From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Goyal Subject: [PATCH 10/13] ovl: Return lower dentry if only metadata copy up took place Date: Wed, 25 Oct 2017 15:09:32 -0400 Message-ID: <1508958575-14086-11-git-send-email-vgoyal@redhat.com> References: <1508958575-14086-1-git-send-email-vgoyal@redhat.com> Return-path: Received: from mx1.redhat.com ([209.132.183.28]:60448 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932352AbdJYTJn (ORCPT ); Wed, 25 Oct 2017 15:09:43 -0400 In-Reply-To: <1508958575-14086-1-git-send-email-vgoyal@redhat.com> Sender: linux-unionfs-owner@vger.kernel.org List-Id: linux-unionfs@vger.kernel.org To: linux-unionfs@vger.kernel.org Cc: amir73il@gmail.com, miklos@szeredi.hu, vgoyal@redhat.com Upper dentry inode does not have data. So return lower dentry if upper is only a metadata copy. Signed-off-by: Vivek Goyal --- fs/overlayfs/super.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index 32e3d4b..4cf1f98 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -101,10 +101,15 @@ static struct dentry *ovl_d_real(struct dentry *dentry, err = ovl_check_append_only(d_inode(real), open_flags); if (err) return ERR_PTR(err); + + if (ovl_dentry_check_upperdata(dentry) && + !ovl_test_flag(OVL_UPPERDATA, d_inode(dentry))) + goto lower; } return real; } +lower: real = ovl_dentry_lower(dentry); if (!real) goto bug; -- 2.5.5