ext4: fix incorrect offset

The last argument of ext4_check_dir_entry is dentry offset int the
file.  Luckily this error only results in the wrong offset being
printed in the eventual error message.

Signed-off-by: Wang Jianjian <wangjianjian0@foxmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/tencent_F992989953734FD5DE3F88ECB2191A856206@qq.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index bbda587f76b85ab0a6840c4cf19b45151ea3f26b..cbe756144d8df9203eeb45b960a53c7b53311595 100644 (file)
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2280,8 +2280,7 @@ static int make_indexed_dir(handle_t *handle, struct ext4_filename *fname,
        top = data2 + len;
        while ((char *)(de2 = ext4_next_entry(de, blocksize)) < top) {
                if (ext4_check_dir_entry(dir, NULL, de, bh2, data2, len,
-                                        (data2 + (blocksize - csum_size) -
-                                         (char *) de))) {
+                                       (char *)de - data2)) {
                        brelse(bh2);
                        brelse(bh);
                        return -EFSCORRUPTED;