linux-ext4 - Re: [PATCH 6/5] generic: test ftruncate zeroes bytes after EOF

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Date:   Fri, 3 Feb 2023 11:57:11 +0000
From:   Johannes Thumshirn <Johannes.Thumshirn@....com>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>
CC:     "linux-afs@...ts.infradead.org" <linux-afs@...ts.infradead.org>,
        "linux-btrfs@...r.kernel.org" <linux-btrfs@...r.kernel.org>,
        "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Hugh Dickins <hughd@...gle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "fstests@...r.kernel.org" <fstests@...r.kernel.org>
Subject: Re: [PATCH 6/5] generic: test ftruncate zeroes bytes after EOF

On 02.02.23 21:45, Matthew Wilcox (Oracle) wrote:
> +	fprintf(stderr, "Truncation did not zero new bytes:\n");
> +	for (i = 0; i < 5; i++)
> +		fprintf(stderr, "%#x ", buf[i]);
> +	fputc('\n', stderr);
>

[...]

> +
> +$here/src/truncate-zero $test_file > $seqres.full 2>&1 ||
> +	_fail "truncate zero failed!"
> +
Is '_fail' really needed here? truncate-zero will spit out an error message
in case the truncation doesn't work.