ext4: rename ext4_free_blocks_after_init() to ext4_free_clusters_after_init()

This function really returns the number of clusters after initializing
an uninitalized block bitmap has been initialized.
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>

fs/ext4/balloc.c

@@ -213,9 +213,9 @@ void ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
 /* Return the number of free blocks in a block group.  It is used when
  * the block bitmap is uninitialized, so we can't just count the bits
  * in the bitmap. */
-unsigned ext4_free_blocks_after_init(struct super_block *sb,
-				     ext4_group_t block_group,
-				     struct ext4_group_desc *gdp)
+unsigned ext4_free_clusters_after_init(struct super_block *sb,
+				       ext4_group_t block_group,
+				       struct ext4_group_desc *gdp)
 {
 	return num_clusters_in_group(sb, block_group) - 
 		ext4_num_overhead_clusters(sb, block_group, gdp);

fs/ext4/ext4.h

@@ -1787,9 +1787,9 @@ extern void ext4_init_block_bitmap(struct super_block *sb,
 				   struct buffer_head *bh,
 				   ext4_group_t group,
 				   struct ext4_group_desc *desc);
-extern unsigned ext4_free_blocks_after_init(struct super_block *sb,
-					    ext4_group_t block_group,
-					    struct ext4_group_desc *gdp);
+extern unsigned ext4_free_clusters_after_init(struct super_block *sb,
+					      ext4_group_t block_group,
+					      struct ext4_group_desc *gdp);
 extern unsigned ext4_num_base_meta_clusters(struct super_block *sb,
 					    ext4_group_t block_group);
 extern unsigned ext4_num_overhead_clusters(struct super_block *sb,

fs/ext4/ialloc.c

@@ -961,7 +961,7 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, int mode,
 		if (gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
 			gdp->bg_flags &= cpu_to_le16(~EXT4_BG_BLOCK_UNINIT);
 			ext4_free_group_clusters_set(sb, gdp,
-				ext4_free_blocks_after_init(sb, group, gdp));
+				ext4_free_clusters_after_init(sb, group, gdp));
 			gdp->bg_checksum = ext4_group_desc_csum(sbi, group,
 								gdp);
 		}

fs/ext4/mballoc.c

@@ -2253,7 +2253,7 @@ int ext4_mb_add_groupinfo(struct super_block *sb, ext4_group_t group,
 	 */
 	if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
 		meta_group_info[i]->bb_free =
-			ext4_free_blocks_after_init(sb, group, desc);
+			ext4_free_clusters_after_init(sb, group, desc);
 	} else {
 		meta_group_info[i]->bb_free =
 			ext4_free_group_clusters(sb, desc);
@@ -2840,7 +2840,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
 	if (gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
 		gdp->bg_flags &= cpu_to_le16(~EXT4_BG_BLOCK_UNINIT);
 		ext4_free_group_clusters_set(sb, gdp,
-					     ext4_free_blocks_after_init(sb,
+					     ext4_free_clusters_after_init(sb,
 						ac->ac_b_ex.fe_group, gdp));
 	}
 	len = ext4_free_group_clusters(sb, gdp) - ac->ac_b_ex.fe_len;