[PATCH] ext4: fix incorrect type issue during replay_del_range

From: Xin Yin
Date: Wed Jan 26 2022 - 01:32:14 EST


should not use fast commit log data directly, add le32_to_cpu().

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Fixes: 0b5b5a62b945 ("ext4: use ext4_ext_remove_space() for fast commit replay delete range")
Signed-off-by: Xin Yin <yinxin.x@xxxxxxxxxxxxx>
---
fs/ext4/fast_commit.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index ccd2b216d6ba..488347b4c8b0 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1798,8 +1798,9 @@ ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl,
}

down_write(&EXT4_I(inode)->i_data_sem);
- ret = ext4_ext_remove_space(inode, lrange.fc_lblk,
- lrange.fc_lblk + lrange.fc_len - 1);
+ ret = ext4_ext_remove_space(inode, le32_to_cpu(lrange.fc_lblk),
+ le32_to_cpu(lrange.fc_lblk) +
+ le32_to_cpu(lrange.fc_len) - 1);
up_write(&EXT4_I(inode)->i_data_sem);
if (ret) {
iput(inode);
--
2.25.1