Commit 5dee5437 authored by Theodore Ts'o's avatar Theodore Ts'o
Browse files

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: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent 021b65bb

fs/ext4/balloc.c

+6 −5
Original line number Diff line number Diff line
@@ -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

fs/ext4/ext4.h

+1 −1
Original line number Diff line number Diff line
@@ -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,

fs/ext4/inode.c

+3 −3
Original line number Diff line number Diff line
@@ -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;

		}

fs/ext4/super.c

+4 −3
Original line number Diff line number Diff line
@@ -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,

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