btrfs: delete unused member from superblock

 __bdev' has never been used since
 0b86a832a1f38abec695864ec2eaedc9d2383f1b (2008).

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

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 9768ce804265b7f95d3f17c8215b2478a6299d3a..2cf4bc84388e37e52bc74a9361765b761271816e 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -799,7 +799,6 @@ struct btrfs_fs_info {
        spinlock_t super_lock;
        struct btrfs_super_block *super_copy;
        struct btrfs_super_block *super_for_commit;
-       struct block_device *__bdev;
        struct super_block *sb;
        struct inode *btree_inode;
        struct backing_dev_info bdi;