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 98A43C433E0 for ; Wed, 17 Feb 2021 13:41:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C38B64E45 for ; Wed, 17 Feb 2021 13:41:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232830AbhBQNk7 (ORCPT ); Wed, 17 Feb 2021 08:40:59 -0500 Received: from mx2.suse.de ([195.135.220.15]:43178 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233162AbhBQNhV (ORCPT ); Wed, 17 Feb 2021 08:37:21 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1613568992; h=from:from:reply-to: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=rvISpz3ofagvl1cWGCMXIJkrwp7FgPMMTV+xRML9QfQ=; b=lXNDDDb3cM7QFZVZ9zl5xWB0bYplb1oY8EFwpA9PBfoPsEfpBiHdMt+GqdARcUFrdhyUO8 3C0BMjA1UTknkvBnKoseuZ9GFTJlc/A1cNwn0GQU2/clui5GefzNrMO62ZqvD0HEbSh0Lv 5UkJHCjSNejNuIrkHnIgrBQRoByFCFg= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 97E46B75E; Wed, 17 Feb 2021 13:36:32 +0000 (UTC) Date: Wed, 17 Feb 2021 14:36:31 +0100 From: Michal Hocko To: Oscar Salvador Cc: Andrew Morton , Mike Kravetz , David Hildenbrand , Muchun Song , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] mm: Make alloc_contig_range handle in-use hugetlb pages Message-ID: References: <20210217100816.28860-1-osalvador@suse.de> <20210217100816.28860-3-osalvador@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210217100816.28860-3-osalvador@suse.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 17-02-21 11:08:16, Oscar Salvador wrote: > In-use hugetlb pages can be migrated as any other page (LRU > and Movable), so let alloc_contig_range handle them. > > All we need is to succesfully isolate such page. Again, this is missing a problem statement and a justification why we want/need this. -- Michal Hocko SUSE Labs