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 0A87FC433F5 for ; Fri, 4 Mar 2022 13:58:23 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5F2E28D0002; Fri, 4 Mar 2022 08:58:23 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 57B638D0001; Fri, 4 Mar 2022 08:58:23 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 41D808D0002; Fri, 4 Mar 2022 08:58:23 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0139.hostedemail.com [216.40.44.139]) by kanga.kvack.org (Postfix) with ESMTP id 30C7F8D0001 for ; Fri, 4 Mar 2022 08:58:23 -0500 (EST) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id D3AC38249980 for ; Fri, 4 Mar 2022 13:58:22 +0000 (UTC) X-FDA: 79206858444.20.55BE640 Received: from mail-yb1-f171.google.com (mail-yb1-f171.google.com [209.85.219.171]) by imf03.hostedemail.com (Postfix) with ESMTP id 3B49420010 for ; Fri, 4 Mar 2022 13:58:22 +0000 (UTC) Received: by mail-yb1-f171.google.com with SMTP id g1so17018589ybe.4 for ; Fri, 04 Mar 2022 05:58:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=8OAmWvG3KlYliyUdPO8+7WtwcRcsO7IgmHEGERM18j4=; b=LtlQCrh+7W8CujhTYtC7bpijhmuzbaa1k1zjs0SgpFyqUGRz8WOt0uJU1tofv37emS j0Tc03GuHP6RyJzJBhbyuLl2jiVuDpbNkZwj7M4r6ZvCYcmRc4qGQi8N6bWBNeUR2CuW D/cqfnLJo6m+iElu3pweUWbvFYMY14FIK/OuTQYG+yyE9AYAUR5lDV2IZy1m5bMTd9X2 dYi9lSH59nmlllOJcAsdLEE8a1d+vXu3tAI8SbJYzjyhRHNl4hrZT65Bu/GWWl1go34g 3q137hVTNkjyTxNZtSwqVN/uroD1Cmur54Dc2LMUGuLPPKJSCikk1kRG2ooomhSppknI QKvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=8OAmWvG3KlYliyUdPO8+7WtwcRcsO7IgmHEGERM18j4=; b=sT7shVZc4bG41rKf0AgEUjtkfX+9QKGYuhGu1NNplPL9yM3QY4VRTOQgRH7UqrirRK /Aw5UcZLO05cktA1lFgsEmKPb5GaZc0YPCpP3RRda9NkNT4zfTnyyqYFqwEqS2rQJFxw XEKHqUf8HN8D/TcKevTid5eJOL1dAxDPIAEJkWyAoAu6zMVJb1iAuuGgDRia5ytIjVRp YUFHvfpvFBv5QWGNNMwbbgc44/4YFmuF8Cq6OjtVjZTuRErQi7R79ut+UjrGs5T1Xwp8 BPS6BW3j4hSID9/c5p+XlWtUceI44udnwX+F+DcHlCgfBnqrv6OXQb9cCn6PLZMmfKnb c5Rw== X-Gm-Message-State: AOAM532LJTSzZCYLNGEIfHMOCtgiGVrm5rz+algktVkhaioIuQ3lviga hFoyRXXMr5HAdT32YP9b/YvfPiTUb6QBTlPoeBT9TQ== X-Google-Smtp-Source: ABdhPJylq45Riicfu2OMlNkEtOyToXUDF13nXxVXclNZnwOWrHQo3TxTofddVY8hVSj1+0Vyn3qlczgB0QxFxRe3bOc= X-Received: by 2002:a25:951:0:b0:628:db03:1132 with SMTP id u17-20020a250951000000b00628db031132mr4723852ybm.132.1646402301511; Fri, 04 Mar 2022 05:58:21 -0800 (PST) MIME-Version: 1.0 References: <20220304093409.25829-1-linmiaohe@huawei.com> <20220304093409.25829-9-linmiaohe@huawei.com> In-Reply-To: <20220304093409.25829-9-linmiaohe@huawei.com> From: Muchun Song Date: Fri, 4 Mar 2022 21:57:34 +0800 Message-ID: Subject: Re: [PATCH 08/16] mm/migration: avoid unneeded nodemask_t initialization To: Miaohe Lin Cc: Andrew Morton , Mike Kravetz , Yang Shi , Matthew Wilcox , Huang Ying , Zi Yan , Minchan Kim , Alistair Popple , ave.hansen@linux.intel.com, o451686892@gmail.com, Mina Almasry , John Hubbard , Ralph Campbell , Peter Xu , =?UTF-8?B?SE9SSUdVQ0hJIE5BT1lBKOWggOWPoyDnm7TkuZ8p?= , Michal Hocko , riel@redhat.com, Linux Memory Management List , LKML Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 3B49420010 X-Rspam-User: Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=bytedance-com.20210112.gappssmtp.com header.s=20210112 header.b=LtlQCrh+; spf=pass (imf03.hostedemail.com: domain of songmuchun@bytedance.com designates 209.85.219.171 as permitted sender) smtp.mailfrom=songmuchun@bytedance.com; dmarc=pass (policy=none) header.from=bytedance.com X-Stat-Signature: ti5974waiqdrdhwt9agza6i7fdxn1azd X-HE-Tag: 1646402302-664958 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 Fri, Mar 4, 2022 at 5:35 PM Miaohe Lin wrote: > > Avoid unneeded next_pass and this_pass initialization as they're always > set before using to save possible cpu cycles when there are plenty of > nodes in the system. > > Signed-off-by: Miaohe Lin Reviewed-by: Muchun Song Thanks.