[PATCH] fs: remove s_old_blocksize from struct super_block

This patch inlines the single user of struct super_block field
s_old_blocksize and removes the field.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/super.c

@@ -700,8 +700,7 @@ struct super_block *get_sb_bdev(struct file_system_type *fs_type,
 
 		s->s_flags = flags;
 		strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
-		s->s_old_blocksize = block_size(bdev);
-		sb_set_blocksize(s, s->s_old_blocksize);
+		sb_set_blocksize(s, block_size(bdev));
 		error = fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
 		if (error) {
 			up_write(&s->s_umount);

include/linux/fs.h

@@ -808,7 +808,6 @@ struct super_block {
 	struct list_head	s_list;		/* Keep this first */
 	dev_t			s_dev;		/* search index; _not_ kdev_t */
 	unsigned long		s_blocksize;
-	unsigned long		s_old_blocksize;
 	unsigned char		s_blocksize_bits;
 	unsigned char		s_dirt;
 	unsigned long long	s_maxbytes;	/* Max file size */