Re: [PATCH v3] ceph/005: verify correct statfs behaviour with quotas

[Xiubo Li <xiubli@redhat.com>]

Hi Luis,

BTW, shouldn't you update the 'tests/ceph/group.list' at the same time ?

-- Xiubo

On 6/27/22 6:26 PM, Luís Henriques wrote:
> 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>
> ---
> Changes since v2:
>   - correctly set SCRATCH_DEV, always using its original value
>
> Changes since v1 are:
>   - creation of an helper for getting total mount space using 'df'
>   - now the test sends quota size to stdout
>
>   common/rc          | 13 +++++++++++++
>   tests/ceph/005     | 39 +++++++++++++++++++++++++++++++++++++++
>   tests/ceph/005.out |  4 ++++
>   3 files changed, 56 insertions(+)
>   create mode 100755 tests/ceph/005
>   create mode 100644 tests/ceph/005.out
>
> diff --git a/common/rc b/common/rc
> index 2f31ca464621..72eabb7a428c 100644
> --- a/common/rc
> +++ b/common/rc
> @@ -4254,6 +4254,19 @@ _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
> index 000000000000..fd71d91350db
> --- /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
> index 000000000000..47798b1fcd6f
> --- /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
>