quota: For a link operation, do quota_check_limit only till the

common ancestor of src and dst file

In a dht_rename, if src_cached and dst_hashed are different, then
rename is split into link and unlink.
We need to handle quota_link properly.

We have fixed quota_rename in patch# 8940, we need to handle quota_link
similarly

> http://review.gluster.org/#/c/8940/
> quota: For a rename operation, do quota_check_limit only till the
> common ancestor of src and dst file

> Example:
> set quota limit set to 1GB on /
> create a file /a1/b1/file1 of 600MB
> mv /a1/b1/file1 /a1/b1/file2
> This rename fails as it takes delta into account which sums up to 1.2BG.
> Though we are not creating new file, we still get quota exceeded error.
> So quota enforce should happen only till b1.

> Similarly:
> mv /a/b/c/file /a/b/x/y/file
> quota enforce should happen only till dir 'b'

> Change-Id: Ia1e5363da876c3d71bd424e67a8bb28b7ac1c7c1
> BUG: 1153964
> Signed-off-by: vmallika <vmallika@redhat.com>
> Reviewed-on: http://review.gluster.org/8940
> Tested-by: Gluster Build System <jenkins@build.gluster.com>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Tested-by: Raghavendra G <rgowdapp@redhat.com>

Change-Id: I2c814018d17f7af1807c1d1d162d8bdcbb31e491
BUG: 1153964
Signed-off-by: vmallika <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/9419
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>

1 files changed, 83 insertions, 0 deletions

diff --git a/tests/bugs/quota/bug-1153964.t b/tests/bugs/quota/bug-1153964.t
new file mode 100644
index 00000000000..c923b71ca73
--- /dev/null
+++ b/tests/bugs/quota/bug-1153964.t
@@ -0,0 +1,83 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../nfs.rc
+
+function rename_loop()
+{
+        local i=0
+        local limit=$1
+        while [ $i -lt $limit ]
+        do
+                j=$[$i + 1]
+                mv $N0/test_dir/file$i $N0/test_dir/file$j
+                if [ "$?" != "0" ]
+                then
+                        return 1
+                fi
+                i=$[$i + 1]
+        done
+        return 0
+}
+
+function createFile_and_checkLimit()
+{
+        local count_val=$1;
+        dd if=/dev/zero of="$N0/test_dir/file0" bs=1048576 count=$count_val
+        sleep 3
+        if [ -f $N0/test_dir/file0 ]
+        then
+                rename_loop 10
+                if [ "$?" == "0" ]
+                then
+                        echo "Y"
+                else
+                        echo "N"
+                fi
+        fi
+}
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+
+TEST $CLI volume create $V0 $H0:$B0/${V0}1 $H0:$B0/${V0}2
+EXPECT 'Created' volinfo_field $V0 'Status'
+TEST $CLI volume start $V0
+EXPECT 'Started' volinfo_field $V0 'Status'
+
+TEST $CLI volume quota $V0 enable
+EXPECT 'on' volinfo_field $V0 'features.quota'
+
+EXPECT_WITHIN $NFS_EXPORT_TIMEOUT "1" is_nfs_export_available;
+TEST mount_nfs $H0:/$V0 $N0 nolock;
+TEST mkdir -p $N0/test_dir/
+
+# Try to rename file under various case and check if
+# quota limit exceeds or not.
+TEST $CLI volume quota $V0 limit-usage /test_dir 100MB
+# Case1 : If used size is less than hard-limit size
+# Create a 600MB file
+EXPECT 'Y' createFile_and_checkLimit 60
+
+TEST rm -rf $N0/test_dir/*
+# Case2 : If used size is equal to hard-limit size
+# Create a 100MB file
+EXPECT 'Y' createFile_and_checkLimit 100
+
+TEST rm -rf $N0/test_dir/*
+# Case3 : If used size is greater than hard-limit size
+# Create a 110MB file
+EXPECT 'Y' createFile_and_checkLimit 110
+
+# remove this directory as it has been created as part
+# of above testcase
+TEST rm -rf $N0/test_dir/
+
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $N0
+
+cleanup;
+
+