From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0C19ECAAD3 for ; Mon, 5 Sep 2022 14:36:56 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 91F3D801E7; Mon, 5 Sep 2022 10:36:56 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8CE87801E6; Mon, 5 Sep 2022 10:36:56 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7BE30801E7; Mon, 5 Sep 2022 10:36:56 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 6CE72801E6 for ; Mon, 5 Sep 2022 10:36:56 -0400 (EDT) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 44ED6AAF29 for ; Mon, 5 Sep 2022 14:36:56 +0000 (UTC) X-FDA: 79878283632.20.839F819 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by imf31.hostedemail.com (Postfix) with ESMTP id E126B2007A for ; Mon, 5 Sep 2022 14:36:55 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 3C02168BFE; Mon, 5 Sep 2022 16:36:53 +0200 (CEST) Date: Mon, 5 Sep 2022 16:36:53 +0200 From: Christoph Hellwig To: Logan Gunthorpe Cc: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, linux-pci@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig , Greg Kroah-Hartman , Dan Williams , Jason Gunthorpe , Christian =?iso-8859-1?Q?K=F6nig?= , John Hubbard , Don Dutile , Matthew Wilcox , Daniel Vetter , Minturn Dave B , Jason Ekstrand , Dave Hansen , Xiong Jianxin , Bjorn Helgaas , Ira Weiny , Robin Murphy , Martin Oliveira , Chaitanya Kulkarni , Ralph Campbell , Stephen Bates Subject: Re: [PATCH v9 6/8] block: set FOLL_PCI_P2PDMA in bio_map_user_iov() Message-ID: <20220905143653.GE5813@lst.de> References: <20220825152425.6296-1-logang@deltatee.com> <20220825152425.6296-7-logang@deltatee.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220825152425.6296-7-logang@deltatee.com> User-Agent: Mutt/1.5.17 (2007-11-01) ARC-Authentication-Results: i=1; imf31.hostedemail.com; dkim=none; spf=none (imf31.hostedemail.com: domain of hch@lst.de has no SPF policy when checking 213.95.11.211) smtp.mailfrom=hch@lst.de; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1662388616; a=rsa-sha256; cv=none; b=Ql1ad0/Ac1J6aWsbgVRXgT139E3U8hkyhUMoa7ot2/RuEyAq8fVQHFM6dHXJdO24lo3mtO etQIncMl38QKCOj54YJBlhialYPg/ukPQR6CI379vWajx33zy1tgCwKO3xGlDH4MDmRPrZ OIsT+cf0CWw/z98jbjdGPsz3kkTWkRY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1662388616; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wyLsFcR27tbHYfIHcr8kAUx99eC0PkqGX2lPeHPbot8=; b=E9tczZ49sSG9tinjOMymM3OkNuCgTv0x5T/Ya2WQIwdeLL8gcXXjZ2xKrE8CHGxmH8toiU jHUhD0sSjfTzyGi9rNgmIcu9v4W7P30s/zHenD+kUyCaPo+PwHvOZ/jF8A3BRz42cW+3P3 LbbY+RDzvkiulPGQ7GfA/y4jOa3Ix0c= X-Rspamd-Server: rspam02 X-Rspam-User: Authentication-Results: imf31.hostedemail.com; dkim=none; spf=none (imf31.hostedemail.com: domain of hch@lst.de has no SPF policy when checking 213.95.11.211) smtp.mailfrom=hch@lst.de; dmarc=none X-Stat-Signature: 9gdiw1757z9z5tkzrjaicfq7575siphz X-Rspamd-Queue-Id: E126B2007A X-HE-Tag: 1662388615-695079 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Aug 25, 2022 at 09:24:23AM -0600, Logan Gunthorpe wrote: > When a bio's queue supports PCI P2PDMA, set FOLL_PCI_P2PDMA for > iov_iter_get_pages_flags(). This allows PCI P2PDMA pages to be > passed from userspace and enables the NVMe passthru requests to > use P2PDMA pages. > > Signed-off-by: Logan Gunthorpe Looks good: Reviewed-by: Christoph Hellwig