Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator

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To: David Hildenbrand <david@xxxxxxxxxx>
Subject: Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon, 23 Jan 2023 06:48:23 -0800
Cc: David Howells <dhowells@xxxxxxxxxx>, Al Viro <viro@xxxxxxxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Jan Kara <jack@xxxxxxx>, Jeff Layton <jlayton@xxxxxxxxxx>, Logan Gunthorpe <logang@xxxxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxx>, John Hubbard <jhubbard@xxxxxxxxxx>, linux-mm@xxxxxxxxx
In-reply-to: <77f3fc56-05d8-def0-e518-0906c729e7df@redhat.com>

On Mon, Jan 23, 2023 at 03:20:41PM +0100, David Hildenbrand wrote:
> > The block bio code then only needs a single bit of state: pinned or not
> > pinned.
> 
> Unfortunately, I'll have to let BIO experts comment on that :) I only know
> the MM side of things here.

It can work for bios.

References:
- Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
  - From: David Hildenbrand
- Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
  - From: David Hildenbrand
- Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
  - From: David Hildenbrand
- [PATCH v7 0/8] iov_iter: Improve page extraction (ref, pin or just list)
  - From: David Howells
- [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
  - From: David Howells
- Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
  - From: David Howells
- Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
  - From: David Howells
- Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
  - From: David Howells
- Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
  - From: David Hildenbrand

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