs: add comments to barriers before waitqueue_active
authorDavid Sterba <dsterba@suse.com>
Mon, 16 Feb 2015 18:36:47 +0000 (19:36 +0100)
committerDavid Sterba <dsterba@suse.com>
Sat, 10 Oct 2015 16:40:04 +0000 (18:40 +0200)
commita83342aa0c8f0ca90057d3837ae8d198186e5153
tree723d60098638e0f048ae630399d2f77d0e1a0c9d
parent33a9eca7e4a4c2c17aebbb11f0e506a48ebc30c9
btrfs: add comments to barriers before waitqueue_active

Reduce number of undocumented barriers out there.

Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/compression.c
fs/btrfs/extent-tree.c
fs/btrfs/locking.c
fs/btrfs/ordered-data.c
fs/btrfs/transaction.c