glusterd/quota: Heal pgfid xattr on existing data when the quota is

enable

        Backport of: http://review.gluster.org/8878

The pgfid extended attributes are used to construct the ancestry path
(from the file to the volume root) for nameless lookups on files.
As NFS relies on nameless lookups heavily, quota enforcement through NFS
would be inconsistent if quota were to be enabled on a volume with
existing data.

Solution is to heal the pgfid extended attributes as a part of lookup
perfomed by quota-crawl process. In a posix lookup check for pgfid xattr
and if it is missing set the xattr.

Change-Id: I956128907aa1d975cd5719ed3ab2f4f9b37d4c31
BUG: 1153900
Signed-off-by: vmallika <vmallika@redhat.com>
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/8938
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/tests/basic/quota-anon-fd-nfs.t b/tests/basic/quota-anon-fd-nfs.t
new file mode 100755
index 00000000000..c0af918beb4
--- /dev/null
+++ b/tests/basic/quota-anon-fd-nfs.t
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume info;
+
+TEST $CLI volume create $V0 $H0:$B0/brick1;
+EXPECT 'Created' volinfo_field $V0 'Status';
+
+TEST $CLI volume set $V0 network.inode-lru-limit 1
+
+TEST $CLI volume start $V0;
+EXPECT 'Started' volinfo_field $V0 'Status';
+
+TEST mount -t nfs localhost:/$V0 $N0
+sleep 10
+deep=/0/1/2/3/4/5/6/7/8/9
+TEST mkdir -p $N0/$deep
+
+TEST dd if=/dev/zero of=$N0/$deep/file bs=1K count=1M
+
+TEST $CLI volume quota $V0 enable
+TEST $CLI volume quota $V0 limit-usage / 2GB
+TEST $CLI volume quota $V0 soft-timeout 0
+
+sleep 10
+TEST dd if=/dev/zero of=$N0/$deep/newfile_1 bs=500 count=1M
+TEST ! dd if=/dev/zero of=$N0/$deep/newfile_2 bs=1000 count=1M
+
+cleanup;