From: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
commit 310a997fd74de778b9a4848a64be9cda9f18764a upstream.
It is never possible, that number of block groups decreases,
since only online grow is supported.
But after a growing occured, we have to zero inode tables
for just created new block groups.
Fixes: 19c5246d2516 ("ext4: add new online resize interface")
Signed-off-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Cc: stable@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -727,7 +727,7 @@ group_add_out:
if (err == 0)
err = err2;
mnt_drop_write_file(filp);
- if (!err && (o_group > EXT4_SB(sb)->s_groups_count) &&
+ if (!err && (o_group < EXT4_SB(sb)->s_groups_count) &&
ext4_has_group_desc_csum(sb) &&
test_opt(sb, INIT_INODE_TABLE))
err = ext4_register_li_request(sb, o_group);
