ceph/005: verify correct statfs behaviour with quotas

When using a directory with 'max_bytes' quota as a base for a mount,
statfs shall use that 'max_bytes' value as the total disk size.  That
value shall be used even when using subdirectory as base for the mount.

A bug was found where, when this subdirectory also had a 'max_files'
quota, the real filesystem size would be returned instead of the parent
'max_bytes' quota value.  This test case verifies this bug is fixed.

Signed-off-by: Luís Henriques <lhenriques@suse.de>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>

diff --git a/common/rc b/common/rc
index 3c072c16f0cabd285622436f1e21d86b0a47f4a2..918026b55d8c52c5944a503d20fed8ad45ef4213 100644 (file)
--- a/common/rc
+++ b/common/rc
@@ -4277,6 +4277,19 @@ _get_available_space()
        echo $((avail_kb * 1024))
 }
 
+# get the total space in bytes
+#
+_get_total_space()
+{
+       if [ -z "$1" ]; then
+               echo "Usage: _get_total_space <mnt>"
+               exit 1
+       fi
+       local total_kb;
+       total_kb=`$DF_PROG $1 | tail -n1 | awk '{ print $3 }'`
+       echo $(($total_kb * 1024))
+}
+
 # return device size in kb
 _get_device_size()
 {

diff --git a/tests/ceph/005 b/tests/ceph/005
new file mode 100755 (executable)
index 0000000..fd71d91
--- /dev/null
+++ b/tests/ceph/005
@@ -0,0 +1,39 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2022 SUSE Linux Products GmbH. All Rights Reserved.
+#
+# FS QA Test 005
+#
+# Make sure statfs reports correct total size when:
+# 1. using a directory with 'max_byte' quota as base for a mount
+# 2. using a subdirectory of the above directory with 'max_files' quota
+#
+. ./common/preamble
+_begin_fstest auto quick quota
+
+_supported_fs ceph
+_require_scratch
+
+_scratch_mount
+mkdir -p "$SCRATCH_MNT/quota-dir/subdir"
+
+# set quota
+quota=$((2 ** 30)) # 1G 
+$SETFATTR_PROG -n ceph.quota.max_bytes -v "$quota" "$SCRATCH_MNT/quota-dir"
+$SETFATTR_PROG -n ceph.quota.max_files -v "$quota" "$SCRATCH_MNT/quota-dir/subdir"
+_scratch_unmount
+
+SCRATCH_DEV_ORIG="$SCRATCH_DEV"
+SCRATCH_DEV="$SCRATCH_DEV/quota-dir" _scratch_mount
+echo ceph quota size is $(_get_total_space "$SCRATCH_MNT") bytes
+SCRATCH_DEV="$SCRATCH_DEV_ORIG/quota-dir" _scratch_unmount
+
+SCRATCH_DEV="$SCRATCH_DEV_ORIG/quota-dir/subdir" _scratch_mount
+echo subdir ceph quota size is $(_get_total_space "$SCRATCH_MNT") bytes
+SCRATCH_DEV="$SCRATCH_DEV_ORIG/quota-dir/subdir" _scratch_unmount
+
+echo "Silence is golden"
+
+# success, all done
+status=0
+exit

diff --git a/tests/ceph/005.out b/tests/ceph/005.out
new file mode 100644 (file)
index 0000000..47798b1
--- /dev/null
+++ b/tests/ceph/005.out
@@ -0,0 +1,4 @@
+QA output created by 005
+ceph quota size is 1073741824 bytes
+subdir ceph quota size is 1073741824 bytes
+Silence is golden