ext4: rename ext4_count_free_blocks() to ext4_count_free_clusters()

This function really counts the free clusters reported in the block
group descriptors, so rename it to reduce confusion.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

4 files changed, 14 insertions, 12 deletions

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 84dc3d62b40c..4f303809e076 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -524,12 +524,12 @@ ext4_fsblk_t ext4_new_meta_blocks(handle_t *handle, struct inode *inode,
 }
 
 /**
- * ext4_count_free_blocks() -- count filesystem free blocks
+ * ext4_count_free_clusters() -- count filesystem free clusters
  * @sb:         superblock
  *
- * Adds up the number of free blocks from each block group.
+ * Adds up the number of free clusters from each block group.
  */
-ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
+ext4_fsblk_t ext4_count_free_clusters(struct super_block *sb)
 {
         ext4_fsblk_t desc_count;
         struct ext4_group_desc *gdp;
@@ -562,8 +562,9 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
                 bitmap_count += x;
         }
         brelse(bitmap_bh);
-        printk(KERN_DEBUG "ext4_count_free_blocks: stored = %llu"
-                ", computed = %llu, %llu\n", ext4_free_blocks_count(es),
+        printk(KERN_DEBUG "ext4_count_free_clusters: stored = %llu"
+               ", computed = %llu, %llu\n",
+               EXT4_B2C(sbi, ext4_free_blocks_count(es)),
                desc_count, bitmap_count);
         return bitmap_count;
 #else
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index db279c362017..f6963cd7f709 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1775,7 +1775,7 @@ extern ext4_fsblk_t ext4_new_meta_blocks(handle_t *handle, struct inode *inode,
                                          int *errp);
 extern int ext4_claim_free_blocks(struct ext4_sb_info *sbi,
                                   s64 nblocks, unsigned int flags);
-extern ext4_fsblk_t ext4_count_free_blocks(struct super_block *);
+extern ext4_fsblk_t ext4_count_free_clusters(struct super_block *);
 extern void ext4_check_blocks_bitmap(struct super_block *);
 extern struct ext4_group_desc * ext4_get_group_desc(struct super_block * sb,
                                                     ext4_group_t block_group,
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index d1c17e47c1c6..f9198d7875cc 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1365,7 +1365,8 @@ static void ext4_print_free_blocks(struct inode *inode)
 {
         struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
         printk(KERN_CRIT "Total free blocks count %lld\n",
-               ext4_count_free_blocks(inode->i_sb));
+               EXT4_C2B(EXT4_SB(inode->i_sb),
+                        ext4_count_free_clusters(inode->i_sb)));
         printk(KERN_CRIT "Free/Dirty block details\n");
         printk(KERN_CRIT "free_blocks=%lld\n",
                (long long) EXT4_C2B(EXT4_SB(inode->i_sb),
@@ -1451,8 +1452,7 @@ static void mpage_da_map_and_submit(struct mpage_da_data *mpd)
                 if (err == -EAGAIN)
                         goto submit_io;
 
-                if (err == -ENOSPC &&
-                    ext4_count_free_blocks(sb)) {
+                if (err == -ENOSPC && ext4_count_free_clusters(sb)) {
                         mpd->retval = err;
                         goto submit_io;
                 }
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 30cf0e1bd89c..07f3de341452 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2153,7 +2153,8 @@ static int ext4_check_descriptors(struct super_block *sb,
         if (NULL != first_not_zeroed)
                 *first_not_zeroed = grp;
 
-        ext4_free_blocks_count_set(sbi->s_es, ext4_count_free_blocks(sb));
+        ext4_free_blocks_count_set(sbi->s_es,
+                                   EXT4_C2B(sbi, ext4_count_free_clusters(sb)));
         sbi->s_es->s_free_inodes_count =cpu_to_le32(ext4_count_free_inodes(sb));
         return 1;
 }
@@ -3577,7 +3578,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
         sbi->s_err_report.data = (unsigned long) sb;
 
         err = percpu_counter_init(&sbi->s_freeclusters_counter,
-                        ext4_count_free_blocks(sb));
+                        ext4_count_free_clusters(sb));
         if (!err) {
                 err = percpu_counter_init(&sbi->s_freeinodes_counter,
                                 ext4_count_free_inodes(sb));
@@ -3703,7 +3704,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
          * need to update the global counters.
          */
         percpu_counter_set(&sbi->s_freeclusters_counter,
-                           ext4_count_free_blocks(sb));
+                           ext4_count_free_clusters(sb));
         percpu_counter_set(&sbi->s_freeinodes_counter,
                            ext4_count_free_inodes(sb));
         percpu_counter_set(&sbi->s_dirs_counter,