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[2620:137:e000::1:20]) by mx.google.com with ESMTP id qa40-20020a17090786a800b007307fa2da78si9681915ejc.450.2022.08.03.22.48.32; Wed, 03 Aug 2022 22:49:00 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@bytedance-com.20210112.gappssmtp.com header.s=20210112 header.b=7wQdto35; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=bytedance.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238610AbiHDFgr (ORCPT + 99 others); Thu, 4 Aug 2022 01:36:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230381AbiHDFgp (ORCPT ); Thu, 4 Aug 2022 01:36:45 -0400 Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 75BBD4D4E6 for ; Wed, 3 Aug 2022 22:36:44 -0700 (PDT) Received: by mail-pl1-x631.google.com with SMTP id x10so17685469plb.3 for ; Wed, 03 Aug 2022 22:36:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc; bh=t7lbFj4Rs8t7sIwySKc3fC7UKl81tEI+QoQd6Zyqhzc=; b=7wQdto35gKNdGRbQVQD5Va63j/qcvZzI3WhdH5fWIFVQK6nvqeoDlCTofv+cllcDo3 OalQoTZt9vBhiQ7j1lVQwXnZ1rpYA/1r6JeMthLZlsLdjKGibw76HpCn0DoV8NBEzoL5 VCjGXBpEfDQimUBA/wqjoQiXK+DkSW2I72PyH2oAgpop4qElvUKSmsT2YIdKwQNliLHK y6D8S9EbYbHfO7uNOFWHXtFkH7mY0ziyF7AvqruinUa0jValsPz4qROyC/K2jn7htCwH 5Fkp1VSxRcyij4qJmyNKGU1VgrBnDFAdDR9P6ybV0v2PMZgHf01ipaFPP2j1ufT4UMBq DIKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc; bh=t7lbFj4Rs8t7sIwySKc3fC7UKl81tEI+QoQd6Zyqhzc=; b=qOtIkIx03+n/xkE97mc9MLLkwzcjKl12QYPGB3H96TqWsMfSABbaC3VcFWMwNS8oR+ q4L02tHZ0jXzPoexIBXPJTsiB9GRDCmUsvXTsul5a+J+I+qn9UlCuh1hlYlyJMqekWJa CXDQv2b64ZF82rlYMQmRPDa+bZ7DoAirkbsOV7+lUX9Utm2SLu8RyNG/99xJWN574+Lp +YFdYNgSzXwl+91vkmPoH2uCsJwvwwsElRiull04h6PWB9OBZCugFISb/zdUZicS3dm9 B8adtq+RCOlXAEenmED/Jm2e6Y0oyjqpGU0a/EX3bDLg6WFcQ6di7lYmvAMBWUNccUw7 yfFg== X-Gm-Message-State: ACgBeo1156Ks9slpF6JvkdLfMt7MiJwT9Fz4n6iOKL+/iEyZTMus37FR KsG9qUUhg1ImZOWTrCSutZdmndBBNtzY5kvdCZRpMg== X-Received: by 2002:a17:902:b617:b0:16c:bd91:22eb with SMTP id b23-20020a170902b61700b0016cbd9122ebmr305710pls.108.1659591403990; Wed, 03 Aug 2022 22:36:43 -0700 (PDT) MIME-Version: 1.0 References: <20220803025121.47018-1-wuyun.abel@bytedance.com> In-Reply-To: <20220803025121.47018-1-wuyun.abel@bytedance.com> From: Muchun Song Date: Thu, 4 Aug 2022 13:36:08 +0800 Message-ID: Subject: Re: [PATCH] mm/page_alloc: only search higher order when fallback To: Abel Wu Cc: Andrew Morton , Vlastimil Babka , Michal Hocko , Mel Gorman , Linux Memory Management List , LKML Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 3, 2022 at 10:51 AM Abel Wu wrote: > > It seems unnecessary to search pages with order < alloc_order in > fallback allocation. > > Signed-off-by: Abel Wu Reviewed-by: Muchun Song Thanks.