linux-kernel - Re: [PATCH v2 3/6] virtiofs: factor out more common methods for argbuf

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Date: Fri, 1 Mar 2024 15:24:57 +0100
From: Miklos Szeredi <miklos@...redi.hu>
To: Hou Tao <houtao@...weicloud.com>
Cc: linux-fsdevel@...r.kernel.org, Vivek Goyal <vgoyal@...hat.com>, 
	Stefan Hajnoczi <stefanha@...hat.com>, Bernd Schubert <bernd.schubert@...tmail.fm>, 
	"Michael S . Tsirkin" <mst@...hat.com>, Matthew Wilcox <willy@...radead.org>, 
	Benjamin Coddington <bcodding@...hat.com>, linux-kernel@...r.kernel.org, 
	virtualization@...ts.linux.dev, houtao1@...wei.com
Subject: Re: [PATCH v2 3/6] virtiofs: factor out more common methods for argbuf

On Wed, 28 Feb 2024 at 15:41, Hou Tao <houtao@...weicloud.com> wrote:
>
> From: Hou Tao <houtao1@...wei.com>
>
> Factor out more common methods for bounce buffer of fuse args:
>
> 1) virtio_fs_argbuf_setup_sg: set-up sgs for bounce buffer
> 2) virtio_fs_argbuf_copy_from_in_arg: copy each in-arg to bounce buffer
> 3) virtio_fs_argbuf_out_args_offset: calc the start offset of out-arg
> 4) virtio_fs_argbuf_copy_to_out_arg: copy bounce buffer to each out-arg
>
> These methods will be used to implement bounce buffer backed by
> scattered pages which are allocated separatedly.

Why is req->argbuf not changed to being typed?

Thanks,
Miklos