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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,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 7E10DFA372C for ; Fri, 8 Nov 2019 14:53:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 10B88215EA for ; Fri, 8 Nov 2019 14:53:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="CnUhcgt/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725995AbfKHOxE (ORCPT ); Fri, 8 Nov 2019 09:53:04 -0500 Received: from mail-qv1-f67.google.com ([209.85.219.67]:39226 "EHLO mail-qv1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725883AbfKHOxE (ORCPT ); Fri, 8 Nov 2019 09:53:04 -0500 Received: by mail-qv1-f67.google.com with SMTP id v16so2287175qvq.6 for ; Fri, 08 Nov 2019 06:53:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=KbZhp4AkDu7Xm430isAdIZqP2fKWimvIRojP4EOaH94=; b=CnUhcgt/uCiHhFzG5fQwx/7yL/1CG4oXAa5rt7QVxsRyYE9BvjQnSrmpCegteZ6wG6 UdbIqy2G3VBCdlFsOHxs/+U1RPE3dzDODchlcknxyMkLszr7SBFzpBBLTiddH4Tg08Ht mzvu2U3GfPtm+8nhuisFAzAvLGGBD26Rr2qKwRtahR5/cWZ9Dw2546KcysI5+LmkFl4f uw4TZt8ZwEN4pTKLcXSMHSPwzQXJJ83lX+Vu0OBNgSn6qsoG5vEKP04ONdCWloYbp4p+ mbwxr54K0neA//wodYLjyKVnqB2cadeD0Xva/t+JRc+rAwGI6mVj5ESfMeaSIg5DxLSM vL/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=KbZhp4AkDu7Xm430isAdIZqP2fKWimvIRojP4EOaH94=; b=fOLHY2tLgGH4aXuxNS3SLPh1P7kDSQ3G3Xs0dyj/TooGmHA9DH/SvBB1zwQXpG/cyb aqHX91Caegohs6H1tlwNyDQELvsv4hfYpBb376tqQlg9x+mtboRqavs+ytovT5kmbDus WZZqkGH7/7tsZYWP6Yh4+HPrAKGuflbMIVPVlnvQ14BlAxY8XZT8KrR5oHcpTiJmnaH0 6NFliDvTLjX2xUDyBndyLzout9Q2dFazPLJgsvLWGPBzfMfon6LSXxuUnXagzT1s4Jcb vEYX5REERleGrBeYIK+Gec10R5ueKrF+3OHB7zNQ4nDUZolCPHvPVD2PmHBHfriQKYdk e4TQ== X-Gm-Message-State: APjAAAW/bseJsLyATKt1PiDGSCjbSuZ0B9I7Bgb3oWRqrp2gjqCSsVgQ IsFv2gMmL3oB8Nh8ZHqKDcrxNg== X-Google-Smtp-Source: APXvYqxZ049SfJ3c2UO0ME4Y6QYpdzEBI6gXk0X7dNRcV8X3z8aw7kr92ScWfx2YoejxONb2FvDR8w== X-Received: by 2002:a05:6214:11f2:: with SMTP id e18mr10122108qvu.86.1573224783191; Fri, 08 Nov 2019 06:53:03 -0800 (PST) Received: from ziepe.ca (hlfxns017vw-142-162-113-180.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.162.113.180]) by smtp.gmail.com with ESMTPSA id o3sm3732759qta.3.2019.11.08.06.53.02 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 08 Nov 2019 06:53:02 -0800 (PST) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1iT5dF-0003YQ-V5; Fri, 08 Nov 2019 10:53:01 -0400 Date: Fri, 8 Nov 2019 10:53:01 -0400 From: Jason Gunthorpe To: Boris Ostrovsky Cc: "linux-mm@kvack.org" , Jerome Glisse , Ralph Campbell , John Hubbard , "Felix.Kuehling@amd.com" , "linux-rdma@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "amd-gfx@lists.freedesktop.org" , Alex Deucher , Ben Skeggs , Christian =?utf-8?B?S8O2bmln?