ext4: convert number of blocks to clusters properly
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
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 6540ebe..7bb713a 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3419,7 +3419,7 @@
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 @@
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 @@
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);
}