buffer: convert sb_getblk() to call __getblk()

Now that __getblk() is in the right place in the file, it is trivial to
call it from sb_getblk().

Link: https://lkml.kernel.org/r/20230914150011.843330-7-willy@infradead.orgSigned-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Hui Zhu <teawater@antgroup.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

include/linux/buffer_head.h

@@ -362,13 +362,12 @@ static inline struct buffer_head *__getblk(struct block_device *bdev,
 	return bdev_getblk(bdev, block, size, gfp);
 }
 
-static inline struct buffer_head *
-sb_getblk(struct super_block *sb, sector_t block)
+static inline struct buffer_head *sb_getblk(struct super_block *sb,
+		sector_t block)
 {
-	return __getblk_gfp(sb->s_bdev, block, sb->s_blocksize, __GFP_MOVABLE);
+	return __getblk(sb->s_bdev, block, sb->s_blocksize);
 }
 
-
 static inline struct buffer_head *
 sb_getblk_gfp(struct super_block *sb, sector_t block, gfp_t gfp)
 {