= , David Zhou , Dennis Dalessandro , Juergen Gross , Mike Marciniszyn , Oleksandr Andrushchenko , Petr Cvek , Stefano Stabellini , "nouveau@lists.freedesktop.org" , "xen-devel@lists.xenproject.org" , Christoph Hellwig Subject: Re: [PATCH v2 09/15] xen/gntdev: use mmu_range_notifier_insert Message-ID: <20191108145301.GD10956@ziepe.ca> References: <20191028201032.6352-1-jgg@ziepe.ca> <20191028201032.6352-10-jgg@ziepe.ca> <3938b588-c6c5-3bd1-8ea9-47e4d5b2045c@oracle.com> <20191105023108.GN22766@mellanox.com> <20191107203629.GF6730@ziepe.ca> <4a68acc6-3ce7-e26b-2c98-774867288410@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4a68acc6-3ce7-e26b-2c98-774867288410@oracle.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Thu, Nov 07, 2019 at 05:54:52PM -0500, Boris Ostrovsky wrote: > On 11/7/19 3:36 PM, Jason Gunthorpe wrote: > > On Tue, Nov 05, 2019 at 10:16:46AM -0500, Boris Ostrovsky wrote: > > > >>> So, I suppose it can be relaxed to a null test and a WARN_ON that it > >>> hasn't changed? > >> You mean > >> > >> if (use_ptemod) { > >>         WARN_ON(map->vma != vma); > >>         ... > >> > >> > >> Yes, that sounds good. > > I amended my copy of the patch with the above, has this rework shown > > signs of working? > > Yes, it works fine. > > But please don't forget notifier ops initialization. > > With those two changes, > > Reviewed-by: Boris Ostrovsky Thanks, I got both things. I'll forward this toward linux-next and repost a v3 Jason From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [PATCH v2 09/15] xen/gntdev: use mmu_range_notifier_insert Date: Fri, 8 Nov 2019 10:53:01 -0400 Message-ID: <20191108145301.GD10956@ziepe.ca> References: <20191028201032.6352-1-jgg@ziepe.ca> <20191028201032.6352-10-jgg@ziepe.ca> <3938b588-c6c5-3bd1-8ea9-47e4d5b2045c@oracle.com> <20191105023108.GN22766@mellanox.com> <20191107203629.GF6730@ziepe.ca> <4a68acc6-3ce7-e26b-2c98-774867288410@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <4a68acc6-3ce7-e26b-2c98-774867288410@oracle.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Boris Ostrovsky Cc: Juergen Gross , David Zhou , Ralph Campbell , Stefano Stabellini , Oleksandr Andrushchenko , "linux-rdma@vger.kernel.org" , John Hubbard , "Felix.Kuehling@amd.com" , Mike Marciniszyn , "dri-devel@lists.freedesktop.org" , Christoph Hellwig , "linux-mm@kvack.org" , Jerome Glisse , "amd-gfx@lists.freedesktop.org" , "nouveau@lists.freedesktop.org" , Alex Deucher , "xen-devel@lists.xenproject.org" , Dennis Dalessandro List-Id: nouveau.vger.kernel.org T24gVGh1LCBOb3YgMDcsIDIwMTkgYXQgMDU6NTQ6NTJQTSAtMDUwMCwgQm9yaXMgT3N0cm92c2t5 IHdyb3RlOgo+IE9uIDExLzcvMTkgMzozNiBQTSwgSmFzb24gR3VudGhvcnBlIHdyb3RlOgo+ID4g T24gVHVlLCBOb3YgMDUsIDIwMTkgYXQgMTA6MTY6NDZBTSAtMDUwMCwgQm9yaXMgT3N0cm92c2t5 IHdyb3RlOgo+ID4KPiA+Pj4gU28sIEkgc3VwcG9zZSBpdCBjYW4gYmUgcmVsYXhlZCB0byBhIG51 bGwgdGVzdCBhbmQgYSBXQVJOX09OIHRoYXQgaXQKPiA+Pj4gaGFzbid0IGNoYW5nZWQ/Cj4gPj4g WW91IG1lYW4KPiA+Pgo+ID4+IGlmICh1c2VfcHRlbW9kKSB7Cj4gPj4gwqDCoMKgwqDCoMKgwqAg