btrfs: add comment about BTRFS_FS_EXCL_OP

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Adds comments about BTRFS_FS_EXCL_OP to existing comments
about the device locks.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ minor updates ]
Signed-off-by: David Sterba <dsterba@suse.com>

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Anand Jain 2018-04-18 14:59:25 +08:00 • committed by David Sterba

parent 41d0bd3b5e

commit 89595e80de

1 changed files with 35 additions and 0 deletions

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fs/btrfs/volumes.c

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