From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-block-owner@vger.kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id 48CB1C004D4
	for <linux-block@archiver.kernel.org>; Sat, 21 Jan 2023 13:02:06 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S229587AbjAUNCF (ORCPT <rfc822;linux-block@archiver.kernel.org>);
        Sat, 21 Jan 2023 08:02:05 -0500
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39124 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S229637AbjAUNCE (ORCPT
        <rfc822;linux-block@vger.kernel.org>);
        Sat, 21 Jan 2023 08:02:04 -0500
Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3FF5045BC0;
        Sat, 21 Jan 2023 05:02:00 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
        d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version
        :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To:
        Content-Transfer-Encoding:Content-ID:Content-Description;
        bh=bSqkdWNrhXGmD0jHYMr6yrjNBEEMS7JWF4lt5X1qaA8=; b=SlEUdr73tw6Z/9uZG+bDiUCma4
        7fNSPS+6DMCcJao04RMkCPNvKkDJWf/xOG2NWATITIrW8dP+giZS74ObBiGFGajoalmxQrizqOiAO
        cT3nZTvda6LDgiZqRQcC4o+0uoGw/7Hlwh2PC/1SVFdw3HiWw4NQA8SxHzagVmsLaaou+JM3wq/a6
        74Zrn8NIXmdvuendNC4UM1JgwLHYE3kA/tjmJwd9ITR4YnUo23LX0sw3Ph5iZb4Hqzu0pCR3AbaN4
        BPVZUFNpuefXz0dsBOakncOly8NimXw0zLgzj1RGBGCZ0WuGj7huI9qF9F9bEF3UI8FbhoRqQZo9v
        Nid2Gdkw==;
Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux))
        id 1pJDVG-00DsCV-Np; Sat, 21 Jan 2023 13:01:50 +0000
Date:   Sat, 21 Jan 2023 05:01:50 -0800
From:   Christoph Hellwig <hch@infradead.org>
To:     David Howells <dhowells@redhat.com>
Cc:     Al Viro <viro@zeniv.linux.org.uk>,
        Christoph Hellwig <hch@infradead.org>,
        Matthew Wilcox <willy@infradead.org>,
        Jens Axboe <axboe@kernel.dk>, Jan Kara <jack@suse.cz>,
        Jeff Layton <jlayton@kernel.org>,
        Logan Gunthorpe <logang@deltatee.com>,
        linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
        John Hubbard <jhubbard@nvidia.com>, linux-mm@kvack.org
Subject: Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list
 from an iterator
Message-ID: <Y8viPvCA6AKDUKIq@infradead.org>
References: <20230120175556.3556978-1-dhowells@redhat.com>
 <20230120175556.3556978-3-dhowells@redhat.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20230120175556.3556978-3-dhowells@redhat.com>
X-SRS-Rewrite: SMTP reverse-path rewritten from <hch@infradead.org> by bombadil.infradead.org. See http://www.infradead.org/rpr.html
Precedence: bulk
List-ID: <linux-block.vger.kernel.org>
X-Mailing-List: linux-block@vger.kernel.org

> +#define iov_iter_extract_mode(iter, extract_flags) \
> +	(user_backed_iter(iter) ?				\
> +	 (iter->data_source == ITER_SOURCE) ?			\
> +	 FOLL_GET : FOLL_PIN : 0)

The extract_flags argument is unused here.