diff options
| author | Ojaswin Mujoo <ojaswin@linux.ibm.com> | 2023-06-09 16:04:03 +0530 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-07-23 08:21:14 -0400 |
| commit | 5d5460fa7932bed3a9082a6a8852cfbdb46acbe8 (patch) | |
| tree | 505e88e2dd22fc21f5e7308de39d841aa7232a61 /lib/crypto/mpi/mpi-mod.c | |
| parent | 6909cf5c4101214f4305a62d582a5b93c7e1eb9a (diff) | |
ext4: fix off by one issue in ext4_mb_choose_next_group_best_avail()
In ext4_mb_choose_next_group_best_avail(), we want the start order to be
1 less than goal length and the min_order to be, at max, 1 more than the
original length. This commit fixes an off by one issue that arose due to
the fact that 1 << fls(n) > (n).
After all the processing:
order = 1 order below goal len
min_order = maximum of the three:-
- order - trim_order
- 1 order below B2C(s_stripe)
- 1 order above original len
Cc: stable@kernel.org
Fixes: 33122aa930 ("ext4: Add allocation criteria 1.5 (CR1_5)")
Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Link: https://lore.kernel.org/r/20230609103403.112807-1-ojaswin@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'lib/crypto/mpi/mpi-mod.c')
0 files changed, 0 insertions, 0 deletions