From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx3-rdu2.redhat.com ([66.187.233.73]:47928 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752494AbeEGRlM (ORCPT ); Mon, 7 May 2018 13:41:12 -0400 From: Vivek Goyal Subject: [PATCH v15 18/30] ovl: Do not expose metacopy only dentry from d_real() Date: Mon, 7 May 2018 13:40:50 -0400 Message-Id: <20180507174102.24086-19-vgoyal@redhat.com> In-Reply-To: <20180507174102.24086-1-vgoyal@redhat.com> References: <20180507174102.24086-1-vgoyal@redhat.com> Sender: linux-unionfs-owner@vger.kernel.org To: linux-unionfs@vger.kernel.org Cc: miklos@szeredi.hu, amir73il@gmail.com, vgoyal@redhat.com List-ID: Metacopy dentry/inode is internal to overlay and is never exposed outside of it. Modify d_real() to look for only dentries/inode which have data and which are not metacopy. Signed-off-by: Vivek Goyal --- fs/overlayfs/super.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index ce90b6e3ce76..c97b5abda954 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -101,10 +101,11 @@ static struct dentry *ovl_d_real(struct dentry *dentry, } real = ovl_dentry_upper(dentry); - if (real && (!inode || inode == d_inode(real))) + if (real && ovl_has_upperdata(d_inode(dentry)) && + (!inode || inode == d_inode(real))) return real; - real = ovl_dentry_lower(dentry); + real = ovl_dentry_lowerdata(dentry); if (!real) goto bug; -- 2.13.6