From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Tue, 7 Mar 2017 19:22:45 +0000 (-0800)
Subject: f2fs: don't allow to get pino when filename is encrypted
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4f1bca9f0db3dc82297092eafdb95f58ecef5d7a;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

f2fs: don't allow to get pino when filename is encrypted

After renaming an encrypted file, we have no way to get its
encrypted filename from its dentry.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 6d120a5b8f4b..3212dfa1a50e 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -110,6 +110,9 @@ static int get_parent_ino(struct inode *inode, nid_t *pino)
 {
 	struct dentry *dentry;
 
+	if (file_enc_name(inode))
+		return 0;
+
 	inode = igrab(inode);
 	dentry = d_find_any_alias(inode);
 	iput(inode);