V0FSTl9PTihtYXAtPnZtYSAhPSB2bWEpOwo+ID4+IMKgwqDCoMKgwqDCoMKgIC4uLgo+ID4+Cj4g Pj4KPiA+PiBZZXMsIHRoYXQgc291bmRzIGdvb2QuCj4gPiBJIGFtZW5kZWQgbXkgY29weSBvZiB0 aGUgcGF0Y2ggd2l0aCB0aGUgYWJvdmUsIGhhcyB0aGlzIHJld29yayBzaG93bgo+ID4gc2lnbnMg b2Ygd29ya2luZz8KPiAKPiBZZXMsIGl0IHdvcmtzIGZpbmUuCj4gCj4gQnV0IHBsZWFzZSBkb24n dCBmb3JnZXQgbm90aWZpZXIgb3BzIGluaXRpYWxpemF0aW9uLgo+IAo+IFdpdGggdGhvc2UgdHdv IGNoYW5nZXMsCj4gCj4gUmV2aWV3ZWQtYnk6IEJvcmlzIE9zdHJvdnNreSA8Ym9yaXMub3N0cm92 c2t5QG9yYWNsZS5jb20+CgpUaGFua3MsIEkgZ290IGJvdGggdGhpbmdzLiBJJ2xsIGZvcndhcmQg dGhpcyB0b3dhcmQgbGludXgtbmV4dCBhbmQKcmVwb3N0IGEgdjMgCgpKYXNvbgoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcg bGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9q ZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA== 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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 0303DFA372C for ; 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[142.162.113.180]) by smtp.gmail.com with ESMTPSA id o3sm3732759qta.3.2019.11.08.06.53.02 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 08 Nov 2019 06:53:02 -0800 (PST) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1iT5dF-0003YQ-V5; Fri, 08 Nov 2019 10:53:01 -0400 Date: Fri, 8 Nov 2019 10:53:01 -0400 From: Jason Gunthorpe To: Boris Ostrovsky Message-ID: <20191108145301.GD10956@ziepe.ca> References: <20191028201032.6352-1-jgg@ziepe.ca> <20191028201032.6352-10-jgg@ziepe.ca> <3938b588-c6c5-3bd1-8ea9-47e4d5b2045c@oracle.com> <20191105023108.GN22766@mellanox.com> <20191107203629.GF6730@ziepe.ca> <4a68acc6-3ce7-e26b-2c98-774867288410@oracle.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4a68acc6-3ce7-e26b-2c98-774867288410@oracle.com> User-Agent: Mutt/1.9.4 (2018-02-28) Subject: Re: [Xen-devel] [PATCH v2 09/15] xen/gntdev: use mmu_range_notifier_insert X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , David Zhou , Ralph Campbell , Stefano Stabellini , Oleksandr Andrushchenko , "linux-rdma@vger.kernel.org" , John Hubbard , "Felix.Kuehling@amd.com" , Mike Marciniszyn , "dri-devel@lists.freedesktop.org" , Christoph Hellwig , "linux-mm@kvack.org" , Jerome Glisse , "amd-gfx@lists.freedesktop.org" , "nouveau@lists.freedesktop.org" , Alex Deucher , "xen-devel@lists.xenproject.org" , Dennis Dalessandro , Petr Cvek , Christian =?utf-8?B?S8O2bmln?= , Ben Skeggs Content-Type: text/plain; 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[142.162.113.180]) by smtp.gmail.com with ESMTPSA id o3sm3732759qta.3.2019.11.08.06.53.02 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 08 Nov 2019 06:53:02 -0800 (PST) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1iT5dF-0003YQ-V5; Fri, 08 Nov 2019 10:53:01 -0400 Date: Fri, 8 Nov 2019 10:53:01 -0400 From: Jason Gunthorpe To: Boris Ostrovsky Subject: Re: [PATCH v2 09/15] xen/gntdev: use mmu_range_notifier_insert Message-ID: <20191108145301.GD10956@ziepe.ca> References: <20191028201032.6352-1-jgg@ziepe.ca> <20191028201032.6352-10-jgg@ziepe.ca> <3938b588-c6c5-3bd1-8ea9-47e4d5b2045c@oracle.com> <20191105023108.GN22766@mellanox.com> <20191107203629.GF6730@ziepe.ca> <4a68acc6-3ce7-e26b-2c98-774867288410@oracle.