From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Goyal Subject: [PATCH 7/7] ovl: Fix ovl_getattr() to get size from lower Date: Mon, 2 Oct 2017 09:40:05 -0400 Message-ID: <1506951605-31440-8-git-send-email-vgoyal@redhat.com> References: <1506951605-31440-1-git-send-email-vgoyal@redhat.com> Return-path: Received: from mx1.redhat.com ([209.132.183.28]:59972 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750957AbdJBNkP (ORCPT ); Mon, 2 Oct 2017 09:40:15 -0400 In-Reply-To: <1506951605-31440-1-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 If an inode has been copied up metadata only, then we need to query the size from lower and fill up the stat->size. Signed-off-by: Vivek Goyal --- fs/overlayfs/inode.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index e5825b8948e0..1b676deacc2d 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -140,6 +140,16 @@ int ovl_getattr(const struct path *path, struct kstat *stat, if (!is_dir && ovl_test_flag(OVL_INDEX, d_inode(dentry))) stat->nlink = dentry->d_inode->i_nlink; + if (ovl_test_flag(OVL_METACOPY, d_inode(dentry))) { + struct kstat lowerstat; + u32 lowermask = STATX_SIZE; + + ovl_path_lower(dentry, &realpath); + err = vfs_getattr(&realpath, &lowerstat, lowermask, flags); + if (err) + goto out; + stat->size = lowerstat.size; + } out: revert_creds(old_cred); -- 2.13.5