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 7A14EC54EBC for ; Tue, 10 Jan 2023 15:28:41 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 19CFB8E0002; Tue, 10 Jan 2023 10:28:41 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 125E68E0001; Tue, 10 Jan 2023 10:28:41 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EE20B8E0002; Tue, 10 Jan 2023 10:28:40 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id E04AC8E0001 for ; Tue, 10 Jan 2023 10:28:40 -0500 (EST) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id C2A721A047A for ; Tue, 10 Jan 2023 15:28:40 +0000 (UTC) X-FDA: 80339271600.17.C3C8FC9 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by imf28.hostedemail.com (Postfix) with ESMTP id CC407C001C for ; Tue, 10 Jan 2023 15:28:37 +0000 (UTC) Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=0rNcWETB; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=NIaSkvyV; dmarc=none; spf=pass (imf28.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.28 as permitted sender) smtp.mailfrom=vbabka@suse.cz ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1673364518; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=zCUEdQONsr6wBAKkjfmGWORUwc+Xb+Iv9vr2u70QQas=; b=QQDxWxUKI827YvYO+8/bq6OJFqDQyvoZAbMoptzJco2cV7FSgR7C4qVQB8gEYBsB0FFzZt iPC3CdlscxovZMnoOGTn/eb87xfo8YJ3oOOj5O0ad/wBWBtEPfesuVA8x5fgtcyXzWO9Pb 8BRlU3GZdqKH/PUQ3NFATLWan1Ij6WA= ARC-Authentication-Results: i=1; imf28.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=0rNcWETB; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=NIaSkvyV; dmarc=none; spf=pass (imf28.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.28 as permitted sender) smtp.mailfrom=vbabka@suse.cz ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1673364518; a=rsa-sha256; cv=none; b=eycghctxG+KJ5eOwm0QnOM2PcQI/+TRAhEOgn8Q14pr4JoNdcSjcwzCn9gu++TQsdY27FP m/B4HJFLN6+2fWbUfupSSppf8ozTEd9j+0tNPFNxIuHhSFt1ddCNss+kaVPTq2rW+aYz8h Y+WJG87VdmfKpcXGkjqtxueimU+baaM= 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-out1.suse.de (Postfix) with ESMTPS id 24BB36A933; Tue, 10 Jan 2023 15:28:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1673364516; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zCUEdQONsr6wBAKkjfmGWORUwc+Xb+Iv9vr2u70QQas=; b=0rNcWETBujBkpTo2FOJiCO6Dzw3wHTZBwW0FLfDP63LKcvrDqf2fmONEQq52wXJleGADmc D9LP3MqS5wcHlapbcYShkIicdQ/2eZXVXyuP/pEAqiHw942wWFeUg1gszNNiJA551WhGEx oJ/0ncLe+D91Y/TJ5WgK4Y1350Z2dsU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1673364516; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zCUEdQONsr6wBAKkjfmGWORUwc+Xb+Iv9vr2u70QQas=; b=NIaSkvyVqtImLx18TTtfJVjj4IS05yiD7lHOvdplKDfX1xxMkPV5mTHlzbFOpUIzW2Z13U qUZ6QPv1GLp8SJBA== 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 F014213338; Tue, 10 Jan 2023 15:28:35 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id J7DZOSOEvWPoAQAAMHmgww (envelope-from ); Tue, 10 Jan 2023 15:28:35 +0000 Message-ID: <00e07f2f-6ba1-a95d-eb99-5c659ac199ed@suse.cz> Date: Tue, 10 Jan 2023 16:28:35 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Subject: Re: [PATCH 3/7] mm/page_alloc: Explicitly record high-order atomic allocations in alloc_flags Content-Language: en-US To: Mel Gorman , Linux-MM Cc: Andrew Morton , Michal Hocko , NeilBrown , Thierry Reding , Matthew Wilcox , LKML References: <20230109151631.24923-1-mgorman@techsingularity.net> <20230109151631.24923-4-mgorman@techsingularity.net> From: Vlastimil Babka In-Reply-To: <20230109151631.24923-4-mgorman@techsingularity.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: CC407C001C X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: 9mxhbi1ywu75it4bt9re5qhtoge3osa6 X-HE-Tag: 1673364517-861334 X-HE-Meta: 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 Zr4h9/vV F95rA+TP+4IbOukzXhAJ80RZtAPnB8lUg7GvnbbspO3Seh4qPXxsfcjL12w== 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 1/9/23 16:16, Mel Gorman wrote: > A high-order ALLOC_HARDER allocation is assumed to be atomic. While that > is accurate, it changes later in the series. In preparation, explicitly > record high-order atomic allocations in gfp_to_alloc_flags(). There is > a slight functional change in that OOM handling avoids using high-order > reserve until it has to. > > Signed-off-by: Mel Gorman Acked-by: Vlastimil Babka