diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2014-02-16 03:42:25 (GMT) |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2014-02-16 03:42:25 (GMT) |
| commit | 3d2660d0c9c2f296837078c189b68a47f6b2e3b5 (patch) | |
| tree | 752dc9c0515f3c35d77ebccc0cc68e03813d5c1f /fs/bio.c | |
| parent | b93c95353413041a8cebad915a8109619f66bcc6 (diff) | |
| download | linux-3d2660d0c9c2f296837078c189b68a47f6b2e3b5.tar.xz | |
ext4: fix online resize with a non-standard blocks per group setting
The set_flexbg_block_bitmap() function assumed that the number of
blocks in a blockgroup was sb->blocksize * 8, which is normally true,
but not always! Use EXT4_BLOCKS_PER_GROUP(sb) instead, to fix block
bitmap corruption after:
mke2fs -t ext4 -g 3072 -i 4096 /dev/vdd 1G
mount -t ext4 /dev/vdd /vdd
resize2fs /dev/vdd 8G
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Jon Bernard <jbernard@tuxion.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'fs/bio.c')
0 files changed, 0 insertions, 0 deletions