Re: [PATCH 3/3] xfs: test quota's project ID on special files

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On Fri, Aug 08, 2025 at 09:31:58PM +0200, Andrey Albershteyn wrote:
> From: Andrey Albershteyn <aalbersh@xxxxxxxxxx>
> 
> With addition of file_getattr() and file_setattr(), xfs_quota now can
> set project ID on filesystem inodes behind special files. Previously,
> quota reporting didn't count inodes of special files created before
> project initialization. Only new inodes had project ID set.
> 
> Signed-off-by: Andrey Albershteyn <aalbersh@xxxxxxxxxx>
> ---
>  tests/xfs/2000     | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  tests/xfs/2000.out | 17 ++++++++++++
>  2 files changed, 94 insertions(+)
> 
> diff --git a/tests/xfs/2000 b/tests/xfs/2000
> new file mode 100755
> index 000000000000..26a0093c1da1
> --- /dev/null
> +++ b/tests/xfs/2000
> @@ -0,0 +1,77 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2024 Red Hat.  All Rights Reserved.
> +#
> +# FS QA Test No. 2000
> +#
> +# Test that XFS can set quota project ID on special files
> +#
> +. ./common/preamble
> +_begin_fstest auto quota
> +
> +# Import common functions.
> +. ./common/quota
> +. ./common/filter
> +
> +_wants_kernel_commit xxxxxxxxxxx \
> +	"xfs: allow setting file attributes on special files"
> +_wants_git_commit xfsprogs xxxxxxxxxxx \
> +	"xfs_quota: utilize file_setattr to set prjid on special files"

These syscalls aren't going to be backported to old kernels, so I think
these two tests are going to need a _require_file_getattr to skip them.

--D

> +
> +# Modify as appropriate.
> +_require_scratch
> +_require_xfs_quota
> +_require_test_program "af_unix"
> +_require_symlinks
> +_require_mknod
> +
> +_scratch_mkfs >>$seqres.full 2>&1
> +_qmount_option "pquota"
> +_scratch_mount
> +
> +create_af_unix () {
> +	$here/src/af_unix $* || echo af_unix failed
> +}
> +
> +filter_quota() {
> +	_filter_quota | sed "s~$tmp.projects~PROJECTS_FILE~"
> +}
> +
> +projectdir=$SCRATCH_MNT/prj
> +id=42
> +
> +mkdir $projectdir
> +mkfifo $projectdir/fifo
> +mknod $projectdir/chardev c 1 1
> +mknod $projectdir/blockdev b 1 1
> +create_af_unix $projectdir/socket
> +touch $projectdir/foo
> +ln -s $projectdir/foo $projectdir/symlink
> +touch $projectdir/bar
> +ln -s $projectdir/bar $projectdir/broken-symlink
> +rm -f $projectdir/bar
> +
> +$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid -x \
> +	-c "project -sp $projectdir $id" $SCRATCH_DEV | filter_quota
> +$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid -x \
> +	-c "limit -p isoft=20 ihard=20 $id " $SCRATCH_DEV | filter_quota
> +$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid -x \
> +	-c "project -cp $projectdir $id" $SCRATCH_DEV | filter_quota
> +$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid -x \
> +	-c "report -inN -p" $SCRATCH_DEV
> +$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid -x \
> +	-c "project -Cp $projectdir $id" $SCRATCH_DEV | filter_quota
> +
> +# Let's check that we can recreate the project (flags were cleared out)
> +$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid -x \
> +	-c "project -sp $projectdir $id" $SCRATCH_DEV | filter_quota
> +$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid -x \
> +	-c "limit -p isoft=20 ihard=20 $id " $SCRATCH_DEV | filter_quota
> +$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid -x \
> +	-c "report -inN -p" $SCRATCH_DEV
> +$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid -x \
> +	-c "project -Cp $projectdir $id" $SCRATCH_DEV | filter_quota
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/xfs/2000.out b/tests/xfs/2000.out
> new file mode 100644
> index 000000000000..dd3918f1376d
> --- /dev/null
> +++ b/tests/xfs/2000.out
> @@ -0,0 +1,17 @@
> +QA output created by 2000
> +Setting up project 42 (path SCRATCH_MNT/prj)...
> +Processed 1 (PROJECTS_FILE and cmdline) paths for project 42 with recursion depth infinite (-1).
> +Checking project 42 (path SCRATCH_MNT/prj)...
> +Processed 1 (PROJECTS_FILE and cmdline) paths for project 42 with recursion depth infinite (-1).
> +#0                   3          0          0     00 [--------]
> +#42                  8         20         20     00 [--------]
> +
> +Clearing project 42 (path SCRATCH_MNT/prj)...
> +Processed 1 (PROJECTS_FILE and cmdline) paths for project 42 with recursion depth infinite (-1).
> +Setting up project 42 (path SCRATCH_MNT/prj)...
> +Processed 1 (PROJECTS_FILE and cmdline) paths for project 42 with recursion depth infinite (-1).
> +#0                   3          0          0     00 [--------]
> +#42                  8         20         20     00 [--------]
> +
> +Clearing project 42 (path SCRATCH_MNT/prj)...
> +Processed 1 (PROJECTS_FILE and cmdline) paths for project 42 with recursion depth infinite (-1).
> 
> -- 
> 2.49.0
> 
> 




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