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author | Ye Bin <yebin10@huawei.com> | 2022-09-21 09:40:40 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-26 14:25:14 +0300 |
commit | 2189756eabbb5f8366b4302183dfa3e98bfed196 (patch) | |
tree | dffefc496837b998094c0d7dca61f355f144331a /fs/ext4/fast_commit.c | |
parent | 2cfb769d60a2a57eb3566765428b6131cd16dcfe (diff) | |
download | linux-2189756eabbb5f8366b4302183dfa3e98bfed196.tar.xz |
ext4: update 'state->fc_regions_size' after successful memory allocation
commit 27cd49780381c6ccbf248798e5e8fd076200ffba upstream.
To avoid to 'state->fc_regions_size' mismatch with 'state->fc_regions'
when fail to reallocate 'fc_reqions',only update 'state->fc_regions_size'
after 'state->fc_regions' is allocated successfully.
Cc: stable@kernel.org
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220921064040.3693255-4-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ext4/fast_commit.c')
-rw-r--r-- | fs/ext4/fast_commit.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c index 44b192fdfb59..41dcf21558c4 100644 --- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -1586,14 +1586,15 @@ int ext4_fc_record_regions(struct super_block *sb, int ino, if (state->fc_regions_used == state->fc_regions_size) { struct ext4_fc_alloc_region *fc_regions; - state->fc_regions_size += - EXT4_FC_REPLAY_REALLOC_INCREMENT; fc_regions = krealloc(state->fc_regions, - state->fc_regions_size * - sizeof(struct ext4_fc_alloc_region), + sizeof(struct ext4_fc_alloc_region) * + (state->fc_regions_size + + EXT4_FC_REPLAY_REALLOC_INCREMENT), GFP_KERNEL); if (!fc_regions) return -ENOMEM; + state->fc_regions_size += + EXT4_FC_REPLAY_REALLOC_INCREMENT; state->fc_regions = fc_regions; } region = &state->fc_regions[state->fc_regions_used++]; |