From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Goyal Subject: [PATCH 08/13] ovl: Fix ovl_getattr() to get number of blocks from lower Date: Wed, 25 Oct 2017 15:09:30 -0400 Message-ID: <1508958575-14086-9-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]:53268 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932344AbdJYTJn (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 If an inode has been copied up metadata only, then we need to query the number of blocks from lower and fill up the stat->st_blocks. Signed-off-by: Vivek Goyal --- fs/overlayfs/inode.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 1b4b42c..dcc012c 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -140,6 +140,18 @@ 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_dentry_upper(dentry) && ovl_dentry_check_upperdata(dentry) && + !ovl_test_flag(OVL_UPPERDATA, d_inode(dentry))) { + struct kstat lowerstat; + + if (WARN_ON(!OVL_TYPE_ORIGIN(type))) + goto out; + ovl_path_lower(dentry, &realpath); + err = vfs_getattr(&realpath, &lowerstat, STATX_BLOCKS, flags); + if (err) + goto out; + stat->blocks = lowerstat.blocks; + } out: revert_creds(old_cred); -- 2.5.5