From: Miklos Szeredi <miklos@szeredi.hu>
Date: Wed, 9 Dec 2015 15:11:59 +0000 (+0100)
Subject: ovl: root: copy attr
X-Git-Tag: firefly_0821_release~3308^2~12
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=7193e802960f884e0ae6c40711c4e3c70fa3b070;p=firefly-linux-kernel-4.4.55.git

ovl: root: copy attr

commit ed06e069775ad9236087594a1c1667367e983fb5 upstream.

We copy i_uid and i_gid of underlying inode into overlayfs inode.  Except
for the root inode.

Fix this omission.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index e38ee0fed24a..ff826652feae 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1053,6 +1053,9 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 
 	root_dentry->d_fsdata = oe;
 
+	ovl_copyattr(ovl_dentry_real(root_dentry)->d_inode,
+		     root_dentry->d_inode);
+
 	sb->s_magic = OVERLAYFS_SUPER_MAGIC;
 	sb->s_op = &ovl_super_operations;
 	sb->s_root = root_dentry;