commit 14ddd82faf677f4115a9d1affcaf2ce8010dff38
author Eric Biggers <ebiggers@google.com> Wed Oct 18 20:21:57 2017 -0400
committer Jaegeuk Kim <jaegeuk@kernel.org> Fri Apr 05 11:02:58 2019 -0700
tree dad16953b946f4789f36ffec95dbff9b9ff392c0
parent ec686d286fa622b8f8aae047085dc8309ff9de38

ext4: switch to fscrypt_prepare_link()

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/namei.c

diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 56ec05c..bc67465 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -3142,9 +3142,10 @@
 
 	if (inode->i_nlink >= EXT4_LINK_MAX)
 		return -EMLINK;
-	if (ext4_encrypted_inode(dir) &&
-			!fscrypt_has_permitted_context(dir, inode))
-		return -EPERM;
+
+	err = fscrypt_prepare_link(old_dentry, dir, dentry);
+	if (err)
+		return err;
 
        if ((ext4_test_inode_flag(dir, EXT4_INODE_PROJINHERIT)) &&
 	   (!projid_eq(EXT4_I(dir)->i_projid,