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 771A5C433E0 for ; Wed, 3 Mar 2021 02:53:55 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A5A0B64E90 for ; Wed, 3 Mar 2021 02:53:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A5A0B64E90 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1AA5A8D011A; Tue, 2 Mar 2021 21:53:54 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 10D658D00FA; Tue, 2 Mar 2021 21:53:54 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E7A148D011A; Tue, 2 Mar 2021 21:53:53 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0139.hostedemail.com [216.40.44.139]) by kanga.kvack.org (Postfix) with ESMTP id C95128D00FA for ; Tue, 2 Mar 2021 21:53:53 -0500 (EST) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 812F0180002AB for ; Wed, 3 Mar 2021 02:53:53 +0000 (UTC) X-FDA: 77877043146.08.66FEE1B Received: from mail-lf1-f54.google.com (mail-lf1-f54.google.com [209.85.167.54]) by imf02.hostedemail.com (Postfix) with ESMTP id 2D7DF407F8EB for ; Wed, 3 Mar 2021 02:53:51 +0000 (UTC) Received: by mail-lf1-f54.google.com with SMTP id f1so34696266lfu.3 for ; Tue, 02 Mar 2021 18:53:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=PlAt31SpIg8w5ZqFFQBggiEL5ACV+/LKER4FjGh9+/s=; b=P5C+z30lvIe7LfJvguY5pepEjmeAtyVqyzNYuqvoJxVQ7MvSOVo+RjJi7UUaeC16QR LA4v/h3O7YbLbvcPYMXLRGjOSr1tPwiaO6ezb9Yh0cF82Svvw/5xrHN7sQsc3EPlvX2z HC6XWZJ6PCGabd9JJxSpUrnCF/Q4eB2gZS5rY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=PlAt31SpIg8w5ZqFFQBggiEL5ACV+/LKER4FjGh9+/s=; b=edIaFElTEVxhUaYyLfBC+iNNmVPkjnZWH44UGZAJElN00p1gJtipb0MfF1ssi5vn0J I6EnEXfobtngt3Bzjczxtu9KhqgrvKX3ReV2YJqISPH7tCQ7ctRaW0gUEn3iyqlTW9zw 4hL7Ygjl4ky3zJzKt6YPF1ciVHBmirTubxmd9KwUXpvn4h7NMNd6AuhbED+kqTyOou3C l1nNZzc4e5wCTVt5zLFJAJ++g1mLD7yL6+tiC4c4P7i2Ecy5rI6uXJKzPbji/KkuFlCe CUitu7tfLjnBER/40ovHsxDTHDSG7q5jjVfWTvZxSXuMAzZXs2zrQlWMggw1VXDYRUl7 aigg== X-Gm-Message-State: AOAM530qkDXiP6i3YzytTlfj6okN4iEw5TAOm8Qq4tEiQfIsw/1lGR4I unoB4sQhnDc2Azbyic7wqm3YHrzTI/I1eg== X-Google-Smtp-Source: ABdhPJwJXSDFoh3i+sHk5GbPOgIJ0klD8CgiHDDTuDAsWh6P4J1mGAAqWKtHN8eDOgCnhJyuScF3FA== X-Received: by 2002:a05:6512:234d:: with SMTP id p13mr13594426lfu.87.1614740031510; Tue, 02 Mar 2021 18:53:51 -0800 (PST) Received: from mail-lj1-f171.google.com (mail-lj1-f171.google.com. [209.85.208.171]) by smtp.gmail.com with ESMTPSA id h17sm169543lfc.289.2021.03.02.18.53.51 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 02 Mar 2021 18:53:51 -0800 (PST) Received: by mail-lj1-f171.google.com with SMTP id q23so26698880lji.8 for ; Tue, 02 Mar 2021 18:53:51 -0800 (PST) X-Received: by 2002:a05:651c:3c1:: with SMTP id f1mr12804554ljp.507.1614739564909; Tue, 02 Mar 2021 18:46:04 -0800 (PST) MIME-Version: 1.0 References: <20210217233547.93892-1-peterx@redhat.com> <20210301141151.GA397383@xz-x1> <20210301162846.c1f684a5662d37bbec3f1892@linux-foundation.org> <20210303014655.GS397383@xz-x1> In-Reply-To: <20210303014655.GS397383@xz-x1> From: Linus Torvalds Date: Tue, 2 Mar 2021 18:45:49 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v5 0/5] mm/hugetlb: Early cow on fork, and a few cleanups To: Peter Xu Cc: Andrew Morton , Linux-MM , Linux Kernel Mailing List , Gal Pressman , Matthew Wilcox , Wei Zhang , Mike Kravetz , Mike Rapoport , Christoph Hellwig , David Gibson , Jason Gunthorpe , Jann Horn , Kirill Tkhai , Kirill Shutemov , Miaohe Lin , Andrea Arcangeli , Jan Kara Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 2D7DF407F8EB X-Stat-Signature: f9mdkxxugc9p3f765bnb1swrmgzt7u9q Received-SPF: none (linuxfoundation.org>: No applicable sender policy available) receiver=imf02; identity=mailfrom; envelope-from=""; helo=mail-lf1-f54.google.com; client-ip=209.85.167.54 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1614740031-544902 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 Tue, Mar 2, 2021 at 5:47 PM Peter Xu wrote: > > As Jason and Wei pointed out, I think some userspace still got corrupted data > without this series when using hugetlb backend. I don't think it'll suite for > a late RC release but it'll still be great if it can be considered as an early > rc candidate, ideally rc1 of course. If you prefer the other way, I can also > repost it before 5.13 merge window opens. I think with my merge window delay issue, you guys have the perfect excuse for pushing it a bit late and it still hitting 5.12 Linus