super: remove bd_fsfreeze_sb

Remove bd_fsfreeze_sb as it's now unused and can be removed. Also move
bd_fsfreeze_count down to not have it weirdly placed in the middle of
the holder fields.

Link: https://lore.kernel.org/r/20231024-vfs-super-freeze-v2-7-599c19f4faac@kernel.org
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Suggested-by: Jan Kara <jack@suse.cz>
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 88e1848b0869410fa1b15f2c655f6a01eedd4fea..749203277feed35ce1421198cd0a969f0f3a51b3 100644 (file)
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -56,14 +56,11 @@ struct block_device {
        void *                  bd_holder;
        const struct blk_holder_ops *bd_holder_ops;
        struct mutex            bd_holder_lock;
-       /* The counter of freeze processes */
-       atomic_t                bd_fsfreeze_count;
        int                     bd_holders;
        struct kobject          *bd_holder_dir;
 
-       /* Mutex for freeze */
-       struct mutex            bd_fsfreeze_mutex;
-       struct super_block      *bd_fsfreeze_sb;
+       atomic_t                bd_fsfreeze_count; /* number of freeze requests */
+       struct mutex            bd_fsfreeze_mutex; /* serialize freeze/thaw */
 
        struct partition_meta_info *bd_meta_info;
 #ifdef CONFIG_FAIL_MAKE_REQUEST