Btrfs: update the comment of total_bytes and disk_total_bytes of btrfs_devie

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 0defd232e29057f0304d6b294a8eccc6290ba6f4..90d4fa80bd58c0ff4c14baf079bcabdb422cce31 100644 (file)
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -64,10 +64,10 @@ struct btrfs_device {
        /* the internal btrfs device id */
        u64 devid;
 
-       /* size of the device */
+       /* size of the device in memory */
        u64 total_bytes;
 
-       /* size of the disk */
+       /* size of the device on disk */
        u64 disk_total_bytes;
 
        /* bytes used */