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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DEE9EC4332B for ; Thu, 19 Mar 2020 07:16:38 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B43DF20409 for ; Thu, 19 Mar 2020 07:16:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B43DF20409 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 849276B0003; Thu, 19 Mar 2020 03:16:37 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7F8CD6B0005; Thu, 19 Mar 2020 03:16:37 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6E7796B0006; Thu, 19 Mar 2020 03:16:37 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0176.hostedemail.com [216.40.44.176]) by kanga.kvack.org (Postfix) with ESMTP id 54A486B0003 for ; Thu, 19 Mar 2020 03:16:37 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 0093B180AD822 for ; Thu, 19 Mar 2020 07:16:36 +0000 (UTC) X-FDA: 76611254034.29.dirt10_1c996140b2817 X-HE-Tag: dirt10_1c996140b2817 X-Filterd-Recvd-Size: 1793 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by imf16.hostedemail.com (Postfix) with ESMTP for ; Thu, 19 Mar 2020 07:16:36 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 5507E68C65; Thu, 19 Mar 2020 08:16:33 +0100 (CET) Date: Thu, 19 Mar 2020 08:16:33 +0100 From: Christoph Hellwig To: Jason Gunthorpe Cc: Christoph Hellwig , Dan Williams , Bharata B Rao , Christian =?iso-8859-1?Q?K=F6nig?= , Ben Skeggs , Jerome Glisse , kvm-ppc@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-mm@kvack.org Subject: Re: ensure device private pages have an owner v2 Message-ID: <20200319071633.GA32522@lst.de> References: <20200316193216.920734-1-hch@lst.de> <20200319002849.GG20941@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200319002849.GG20941@ziepe.ca> User-Agent: Mutt/1.5.17 (2007-11-01) 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 Wed, Mar 18, 2020 at 09:28:49PM -0300, Jason Gunthorpe wrote: > > Changes since v1: > > - split out the pgmap->owner addition into a separate patch > > - check pgmap->owner is set for device private mappings > > - rename the dev_private_owner field in struct migrate_vma to src_owner > > - refuse to migrate private pages if src_owner is not set > > - keep the non-fault device private handling in hmm_range_fault > > I'm happy enough to take this, did you have plans for a v3? I think the only open question is if merging 3 and 4 might make sense. It's up to you if you want it resent that way or not.