linux-kernel - Re: [PATCH v5 4/9] xfs: convert delayed extents to unwritten when zeroing post eof blocks

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Date: Thu, 25 Apr 2024 05:22:34 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Zhang Yi <yi.zhang@...weicloud.com>
Cc: linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, djwong@...nel.org, hch@...radead.org,
	brauner@...nel.org, david@...morbit.com, chandanbabu@...nel.org,
	tytso@....edu, jack@...e.cz, yi.zhang@...wei.com,
	chengzhihao1@...wei.com, yukuai3@...wei.com
Subject: Re: [PATCH v5 4/9] xfs: convert delayed extents to unwritten when
 zeroing post eof blocks

On Tue, Apr 23, 2024 at 07:17:35PM +0800, Zhang Yi wrote:
> +	if ((flags & IOMAP_ZERO) && imap.br_startoff <= offset_fsb &&
> +	    isnullstartblock(imap.br_startblock)) {
> +		xfs_fileoff_t eof_fsb = XFS_B_TO_FSB(mp, XFS_ISIZE(ip));
> +
> +		if (offset_fsb >= eof_fsb)
> +			goto convert_delay;
> +		if (end_fsb > eof_fsb) {
> +			end_fsb = eof_fsb;
> +			xfs_trim_extent(&imap, offset_fsb, end_fsb - offset_fsb);

Nit: overly long line here.

I've also tried to to a more comprehensive review, but this depends on
the rest of the series, which isn't in my linux-xfs folder for April.

I've your're not doing and instant revision it's usually much easier to
just review the whole series.