void
ext2_check_inodes_bitmap ()
{
int i;
struct ext2_group_desc *gdp;
unsigned long desc_count, bitmap_count, x;
pthread_spin_lock (&global_lock);
desc_count = 0;
bitmap_count = 0;
gdp = NULL;
for (i = 0; i < groups_count; i++)
{
void *bh;
gdp = group_desc (i);
desc_count += gdp->bg_free_inodes_count;
bh = disk_cache_block_ref (gdp->bg_inode_bitmap);
x = count_free (bh, sblock->s_inodes_per_group / 8);
disk_cache_block_deref (bh);
if (gdp->bg_free_inodes_count != x)
ext2_error ("wrong free inodes count in group %d, "
"stored = %d, counted = %lu",
i, gdp->bg_free_inodes_count, x);
bitmap_count += x;
}
if (sblock->s_free_inodes_count != bitmap_count)
ext2_error ("wrong free inodes count in super block, "
"stored = %lu, counted = %lu",
(unsigned long) sblock->s_free_inodes_count, bitmap_count);
pthread_spin_unlock (&global_lock);
}
unsigned long minix_count_free_inodes(struct super_block *sb)
{
struct minix_sb_info *sbi = minix_sb(sb);
u32 bits = sbi->s_ninodes + 1;
return count_free(sbi->s_imap, sb->s_blocksize, bits);
}
unsigned long
ext2_count_free_inodes ()
{
#ifdef EXT2FS_DEBUG
unsigned long desc_count, bitmap_count, x;
struct ext2_group_desc *gdp;
int i;
pthread_spin_lock (&global_lock);
desc_count = 0;
bitmap_count = 0;
gdp = NULL;
for (i = 0; i < groups_count; i++)
{
void *bh;
gdp = group_desc (i);
desc_count += gdp->bg_free_inodes_count;
bh = disk_cache_block_ref (gdp->bg_inode_bitmap);
x = count_free (bh, sblock->s_inodes_per_group / 8);
disk_cache_block_deref (bh);
ext2_debug ("group %d: stored = %d, counted = %lu",
i, gdp->bg_free_inodes_count, x);
bitmap_count += x;
}
ext2_debug ("stored = %u, computed = %lu, %lu",
sblock->s_free_inodes_count, desc_count, bitmap_count);
pthread_spin_unlock (&global_lock);
return desc_count;
#else
return sblock->s_free_inodes_count;
#endif
}
unsigned long minix_count_free_blocks(struct super_block *sb)
{
struct minix_sb_info *sbi = minix_sb(sb);
u32 bits = sbi->s_nzones - (sbi->s_firstdatazone + 1);
return (count_free(sbi->s_zmap, sb->s_blocksize, bits)
<< sbi->s_log_zone_size);
}
unsigned long
minixfs_count_free_inodes ()
{
unsigned long bitmap_count;
/*spin_lock (&global_lock);*/
bitmap_count = count_free (bptr (I_MAP_BOFFS),
sblock->s_imap_blocks << log2_block_size);
/*spin_unlock (&global_lock);*/
return bitmap_count;
}
unsigned long minix_count_free_blocks(struct minix_sb_info *sbi) {
u32 bits = sbi->s_nzones - sbi->s_firstdatazone + 1;
return (count_free(sbi->s_zmap,sbi->s_blocksize,bits)
<< sbi->s_log_zone_size);
}
/**
* wufs_count_free_blocks: (utility function)
* Count the number of zeros in the block bitmap.
* We start at bit zero.
*/
unsigned long wufs_count_free_blocks(struct wufs_sb_info *sbi)
{
/* count the number of bits that are zero in the bmap */
return count_free(sbi->sbi_bmap, sbi->sbi_bmap_bcnt);
}
/**
* wufs_count_free_inodes: (utility function)
* Count the number of zeros in the inode bitmap.
* We start at bit index 0 (corresponding to inode 1).
*/
unsigned long wufs_count_free_inodes(struct wufs_sb_info *sbi)
{
return count_free(sbi->sbi_imap, sbi->sbi_imap_bcnt);
}