f2fs: sync f2fs_lookup() with ext4_lookup()

As for ext4, now that fscrypt_has_permitted_context() correctly handles
the case where we have the key for the parent directory but not the
child, f2fs_lookup() no longer has to work around it.  Also add the same
warning message that ext4 uses.

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

1 files changed, 4 insertions, 3 deletions

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 98f00a3a7f50..9a5b9fa55318 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -324,9 +324,10 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
         if (f2fs_encrypted_inode(dir) &&
             (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
             !fscrypt_has_permitted_context(dir, inode)) {
-                bool nokey = f2fs_encrypted_inode(inode) &&
-                        !fscrypt_has_encryption_key(inode);
-                err = nokey ? -ENOKEY : -EPERM;
+                f2fs_msg(inode->i_sb, KERN_WARNING,
+                         "Inconsistent encryption contexts: %lu/%lu",
+                         dir->i_ino, inode->i_ino);
+                err = -EPERM;
                 goto err_out;
         }
         return d_splice_alias(inode, dentry);