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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 7BC76C433E0 for ; Thu, 25 Jun 2020 12:08:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 49C5520720 for ; Thu, 25 Jun 2020 12:08:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593086915; bh=UTXjgeQF1TCDFLcE3AblPIEwOdvzaYR9hq7jZSFx3EA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=nK10u99LF3vLmJ6zO67IPOa2zjIOgN/46GbqDel0lDBbECd/0ABAwBuK5PkrXJltA Y3a7D7HFK9xPkNw9JO8zpTwIi1T2nLkTEcxzcnSUag8M7KDWKBVIs4CzxrKtTR9T9r 3ZsSdiFFAApDSUaoXtjfdNZrF4JwtINKO8F4lz1A= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404498AbgFYMIe (ORCPT ); Thu, 25 Jun 2020 08:08:34 -0400 Received: from mail-ej1-f67.google.com ([209.85.218.67]:45795 "EHLO mail-ej1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404222AbgFYMId (ORCPT ); Thu, 25 Jun 2020 08:08:33 -0400 Received: by mail-ej1-f67.google.com with SMTP id a1so5656087ejg.12 for ; Thu, 25 Jun 2020 05:08:32 -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=UKCFODb5/EwXV72SoexoF57zFObV5cMgCmwfT5dAPbA=; b=VlkoRLGP6ZTOgAz63/va2pc4PSf7wavjTDUO4sstRpYOE945TOoxkqED4phFOZ+PNf N8QJALIMq7qIX2DIearHsXI8eyFXSW6wE+s5X41/sV2pkXK0a+vwgL1o2LznQqhMPeTR Lc0ftVp4F+lY+Ee2OoMMgmB/YCFzrn6BR5GSvMXvji5ubIWonqAE/KdaCgGg0kvRfPMP mE/yJm1Rldrr1GZN8G7baYFUEotF7P4oOuJ9nqf8i31FTaFmIS8LD2LFsQBDzyeKANtb QPjxbY/a66TnpQ+/TOM/RaOk7/3v+dyFK1zbqczraG5PWXfzKCaB6XPTCfMRaL/RAmyn DsXQ== X-Gm-Message-State: AOAM533pY4BZdagNjm7jqeNFLQ0WLtWMNKwk6Li7loeoqMMJ+JZXtwtE p2w55+/Srhg4KgYkbaN09Jw= X-Google-Smtp-Source: ABdhPJyIfSv0VZbZMw3M3h0u082IqoTwW1GoIrLB4k0XxcfIY0wyn5fnLFwQVwhzWD9F/bd4ew1YGA== X-Received: by 2002:a17:906:c672:: with SMTP id ew18mr30511084ejb.404.1593086911908; Thu, 25 Jun 2020 05:08:31 -0700 (PDT) Received: from localhost (ip-37-188-168-3.eurotel.cz. [37.188.168.3]) by smtp.gmail.com with ESMTPSA id v24sm3012701eja.29.2020.06.25.05.08.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Jun 2020 05:08:31 -0700 (PDT) Date: Thu, 25 Jun 2020 14:08:30 +0200 From: Michal Hocko To: js1304@gmail.com Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@lge.com, Vlastimil Babka , Christoph Hellwig , Roman Gushchin , Mike Kravetz , Naoya Horiguchi , Joonsoo Kim Subject: Re: [PATCH v3 6/8] mm/gup: use a standard migration target allocation callback Message-ID: <20200625120830.GG1320@dhcp22.suse.cz> References: <1592892828-1934-1-git-send-email-iamjoonsoo.kim@lge.com> <1592892828-1934-7-git-send-email-iamjoonsoo.kim@lge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1592892828-1934-7-git-send-email-iamjoonsoo.kim@lge.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 23-06-20 15:13:46, Joonsoo Kim wrote: > From: Joonsoo Kim > > There is a well-defined migration target allocation callback. > It's mostly similar with new_non_cma_page() except considering CMA pages. > > This patch adds a CMA consideration to the standard migration target > allocation callback and use it on gup.c. We already can express that by a missing __GFP_MOVABLE so I would rather not introduce a duplication in form of another flag. -- Michal Hocko SUSE Labs