linux-ext4 - Re: [PATCHv3 3/4] generic/678: Add a new shutdown recovery test

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Date:   Mon, 4 Apr 2022 09:38:45 +1000
From:   Dave Chinner <david@...morbit.com>
To:     Ritesh Harjani <ritesh.list@...il.com>
Cc:     fstests <fstests@...r.kernel.org>, linux-ext4@...r.kernel.org,
        linux-fsdevel@...r.kernel.org,
        "Darrick J . Wong" <djwong@...nel.org>,
        Ritesh Harjani <riteshh@...ux.ibm.com>
Subject: Re: [PATCHv3 3/4] generic/678: Add a new shutdown recovery test

On Thu, Mar 31, 2022 at 06:24:22PM +0530, Ritesh Harjani wrote:
> From: Ritesh Harjani <riteshh@...ux.ibm.com>
> 
> In certain cases (it is noted with ext4 fast_commit feature) that, replay phase
> may not delete the right range of blocks (after sudden FS shutdown)
> due to some operations which depends on inode->i_size (which during replay of
> an inode with fast_commit could be 0 for sometime).
> This fstest is added to test for such scenarios for all generic fs.
> 
> This test case is based on the test case shared via Xin Yin.
> 
> Signed-off-by: Ritesh Harjani <riteshh@...ux.ibm.com>
> ---
>  tests/generic/678     | 72 +++++++++++++++++++++++++++++++++++++++++++
>  tests/generic/678.out |  7 +++++
>  2 files changed, 79 insertions(+)
>  create mode 100755 tests/generic/678
>  create mode 100644 tests/generic/678.out
> 
> diff --git a/tests/generic/678 b/tests/generic/678
> new file mode 100755
> index 00000000..46a7be6c
> --- /dev/null
> +++ b/tests/generic/678
> @@ -0,0 +1,72 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2022 IBM Corporation.  All Rights Reserved.
> +#
> +# FS QA Test 678
> +#
> +# This test with ext4 fast_commit feature w/o below patch missed to delete the right
> +# range during replay phase, since it depends upon inode->i_size (which might not be
> +# stable during replay phase, at least for ext4).
> +# 0b5b5a62b945a141: ext4: use ext4_ext_remove_space() for fast commit replay delete range
> +# (Based on test case shared by Xin Yin <yinxin.x@...edance.com>)
> +#
> +
> +. ./common/preamble
> +_begin_fstest auto shutdown quick log recoveryloop
> +
> +# Override the default cleanup function.
> +_cleanup()
> +{
> +	cd /
> +	rm -r -f $tmp.*
> +}

It's the same as the default cleanup function.

Cheers,

Dave.

-- 
Dave Chinner
david@...morbit.com