On Fri, Aug 15, 2025 at 04:14:05PM +0800, Chao Yu wrote:
> This is a regression test:
> 1. create directory
> 2. add a new xattr entry to create xattr node
> 3. use inject.f2fs to inject nid of xattr node w/ ino in a file
> 4. check whether f2fs kernel module will detect and report such
>    corruption in the file
> 
> Cc: Jaegeuk Kim <jaeg...@kernel.org>
> Signed-off-by: Chao Yu <c...@kernel.org>
> ---
> v3:
> - fix mount option
> - check return value of inject.f2fs
>  tests/f2fs/020     | 51 ++++++++++++++++++++++++++++++++++++++++++++++
>  tests/f2fs/020.out |  2 ++
>  2 files changed, 53 insertions(+)
>  create mode 100755 tests/f2fs/020
>  create mode 100644 tests/f2fs/020.out
> 
> diff --git a/tests/f2fs/020 b/tests/f2fs/020
> new file mode 100755
> index 00000000..38bc6582
> --- /dev/null
> +++ b/tests/f2fs/020
> @@ -0,0 +1,51 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2025 Chao Yu.  All Rights Reserved.
> +#
> +# FS QA Test No. f2fs/020
> +#
> +# This is a regression test:
> +# 1. create directory
> +# 2. add a new xattr entry to create xattr node
> +# 3. use inject.f2fs to inject nid of xattr node w/ ino in a file
> +# 4. check whether f2fs kernel module will detect and report such
> +#    corruption in the file
> +#
> +. ./common/preamble
> +_begin_fstest auto quick rw
> +
> +. ./common/attr
> +
> +_fixed_by_kernel_commit 061cf3a84bde \
> +     "f2fs: fix to do sanity check on ino and xnid"
> +
> +_require_scratch_nocheck
> +_require_command "$F2FS_INJECT_PROG" inject.f2fs
> +_require_attrs user
> +
> +# remove all mkfs options to avoid layout change of on-disk inode
> +export MKFS_OPTIONS=""
> +
> +testdir=$SCRATCH_MNT/testdir
> +
> +_scratch_mkfs >> $seqres.full
> +_scratch_mount "-o user_xattr,noinline_xattr"
> +
> +mkdir $testdir
> +# add a new xattr entry to create xattr node
> +$SETFATTR_PROG -n user.abc -v 123 $testdir
> +
> +_scratch_unmount
> +
> +# inject i_xattr_nid w/ nid of inode node
> +$F2FS_INJECT_PROG --node --mb i_xattr_nid --nid 4 --val 4 $SCRATCH_DEV >> 
> $seqres.full || _fail "failed to inject"

If you'd like to deal with that _require_inject_f2fs_command (what ever name) 
things
in another separated patchset, this patch is good to me.

Reviewed-by: Zorro Lang <zl...@redhat.com>

> +
> +_scratch_mount "-o acl,user_xattr"
> +# may potentially trigger a deadlock w/ double inode_lock on parent's inode
> +mkdir $testdir/dir >> $seqres.full 2>&1
> +_scratch_unmount
> +
> +echo "Silence is golden"
> +
> +status=0
> +exit
> diff --git a/tests/f2fs/020.out b/tests/f2fs/020.out
> new file mode 100644
> index 00000000..20d7944e
> --- /dev/null
> +++ b/tests/f2fs/020.out
> @@ -0,0 +1,2 @@
> +QA output created by 020
> +Silence is golden
> -- 
> 2.49.0
> 



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