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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4567C433EF for ; Wed, 2 Feb 2022 16:35:29 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3A4918D0112; Wed, 2 Feb 2022 11:35:29 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3551A6B02C2; Wed, 2 Feb 2022 11:35:29 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1F5458D0112; Wed, 2 Feb 2022 11:35:29 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.26]) by kanga.kvack.org (Postfix) with ESMTP id 11F696B02C1 for ; Wed, 2 Feb 2022 11:35:29 -0500 (EST) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id CD7A722A25 for ; Wed, 2 Feb 2022 16:35:28 +0000 (UTC) X-FDA: 79098390336.01.DD87C12 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by imf13.hostedemail.com (Postfix) with ESMTP id 09B302000A for ; Wed, 2 Feb 2022 16:35:27 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 97A6E1F384; Wed, 2 Feb 2022 16:35:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1643819726; 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=4Dd4PVcW8Gh92qdOSXS52+1meGC/lQXnewRPI3vvCWE=; b=M/SKFXYhXQ0yaSChw6wIxQwQ5d7HBnBbnYDlWEH+hnqD2gnRU3+xCI+6AWEYpiwh1tZdAu KtJW8t4cx4QWxS5Zk62NXbTFdF8LzZ/KzDdwHjY0IPBREvgkfYKKJBsC6NFxl0sOiX45a/ hZg94FHTstR+iwC2GeJTfVyDJOOjisk= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1643819726; 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=4Dd4PVcW8Gh92qdOSXS52+1meGC/lQXnewRPI3vvCWE=; b=hsKjmKbgvjeh8w2ffnsVRR8qq8GIDQrxEVIgm82LLhaDtX8FUazOVZXfsAC08LwbHR+9cf G0oQWZAD3QabcgCw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id DC30813E99; Wed, 2 Feb 2022 16:35:24 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id HM+JMcyy+mFZNgAAMHmgww (envelope-from ); Wed, 02 Feb 2022 16:35:24 +0000 Date: Wed, 2 Feb 2022 17:35:22 +0100 From: Oscar Salvador To: David Hildenbrand Cc: Zi Yan , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Michael Ellerman , Christoph Hellwig , Marek Szyprowski , Robin Murphy , linuxppc-dev@lists.ozlabs.org, virtualization@lists.linux-foundation.org, iommu@lists.linux-foundation.org, Vlastimil Babka , Mel Gorman , Eric Ren Subject: Re: [PATCH v4 3/7] mm: page_isolation: check specified range for unmovable pages Message-ID: References: <20220119190623.1029355-1-zi.yan@sent.com> <20220119190623.1029355-4-zi.yan@sent.com> <21c196f8-18ca-d720-4241-00c9461854d3@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <21c196f8-18ca-d720-4241-00c9461854d3@redhat.com> X-Stat-Signature: 19rugr6q8pa6hoo7r9rrpda6yjubgzko X-Rspam-User: nil Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=suse.de header.s=susede2_rsa header.b="M/SKFXYh"; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=hsKjmKbg; spf=pass (imf13.hostedemail.com: domain of osalvador@suse.de designates 195.135.220.29 as permitted sender) smtp.mailfrom=osalvador@suse.de; dmarc=pass (policy=none) header.from=suse.de X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 09B302000A X-HE-Tag: 1643819727-936991 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 Wed, Feb 02, 2022 at 01:25:28PM +0100, David Hildenbrand wrote: > That's the whole idea for being able to allocate parts of an unmovable > pageblock that are movable. > > If the first part is unmovable but the second part is movable, nothing > should stop us from trying to allocate the second part. Yeah, I see, I was a bit slow there, but I see the point now. Thanks David -- Oscar Salvador SUSE Labs