ext2: remove ext2_new_block()

Now, only xattr allocate block use ext2_new_block(), so just opencode it in
the xattr code.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Message-Id: <20230815112612.221145-2-yebin10@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/ext2/balloc.c

@@ -1431,13 +1431,6 @@ ext2_fsblk_t ext2_new_blocks(struct inode *inode, ext2_fsblk_t goal,
 	return 0;
 }
 
-ext2_fsblk_t ext2_new_block(struct inode *inode, unsigned long goal, int *errp)
-{
-	unsigned long count = 1;
-
-	return ext2_new_blocks(inode, goal, &count, errp);
-}
-
 #ifdef EXT2FS_DEBUG
 
 unsigned long ext2_count_free(struct buffer_head *map, unsigned int numchars)

fs/ext2/ext2.h

@@ -695,7 +695,6 @@ static inline struct ext2_inode_info *EXT2_I(struct inode *inode)
 /* balloc.c */
 extern int ext2_bg_has_super(struct super_block *sb, int group);
 extern unsigned long ext2_bg_num_gdb(struct super_block *sb, int group);
-extern ext2_fsblk_t ext2_new_block(struct inode *, unsigned long, int *);
 extern ext2_fsblk_t ext2_new_blocks(struct inode *, unsigned long,
 				unsigned long *, int *);
 extern int ext2_data_block_valid(struct ext2_sb_info *sbi, ext2_fsblk_t start_blk,

fs/ext2/xattr.c

@@ -742,7 +742,9 @@ ext2_xattr_set2(struct inode *inode, struct buffer_head *old_bh,
 			/* We need to allocate a new block */
 			ext2_fsblk_t goal = ext2_group_first_block_no(sb,
 						EXT2_I(inode)->i_block_group);
-			ext2_fsblk_t block = ext2_new_block(inode, goal, &error);
+			unsigned long count = 1;
+			ext2_fsblk_t block = ext2_new_blocks(inode, goal,
+							     &count, &error);
 			if (error)
 				goto cleanup;
 			ea_idebug(inode, "creating block %lu", block);