ext4 crypto: teach ext4_htree_store_dirent() to store decrypted filenames

For encrypted directories, we need to pass in a separate parameter for
the decrypted filename, since the directory entry contains the
encrypted filename.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 8b64d71..661f0b8 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -1327,6 +1327,7 @@
 	struct ext4_iloc iloc;
 	void *dir_buf = NULL;
 	struct ext4_dir_entry_2 fake;
+	struct ext4_str tmp_str;
 
 	ret = ext4_get_inode_loc(inode, &iloc);
 	if (ret)
@@ -1398,8 +1399,10 @@
 			continue;
 		if (de->inode == 0)
 			continue;
-		err = ext4_htree_store_dirent(dir_file,
-				   hinfo->hash, hinfo->minor_hash, de);
+		tmp_str.name = de->name;
+		tmp_str.len = de->name_len;
+		err = ext4_htree_store_dirent(dir_file, hinfo->hash,
+					      hinfo->minor_hash, de, &tmp_str);
 		if (err) {
 			count = err;
 			goto out;