quota/marker: dir_count accounting is not atomic

This is a backport of http://review.gluster.org/#/c/11694/

Consider below scenario:

Quota enabled on pre-existing data
Now quota-crawl process will start healing xattrs
Now if write is performed where healing is not complete, there is a
possibility that 'update txn' is started before 'create xattr txn', in
this case dir count can be missed on a dir where quota size xattr is not
yet created.

Solution is to get size xattr and if xattr is missing, add 1 for
dir_count, this requires one additional fop if done in marker during
each update iteration
Better solution is to us xattrop GF_XATTROP_ADD_ARRAY64_WITH_DEFAULT

> Change-Id: Idc8978860a3914e70c98f96effeff52e9a24e6ba
> BUG: 1243798
> Signed-off-by: vmallika <vmallika@redhat.com>
> Reviewed-on: http://review.gluster.org/11694
> Tested-by: NetBSD Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>

Change-Id: If553372c31093d86fabe5a2ae5044a2cff28c3dc
BUG: 1270769
Signed-off-by: vmallika <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/12341
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/tests/bugs/quota/bug-1243798.t b/tests/bugs/quota/bug-1243798.t
new file mode 100644
index 00000000000..dc53c6928ec
--- /dev/null
+++ b/tests/bugs/quota/bug-1243798.t
@@ -0,0 +1,50 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../nfs.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume info;
+
+TEST $CLI volume create $V0 $H0:$B0/$V0
+EXPECT 'Created' volinfo_field $V0 'Status';
+
+TEST $CLI volume start $V0;
+EXPECT 'Started' volinfo_field $V0 'Status';
+
+EXPECT_WITHIN $NFS_EXPORT_TIMEOUT "1" is_nfs_export_available;
+TEST mount_nfs $H0:/$V0 $N0 noac,nolock
+
+TEST mkdir -p $N0/dir1/dir2
+TEST touch $N0/dir1/dir2/file
+
+TEST $CLI volume quota $V0 enable
+TEST $CLI volume quota $V0 hard-timeout 0
+TEST $CLI volume quota $V0 soft-timeout 0
+TEST $CLI volume quota $V0 limit-objects /dir1 10
+
+TEST stat $N0/dir1/dir2/file
+
+sleep 2
+
+#Remove size and contri xattr from /dir1
+#Remove contri xattr from /dir1/dir2
+setfattr -x trusted.glusterfs.quota.size $B0/$V0/dir1
+setfattr -x trusted.glusterfs.quota.00000000-0000-0000-0000-000000000001.contri $B0/$V0/dir1
+contri=$(getfattr -d -m . -e hex $B0/$V0/dir1/dir2 | grep contri | awk -F= '{print $1}')
+setfattr -x $contri $B0/$V0/dir1/dir2
+
+#Initiate healing by writing to a file
+echo Hello > $N0/dir1/dir2/file
+
+EXPECT_WITHIN $MARKER_UPDATE_TIMEOUT "2" quota_object_list_field "/dir1" 5
+
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $N0
+TEST $CLI volume stop $V0
+EXPECT "1" get_aux
+
+cleanup;