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4a68acc6-3ce7-e26b-2c98-774867288410@oracle.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-Mailman-Approved-At: Fri, 08 Nov 2019 16:06:56 +0000 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=KbZhp4AkDu7Xm430isAdIZqP2fKWimvIRojP4EOaH94=; b=CnUhcgt/uCiHhFzG5fQwx/7yL/1CG4oXAa5rt7QVxsRyYE9BvjQnSrmpCegteZ6wG6 UdbIqy2G3VBCdlFsOHxs/+U1RPE3dzDODchlcknxyMkLszr7SBFzpBBLTiddH4Tg08Ht mzvu2U3GfPtm+8nhuisFAzAvLGGBD26Rr2qKwRtahR5/cWZ9Dw2546KcysI5+LmkFl4f uw4TZt8ZwEN4pTKLcXSMHSPwzQXJJ83lX+Vu0OBNgSn6qsoG5vEKP04ONdCWloYbp4p+ mbwxr54K0neA//wodYLjyKVnqB2cadeD0Xva/t+JRc+rAwGI6mVj5ESfMeaSIg5DxLSM vL/g== X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , David Zhou , Ralph Campbell , Stefano Stabellini , Oleksandr Andrushchenko , "linux-rdma@vger.kernel.org" , John Hubbard , "Felix.Kuehling@amd.com" , Mike Marciniszyn , "dri-devel@lists.freedesktop.org" , Christoph Hellwig , "linux-mm@kvack.org" , Jerome Glisse , "amd-gfx@lists.freedesktop.org" , "nouveau@lists.freedesktop.org" , Alex Deucher , "xen-devel@lists.xenproject.org" , Dennis Dalessandro , Petr Cvek , Christian =?utf-8?B?S8O2bmln?= , Ben Skeggs Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" Message-ID: <20191108145301.QPtA1fBSXwPj5b8a_IkuJjWh6rkdACRXk7ZQqfQMAE8@z> T24gVGh1LCBOb3YgMDcsIDIwMTkgYXQgMDU6NTQ6NTJQTSAtMDUwMCwgQm9yaXMgT3N0cm92c2t5 IHdyb3RlOgo+IE9uIDExLzcvMTkgMzozNiBQTSwgSmFzb24gR3VudGhvcnBlIHdyb3RlOgo+ID4g T24gVHVlLCBOb3YgMDUsIDIwMTkgYXQgMTA6MTY6NDZBTSAtMDUwMCwgQm9yaXMgT3N0cm92c2t5 IHdyb3RlOgo+ID4KPiA+Pj4gU28sIEkgc3VwcG9zZSBpdCBjYW4gYmUgcmVsYXhlZCB0byBhIG51 bGwgdGVzdCBhbmQgYSBXQVJOX09OIHRoYXQgaXQKPiA+Pj4gaGFzbid0IGNoYW5nZWQ/Cj4gPj4g WW91IG1lYW4KPiA+Pgo+ID4+IGlmICh1c2VfcHRlbW9kKSB7Cj4gPj4gwqDCoMKgwqDCoMKgwqAg V0FSTl9PTihtYXAtPnZtYSAhPSB2bWEpOwo+ID4+IMKgwqDCoMKgwqDCoMKgIC4uLgo+ID4+Cj4g Pj4KPiA+PiBZZXMsIHRoYXQgc291bmRzIGdvb2QuCj4gPiBJIGFtZW5kZWQgbXkgY29weSBvZiB0 aGUgcGF0Y2ggd2l0aCB0aGUgYWJvdmUsIGhhcyB0aGlzIHJld29yayBzaG93bgo+ID4gc2lnbnMg b2Ygd29ya2luZz8KPiAKPiBZZXMsIGl0IHdvcmtzIGZpbmUuCj4gCj4gQnV0IHBsZWFzZSBkb24n dCBmb3JnZXQgbm90aWZpZXIgb3BzIGluaXRpYWxpemF0aW9uLgo+IAo+IFdpdGggdGhvc2UgdHdv IGNoYW5nZXMsCj4gCj4gUmV2aWV3ZWQtYnk6IEJvcmlzIE9zdHJvdnNreSA8Ym9yaXMub3N0cm92 c2t5QG9yYWNsZS5jb20+CgpUaGFua3MsIEkgZ290IGJvdGggdGhpbmdzLiBJJ2xsIGZvcndhcmQg dGhpcyB0b3dhcmQgbGludXgtbmV4dCBhbmQKcmVwb3N0IGEgdjMgCgpKYXNvbgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwphbWQtZ2Z4IG1haWxpbmcgbGlz dAphbWQtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9w Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2FtZC1nZng=