linux-kernel - Re: [PATCH v3] iov_iter: don't require contiguous pages in iov_iter_extract_bvec

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Message-ID: <ZxW76N4hU2_4Zs3E@fedora>
Date: Mon, 21 Oct 2024 10:26:48 +0800
From: Ming Lei <ming.lei@...hat.com>
To: Christoph Hellwig <hch@....de>
Cc: axboe@...nel.dk, akpm@...ux-foundation.org, viro@...iv.linux.org.uk,
	dhowells@...hat.com, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] iov_iter: don't require contiguous pages in
 iov_iter_extract_bvec_pages

On Fri, Oct 11, 2024 at 03:20:22PM +0200, Christoph Hellwig wrote:
> The iov_iter_extract_pages interface allows to return physically
> discontiguous pages, as long as all but the first and last page
> in the array are page aligned and page size.  Rewrite
> iov_iter_extract_bvec_pages to take advantage of that instead of only
> returning ranges of physically contiguous pages.
> 
> Signed-off-by: Ming Lei <ming.lei@...hat.com>
> [hch: minor cleanups, new commit log]
> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
> 
> v3:
>  - open code the iterator
>  - improve commit log and comments

Hello Jens,

Gentle ping...



thanks,
Ming