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=-5.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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 3D4D4C2D0A8 for ; Wed, 23 Sep 2020 15:37:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DFEC0214D8 for ; Wed, 23 Sep 2020 15:37:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="InU1H8NW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726676AbgIWPhf (ORCPT ); Wed, 23 Sep 2020 11:37:35 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:52345 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726156AbgIWPhe (ORCPT ); Wed, 23 Sep 2020 11:37:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1600875453; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JicKQA4BS2AeARqjvqW/mkb4QGFKS6bxgbM2Y52Kx4g=; b=InU1H8NWp9E4qI+Mq8T7xpkBthgShfh5GCR2FFvZYKGWPep5fTYUDphIoQGhwzXl1YYlHO ZICSh/1mRr6I37pBbb0QaENeMqDyaLOHOJ8v68/er3rsgj8miy/Y3Xtd7c9L2vk+3soobl 6C4T3auoQ3MXSF7lmjeElysjpbAiOfk= Received: from mail-qt1-f199.google.com (mail-qt1-f199.google.com [209.85.160.199]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-355-kq3IqOUyPTCuD-CxLnyMJw-1; Wed, 23 Sep 2020 11:37:29 -0400 X-MC-Unique: kq3IqOUyPTCuD-CxLnyMJw-1 Received: by mail-qt1-f199.google.com with SMTP id b39so86791qta.0 for ; Wed, 23 Sep 2020 08:37:29 -0700 (PDT) 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=JicKQA4BS2AeARqjvqW/mkb4QGFKS6bxgbM2Y52Kx4g=; b=amGE2LG5nz2w2MKKhnOZpr0/8sMKihFCNu4TuGKPYnEmXOy2ZKJKZvMaYDRqBkxz9p 2gJqNHg2oI5SpsS3X5HfhfF54J7dtqdc6iLmJ7O6KY5sApMyJdL9OunSU63kiLUqRBpl VeN+t5tJ5lSgCJ8Ckl2fj3MzXlVm4HTsXitcRhk36Iq8hVSUiuPhhA/9cLJZ6Ak+sGRI +BESQk0XTS4CyuYjPiJ+Nk4WV6ev686jS9uTxW8gmEKova2mYOsEhPNocyAipLUL8xUo T+6Q9PPg0c3FDv0NaLzl/t0RNQnprt4WLhKWsSAqXDOWXy2BRWxNWnxHJzMo4Ze9A/ah +Fcg== X-Gm-Message-State: AOAM530olHdpaPFFodR2YBEp6pEwqCCGMh8KkBDyE7NwBjSFsPZXfYvy FCOgaHrawVltfJ7qth6xyn/kQxRFMeKW+q6I/omVSjz1svkLmlYgIZv+cZSTySErwNdq/jGX2wb gSMAN3/mJhM/AJcvHmzzRG3Bo X-Received: by 2002:a37:ef05:: with SMTP id j5mr441968qkk.456.1600875448567; Wed, 23 Sep 2020 08:37:28 -0700 (PDT) X-Google-Smtp-Source: ABdhPJw5Y/WqTPBdPVl7k7rHlQuvZjRvdy3ng6anDeCQEguVdk9j1bEqKzIDnsXNENvW9mVgbaqJ/w== X-Received: by 2002:a37:ef05:: with SMTP id j5mr441939qkk.456.1600875448372; Wed, 23 Sep 2020 08:37:28 -0700 (PDT) Received: from xz-x1 (bras-vprn-toroon474qw-lp130-11-70-53-122-15.dsl.bell.ca. [70.53.122.15]) by smtp.gmail.com with ESMTPSA id 145sm225609qkf.18.2020.09.23.08.37.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Sep 2020 08:37:27 -0700 (PDT) Date: Wed, 23 Sep 2020 11:37:26 -0400 From: Peter Xu To: Leon Romanovsky Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Jason Gunthorpe , Andrew Morton , Jan Kara , Michal Hocko , Kirill Tkhai , Kirill Shutemov , Hugh Dickins , Christoph Hellwig , Andrea Arcangeli , John Hubbard , Oleg Nesterov , Linus Torvalds , Jann Horn Subject: Re: [PATCH 0/5] mm: Break COW for pinned pages during fork() Message-ID: <20200923153726.GD59978@xz-x1> References: <20200921211744.24758-1-peterx@redhat.com> <20200923102119.GK1223944@unreal> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200923102119.GK1223944@unreal> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 23, 2020 at 01:21:19PM +0300, Leon Romanovsky wrote: > Hi Peter, > > I'm ware that this series is under ongoing review and probably not > final, but we tested anyway and it solves our RDMA failures. Hi, Leon, Yes I think there'll definitely be more version(s), but thank you for the quick follow up! This is a very valuable information to know that we're at least with a good base point. Thanks, -- Peter Xu