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=-3.8 required=3.0 tests=BAYES_00, 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 7BBC4C43461 for ; Mon, 14 Sep 2020 15:01:10 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2140920829 for ; Mon, 14 Sep 2020 15:01:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2140920829 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A70AA6B0037; Mon, 14 Sep 2020 11:01:09 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A47E16B0055; Mon, 14 Sep 2020 11:01:09 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 984476B005C; Mon, 14 Sep 2020 11:01:09 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0140.hostedemail.com [216.40.44.140]) by kanga.kvack.org (Postfix) with ESMTP id 7F1A26B0037 for ; Mon, 14 Sep 2020 11:01:09 -0400 (EDT) Received: from smtpin01.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 31F09181AEF1E for ; Mon, 14 Sep 2020 15:01:09 +0000 (UTC) X-FDA: 77261979858.01.view57_47128f927109 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin01.hostedemail.com (Postfix) with ESMTP id 9E5F31004784D for ; Mon, 14 Sep 2020 15:01:02 +0000 (UTC) X-HE-Tag: view57_47128f927109 X-Filterd-Recvd-Size: 1297 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf30.hostedemail.com (Postfix) with ESMTP for ; Mon, 14 Sep 2020 15:00:49 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id C84E0AD11; Mon, 14 Sep 2020 15:01:03 +0000 (UTC) Date: Mon, 14 Sep 2020 17:00:48 +0200 From: Michal Hocko To: David Hildenbrand Cc: Li Xinhai , linux-mm@kvack.org, akpm@linux-foundation.org Subject: Re: [PATCH] mm, isolation: avoid checking unmovable pages across pageblock boundary Message-ID: <20200914150048.GZ16999@dhcp22.suse.cz> References: <20200824065811.383266-1-lixinhai.lxh@gmail.com> <20200825082623.GC22869@dhcp22.suse.cz> <5890911e-1006-9f3a-b444-8f0bc626899f@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5890911e-1006-9f3a-b444-8f0bc626899f@redhat.com> X-Rspamd-Queue-Id: 9E5F31004784D X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000067, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue 08-09-20 10:30:35, David Hildenbrand wrote: [...] > - gigantic pages (alloc_contig_range()) never use ranges with holes > - CMA (alloc_contig_range()) never uses ranges with holes. Where is that enforced? -- Michal Hocko SUSE Labs