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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 8BF60C43215 for ; Thu, 21 Nov 2019 20:38:28 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4D5E2206D7 for ; Thu, 21 Nov 2019 20:38:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="eWXxVHyM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D5E2206D7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BE69F6B037C; Thu, 21 Nov 2019 15:38:27 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B967C6B037D; Thu, 21 Nov 2019 15:38:27 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AADA66B037F; Thu, 21 Nov 2019 15:38:27 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 949BD6B037C for ; Thu, 21 Nov 2019 15:38:27 -0500 (EST) Received: from smtpin15.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id 5410C2C37 for ; Thu, 21 Nov 2019 20:38:27 +0000 (UTC) X-FDA: 76181447454.15.drug77_66ddf4b0f0029 X-HE-Tag: drug77_66ddf4b0f0029 X-Filterd-Recvd-Size: 4115 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf29.hostedemail.com (Postfix) with ESMTP for ; Thu, 21 Nov 2019 20:38:26 +0000 (UTC) Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6BC7D2068D; Thu, 21 Nov 2019 20:38:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574368705; bh=tkue0peFTapJgtiml9Rsf9+zPuGR8vfy55j8RC72cxA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=eWXxVHyMqL0FI5PfBcn+Pf+oXV3Wt0TEUIIKeT2DmhIJ0+/NPjMyhZbU4t8RJgByi VM84KxBJcrKGn/A2W2PsBHIBRSiXenDXc4E1Oj9C5BvNe5/YNMZ6P1AnHwQe43GhO3 LYAi9LAE0OIKCVwiVR9v5/NShNJn1tnY2xohgi7Q= Date: Thu, 21 Nov 2019 21:38:23 +0100 From: "gregkh@linuxfoundation.org" To: Ajay Kaher Cc: Vlastimil Babka , "torvalds@linux-foundation.org" , "punit.agrawal@arm.com" , "akpm@linux-foundation.org" , "kirill.shutemov@linux.intel.com" , "willy@infradead.org" , "will.deacon@arm.com" , "mszeredi@redhat.com" , "stable@vger.kernel.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Srivatsa Bhat , "srivatsa@csail.mit.edu" , Alexey Makhalov , Srinidhi Rao , Vikash Bansal , Anish Swaminathan , Vasavi Sirnapalli , Steven Rostedt , "stable@kernel.org" , Ben Hutchings Subject: Re: [PATCH v2 6/8] mm: prevent get_user_pages() from overflowing page refcount Message-ID: <20191121203823.GE813260@kroah.com> References: <1570581863-12090-1-git-send-email-akaher@vmware.com> <1570581863-12090-7-git-send-email-akaher@vmware.com> <0E5175FB-7058-4211-9AA4-9D5E2F6A30B9@vmware.com> <35d74931-2c18-00ff-7622-522a79be9103@suse.cz> <88E8A78A-6CA3-46C1-A2AA-DFE7A3A52586@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <88E8A78A-6CA3-46C1-A2AA-DFE7A3A52586@vmware.com> User-Agent: Mutt/1.12.2 (2019-09-21) Content-Transfer-Encoding: quoted-printable 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 Mon, Nov 11, 2019 at 05:00:29AM +0000, Ajay Kaher wrote: >=20 > =EF=BB=BFOn 06/11/19, 2:25 PM, "Vlastimil Babka" wrote= : >=20 > > On 10/25/19 8:18 AM, Ajay Kaher wrote: > >> On 17/10/19, 9:58 PM, "Ajay Kaher" wrote: > >> =20 > >>> =20 > >>> Could we handle arch-specific gup.c in different patch sets and=20 > >>> let these patches to merge to 4.4.y? > >> =20 > >> Vlastimil, please suggest if it's fine to merge these patches to 4.4= .y > > > > I'm not sure if it makes much sense to merge them without the arch-sp= ecific gup > > support, when we're aware that it's missing. > > > >> and handle arch-specific gup.c in different patch sets starts from 4= .19.y, > > > > Actually arch-specific gup.c were removed in 4.13, so it's enough to = start from > > 4.9.y, which I'm going to finally look into. >=20 > Yes x86 gup.c is removed. s390 gup.c is present till 4.19, > so if you are making changes in this file for 4.4.y and 4.9.y,=20 > then same should be done for 4.14.y and v4.19.y. Ok, I have no idea what to do here. I have two different series from both of you, yet they are different. Can you both come up with a series you agree on, and send it to me, with both of your acks so that I know this is what should be applied? I've deleted both of your current series from my todo mbox. thanks, greg k-h