linux-ext4 - Re: [RFC PATCH 11/18] iomap: add a fs private parameter to iomap

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Message-ID: <ZV9xgAXbJMCJqWvt@infradead.org>
Date: Thu, 23 Nov 2023 07:36:32 -0800
From: Christoph Hellwig <hch@...radead.org>
To: Zhang Yi <yi.zhang@...weicloud.com>
Cc: linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	tytso@....edu, adilger.kernel@...ger.ca, jack@...e.cz,
	ritesh.list@...il.com, hch@...radead.org, djwong@...nel.org,
	yi.zhang@...wei.com, chengzhihao1@...wei.com, yukuai3@...wei.com
Subject: Re: [RFC PATCH 11/18] iomap: add a fs private parameter to
 iomap_ioend

On Thu, Nov 23, 2023 at 08:51:13PM +0800, Zhang Yi wrote:
> From: Zhang Yi <yi.zhang@...wei.com>
> 
> Add a private parameter to iomap_ioend structure, letting filesystems
> can pass something they needed from .prepare_ioend() to IO end.

On it's own this looks fine.  Note that I have a series that I probably
should send out ASAP:

   http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/iomap-map-multiple-blocks

that makes each ioend only have the embdeed bio, and bi_private in that
is unused, so you could just use that if we go down that route.