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ext4: convert number of blocks to clusters properly

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We're using macro EXT4_B2C() to convert number of blocks to number of
clusters for bigalloc file systems.  However, we should be using
EXT4_NUM_B2C().

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
This commit is contained in:
Lukas Czerner 2013-03-02 17:18:58 -05:00 committed by Theodore Ts'o
parent 3e36a16375
commit 810da240f2
4 changed files with 9 additions and 9 deletions
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2
fs/ext4/balloc.c
View File

@ -635,7 +635,7 @@ ext4_fsblk_t ext4_count_free_clusters(struct super_block *sb)
brelse(bitmap_bh);
printk(KERN_DEBUG "ext4_count_free_clusters: stored = %llu"
", computed = %llu, %llu\n",
EXT4_B2C(EXT4_SB(sb), ext4_free_blocks_count(es)),
EXT4_NUM_B2C(EXT4_SB(sb), ext4_free_blocks_count(es)),
desc_count, bitmap_count);
return bitmap_count;
#else

8
fs/ext4/mballoc.c
View File

@ -3419,7 +3419,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
win = offs;
ac->ac_b_ex.fe_logical = ac->ac_o_ex.fe_logical -
EXT4_B2C(sbi, win);
EXT4_NUM_B2C(sbi, win);
BUG_ON(ac->ac_o_ex.fe_logical < ac->ac_b_ex.fe_logical);
BUG_ON(ac->ac_o_ex.fe_len > ac->ac_b_ex.fe_len);
}
@ -4565,7 +4565,7 @@ do_more:
EXT4_BLOCKS_PER_GROUP(sb);
count -= overflow;
}
count_clusters = EXT4_B2C(sbi, count);
count_clusters = EXT4_NUM_B2C(sbi, count);
bitmap_bh = ext4_read_block_bitmap(sb, block_group);
if (!bitmap_bh) {
err = -EIO;
@ -4807,11 +4807,11 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
ext4_group_desc_csum_set(sb, block_group, desc);
ext4_unlock_group(sb, block_group);
percpu_counter_add(&sbi->s_freeclusters_counter,
EXT4_B2C(sbi, blocks_freed));
EXT4_NUM_B2C(sbi, blocks_freed));
if (sbi->s_log_groups_per_flex) {
ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
atomic_add(EXT4_B2C(sbi, blocks_freed),
atomic_add(EXT4_NUM_B2C(sbi, blocks_freed),
&sbi->s_flex_groups[flex_group].free_clusters);
}

6
fs/ext4/resize.c
View File

@ -1247,7 +1247,7 @@ static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb,
ext4_inode_table_set(sb, gdp, group_data->inode_table);
ext4_free_group_clusters_set(sb, gdp,
EXT4_B2C(sbi, group_data->free_blocks_count));
EXT4_NUM_B2C(sbi, group_data->free_blocks_count));
ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
if (ext4_has_group_desc_csum(sb))
ext4_itable_unused_set(sb, gdp,
@ -1349,7 +1349,7 @@ static void ext4_update_super(struct super_block *sb,
/* Update the free space counts */
percpu_counter_add(&sbi->s_freeclusters_counter,
EXT4_B2C(sbi, free_blocks));
EXT4_NUM_B2C(sbi, free_blocks));
percpu_counter_add(&sbi->s_freeinodes_counter,
EXT4_INODES_PER_GROUP(sb) * flex_gd->count);
@ -1360,7 +1360,7 @@ static void ext4_update_super(struct super_block *sb,
sbi->s_log_groups_per_flex) {
ext4_group_t flex_group;
flex_group = ext4_flex_group(sbi, group_data[0].group);
atomic_add(EXT4_B2C(sbi, free_blocks),
atomic_add(EXT4_NUM_B2C(sbi, free_blocks),
&sbi->s_flex_groups[flex_group].free_clusters);
atomic_add(EXT4_INODES_PER_GROUP(sb) * flex_gd->count,
&sbi->s_flex_groups[flex_group].free_inodes);

2
fs/ext4/super.c
View File

@ -3162,7 +3162,7 @@ int ext4_calculate_overhead(struct super_block *sb)
}
/* Add the journal blocks as well */
if (sbi->s_journal)
overhead += EXT4_B2C(sbi, sbi->s_journal->j_maxlen);
overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_maxlen);
sbi->s_overhead = overhead;
smp_wmb();