btrfs: Remove btrfs_bio::flags member

The last user of btrfs_bio::flags was removed in commit 326e1dbb5736
("block: remove management of bi_remaining when restoring original
bi_end_io"), remove it.

(Tagged for stable as the structure is heavily used and space savings
are desirable.)

CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 9b5fba4..ac4ba8c 100644 (file)
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -319,7 +319,6 @@ struct btrfs_bio {
        u64 map_type; /* get from map_lookup->type */
        bio_end_io_t *end_io;
        struct bio *orig_bio;
-       unsigned long flags;
        void *private;
        atomic_t error;
        int max_errors;