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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 63E61C4332B for ; Tue, 2 Mar 2021 07:45:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1B8F264DE5 for ; Tue, 2 Mar 2021 07:45:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1381219AbhCBEWr (ORCPT ); Mon, 1 Mar 2021 23:22:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55812 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1376879AbhCBAbS (ORCPT ); Mon, 1 Mar 2021 19:31:18 -0500 Received: from mail-qt1-x831.google.com (mail-qt1-x831.google.com [IPv6:2607:f8b0:4864:20::831]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5A3BC061756 for ; Mon, 1 Mar 2021 16:30:37 -0800 (PST) Received: by mail-qt1-x831.google.com with SMTP id d11so12846939qtx.9 for ; Mon, 01 Mar 2021 16:30:37 -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:in-reply-to; bh=V5XRDKSRTrEzosp2UPBuDbx+QrXytxwidYKwqNZIiyA=; b=nHrLjjBAe/3VmMhIwWkmvCfPxva/KxsUqCBKVYw97cGXjOOxpbi1MmLYy4Yu59rKuM moyAxZ2T02rg9oYMq+VbUoWpNdp11tiYW2Dq9/ojq5asLVfIcJmwhNhhZBebwVH6REX3 sA6H4f7MHkF3nXNr+qSGOFx3LqbTlfly6QvWQR/P49zCQXCmFTXGL5Vw3SVEurX7PAfJ E3tK53s4789WHWwmVRHUdURIzzB9bMsb1Ht2rwgR8G4++lUljnuE+q/5ygk2uOsVPGmx nmxdk2ByOpFYKvFo0kV5FW47iOHbWsKguzxXB/24RbTB0Kieit7yB4WCgG8IXYHCPJ7A zuSg== 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:in-reply-to; bh=V5XRDKSRTrEzosp2UPBuDbx+QrXytxwidYKwqNZIiyA=; b=M9n9DkYX++/kUshMuZvp+JQFREOJn4J+6XH9lmN31QaNDPNqaFw3vyCeFK7YDY1sVO 4xEMZ0MOgYSoY/p2+qu3KYHsz7jRkU/UVfBusmMz1aa855Nk/iPPQacZw1x22U0vYHiL lEh4UMx5jk0CNgSh5EYBVFRypH+wQ+ysFjWDJ506saglXuyULgx+Wrz3Cu7Ghe0F8phc 9JhPOmwMBurhm8Y3NPvDSUZrsI0sAZxA6L1T37bLkE53S3eDx7duPrAXbVBJeAuR4gfe dXw3OfgFu4ItCfPcnYFcn2NDrr96/1uIYWDwQ7Vn2uiveH+CuRt2coRzMmu0/1ACMze5 8vPg== X-Gm-Message-State: AOAM532X7gTeXUxCu2hci13tNxrfVMNA7Rm22gIj2FH1Z+bF7H/CRn2a h4SvZMU7aRBYGvtQ15uSqbs03g== X-Google-Smtp-Source: ABdhPJxOPKZVP7ySV7Nl5PCX8Mm1Snf9yWKNbiUIb/lAB5iulEQyPv0Ag8tJVE7enAoFDrealZeA8g== X-Received: by 2002:a05:622a:8a:: with SMTP id o10mr16147445qtw.9.1614645037015; Mon, 01 Mar 2021 16:30:37 -0800 (PST) Received: from ziepe.ca (hlfxns017vw-142-162-115-133.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.162.115.133]) by smtp.gmail.com with ESMTPSA id l29sm5928848qtu.35.2021.03.01.16.30.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Mar 2021 16:30:36 -0800 (PST) Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1lGsvr-003KNN-RN; Mon, 01 Mar 2021 20:30:35 -0400 Date: Mon, 1 Mar 2021 20:30:35 -0400 From: Jason Gunthorpe To: Andrew Morton Cc: Peter Xu , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Gal Pressman , Matthew Wilcox , Wei Zhang , Mike Kravetz , Mike Rapoport , Christoph Hellwig , Linus Torvalds , David Gibson , Jann Horn , Kirill Tkhai , Kirill Shutemov , Miaohe Lin , Andrea Arcangeli , Jan Kara Subject: Re: [PATCH v5 0/5] mm/hugetlb: Early cow on fork, and a few cleanups Message-ID: <20210302003035.GE444867@ziepe.ca> References: <20210217233547.93892-1-peterx@redhat.com> <20210301141151.GA397383@xz-x1> <20210301162846.c1f684a5662d37bbec3f1892@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210301162846.c1f684a5662d37bbec3f1892@linux-foundation.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 01, 2021 at 04:28:46PM -0800, Andrew Morton wrote: > On Mon, 1 Mar 2021 09:11:51 -0500 Peter Xu wrote: > > > On Wed, Feb 17, 2021 at 06:35:42PM -0500, Peter Xu wrote: > > > v5: > > > - patch 4: change "int cow" into "bool cow" > > > - collect r-bs for Jason > > > > Andrew, > > > > I just noticed 5.12-rc1 has released; is this series still possible to make it > > for 5.12, or needs to wait for 5.13? > > > > It has taken a while to settle down. What is the case for > fast-tracking it into 5.12? IIRC hugetlb users and fork and DMA will get the unexpected VA corruption that triggered all this work. Jason