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 32CE1C19F2B for ; Thu, 4 Aug 2022 09:39:57 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id B39558E0003; Thu, 4 Aug 2022 05:39:56 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id AE8248E0001; Thu, 4 Aug 2022 05:39:56 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9D7B28E0003; Thu, 4 Aug 2022 05:39:56 -0400 (EDT) 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 8C8E38E0001 for ; Thu, 4 Aug 2022 05:39:56 -0400 (EDT) Received: from smtpin30.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 57CCF1A0DD9 for ; Thu, 4 Aug 2022 09:39:56 +0000 (UTC) X-FDA: 79761413592.30.EDE3BFD Received: from outbound-smtp28.blacknight.com (outbound-smtp28.blacknight.com [81.17.249.11]) by imf02.hostedemail.com (Postfix) with ESMTP id C40B98000B for ; Thu, 4 Aug 2022 09:39:55 +0000 (UTC) Received: from mail.blacknight.com (pemlinmail05.blacknight.ie [81.17.254.26]) by outbound-smtp28.blacknight.com (Postfix) with ESMTPS id A1A51CCCCD for ; Thu, 4 Aug 2022 10:39:54 +0100 (IST) Received: (qmail 16661 invoked from network); 4 Aug 2022 09:39:54 -0000 Received: from unknown (HELO techsingularity.net) (mgorman@techsingularity.net@[84.203.198.246]) by 81.17.254.9 with ESMTPSA (AES256-SHA encrypted, authenticated); 4 Aug 2022 09:39:54 -0000 Date: Thu, 4 Aug 2022 10:39:48 +0100 From: Mel Gorman To: Abel Wu Cc: Andrew Morton , Vlastimil Babka , Michal Hocko , Muchun Song , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm/page_alloc: only search higher order when fallback Message-ID: <20220804093948.sq64wsfhtsbnsc3g@techsingularity.net> References: <20220803025121.47018-1-wuyun.abel@bytedance.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <20220803025121.47018-1-wuyun.abel@bytedance.com> ARC-Authentication-Results: i=1; imf02.hostedemail.com; dkim=none; spf=pass (imf02.hostedemail.com: domain of mgorman@techsingularity.net designates 81.17.249.11 as permitted sender) smtp.mailfrom=mgorman@techsingularity.net; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1659605995; a=rsa-sha256; cv=none; b=xQTI56jPdq6TWXs+U63TuKHVDcxHQuFRcXJ+2gFpMZNqCHK90neoKkZaDuPUzNQRC4vJF6 ORGASqynx4jjxCN8pNoQhk7fM3tJyGsZFOiSWD6wWrCXyB38FBPsooWKeWDP/LGxkpJaHi 8wbyl6WspFzNf2BMPLjzRxGBdZe6gvk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1659605995; 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: in-reply-to:in-reply-to:references:references; bh=F/WA1CMlp4GqTKewWIAQ3Q7Ap3kDKTEuPug99k9VNhY=; b=Ika51SdJtM+/ZYBkI91taSezfgBTP21vLzEpRHDoChoj6aGAAKaas5gAeSXOL6B3GB94Hi vRNOomD5ql2q3T66IntZ0UUC+fB/8l6h31TrFG1KjIzd8mbhqs9WG59b7D4bXzFf75q1Jm jZQsvi1iy6/dZC2hjgysbISFka6yVp8= X-Rspamd-Server: rspam09 X-Rspam-User: Authentication-Results: imf02.hostedemail.com; dkim=none; spf=pass (imf02.hostedemail.com: domain of mgorman@techsingularity.net designates 81.17.249.11 as permitted sender) smtp.mailfrom=mgorman@techsingularity.net; dmarc=none X-Stat-Signature: hgghp8h1ifr6dcxhiuqwywjqxi84wxaw X-Rspamd-Queue-Id: C40B98000B X-HE-Tag: 1659605995-195089 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, Aug 03, 2022 at 10:51:21AM +0800, Abel Wu wrote: > It seems unnecessary to search pages with order < alloc_order in > fallback allocation. > > Signed-off-by: Abel Wu Acked-by: Mel Gorman -- Mel Gorman SUSE Labs