f2fs: test dirty status handling on database file

This is a regression testcase to check whether we will handle database
inode dirty status correctly:
1. create a regular file, and write data into the file
2. start transaction on the file (via F2FS_IOC_START_ATOMIC_WRITE)
3. write transaction data to the file
4. rename the file
5. commit and end the transaction (via F2FS_IOC_COMMIT_ATOMIC_WRITE)
6. drop caches in order to call f2fs_evict_inode()
It expects kernel panic will gone after we apply commit 03511e936916
("f2fs: fix inconsistent dirty state of atomic file").

Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Daeho Jeong <daehojeong@google.com>
Cc: Jianan Huang <huangjianan@xiaomi.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>

diff --git a/tests/f2fs/010 b/tests/f2fs/010
new file mode 100755 (executable)
index 0000000..50e3781
--- /dev/null
+++ b/tests/f2fs/010
@@ -0,0 +1,69 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2025 Chao Yu.  All Rights Reserved.
+#
+# FS QA Test No. f2fs/010
+#
+# This is a regression testcase to check whether we will handle database
+# inode dirty status correctly:
+# 1. create a regular file, and write data into the file
+# 2. start transaction on the file (via F2FS_IOC_START_ATOMIC_WRITE)
+# 3. write transaction data to the file
+# 4. rename the file
+# 5. commit and end the transaction (via F2FS_IOC_COMMIT_ATOMIC_WRITE)
+# 6. drop caches in order to call f2fs_evict_inode()
+# It expects kernel panic will gone after we apply commit 03511e936916
+# ("f2fs: fix inconsistent dirty state of atomic file").
+#
+. ./common/preamble
+_begin_fstest auto quick
+
+_cleanup()
+{
+       [ -n "$atomic_write_pid" ] && kill -9 $atomic_write_pid
+       wait
+       cd /
+       rm -r -f $tmp.*
+}
+
+_fixed_by_kernel_commit 03511e936916 \
+       "f2fs: fix inconsistent dirty state of atomic file"
+
+_require_scratch
+_require_command "$F2FS_IO_PROG" f2fs_io
+
+_scratch_mkfs >> $seqres.full
+_scratch_mount >> $seqres.full
+
+src_db=$SCRATCH_MNT/src.db
+dst_db=$SCRATCH_MNT/dst.db
+
+# initialize database file
+$XFS_IO_PROG -c "pwrite 0 4k" -c "fsync" -f $src_db >> $seqres.full
+
+# sync filesystem to clear dirty inode
+sync
+
+# start atomic_write on src.db database file and commit transaction after 3000ms
+$F2FS_IO_PROG write 1 0 0 zero atomic_commit $src_db 3000 >> $seqres.full &
+atomic_write_pid=$!
+
+# wait a moment to let atomic write starts
+sleep 1
+
+# it will dirty inode when updating i_pino
+mv $src_db $dst_db
+
+# wait for atomic_write commit completion
+sleep 4
+
+# drop caches in order to call f2fs_evict_inode()
+echo 3 > /proc/sys/vm/drop_caches
+
+wait $atomic_write_pid
+unset atomic_write_pid
+
+echo "Silence is golden"
+
+status=0
+exit

diff --git a/tests/f2fs/010.out b/tests/f2fs/010.out
new file mode 100644 (file)
index 0000000..1d83a8d
--- /dev/null
+++ b/tests/f2fs/010.out
@@ -0,0 +1,2 @@
+QA output created by 010
+Silence is golden