xfs: test quota's project ID on special files

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@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Zorro Lang <zlang@kernel.org>

diff --git a/tests/xfs/648 b/tests/xfs/648
new file mode 100755 (executable)
index 0000000..215c809
--- /dev/null
+++ b/tests/xfs/648
@@ -0,0 +1,73 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2025 Red Hat.  All Rights Reserved.
+#
+# FS QA Test No. 648
+#
+# Test that XFS can set quota project ID on special files
+#
+. ./common/preamble
+_begin_fstest auto quota
+
+# Import common functions.
+. ./common/quota
+. ./common/filter
+
+# Modify as appropriate.
+_require_scratch
+_require_xfs_quota
+_require_test_program "af_unix"
+_require_test_program "file_attr"
+_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" $SCRATCH_DEV | _filter_project_quota
+$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" $SCRATCH_DEV | _filter_project_quota
+$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/648.out b/tests/xfs/648.out
new file mode 100644 (file)
index 0000000..641d8f0
--- /dev/null
+++ b/tests/xfs/648.out
@@ -0,0 +1,15 @@
+QA output created by 648
+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).
+#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).
+#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).