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 X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED59CC433DF for ; Tue, 7 Jul 2020 11:05:46 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9B758206B6 for ; Tue, 7 Jul 2020 11:05:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B758206B6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1CF646B0071; Tue, 7 Jul 2020 07:05:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1809A6B0073; Tue, 7 Jul 2020 07:05:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 06EFE6B0075; Tue, 7 Jul 2020 07:05:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0082.hostedemail.com [216.40.44.82]) by kanga.kvack.org (Postfix) with ESMTP id E49466B0071 for ; Tue, 7 Jul 2020 07:05:45 -0400 (EDT) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 9A4ED8248047 for ; Tue, 7 Jul 2020 11:05:45 +0000 (UTC) X-FDA: 77010999450.12.neck34_5504e3c26eb3 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin12.hostedemail.com (Postfix) with ESMTP id A78221800F073 for ; Tue, 7 Jul 2020 11:05:35 +0000 (UTC) X-HE-Tag: neck34_5504e3c26eb3 X-Filterd-Recvd-Size: 2359 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf10.hostedemail.com (Postfix) with ESMTP for ; Tue, 7 Jul 2020 11:05:35 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id DCDC2AE07; Tue, 7 Jul 2020 11:05:33 +0000 (UTC) Subject: Re: [PATCH v4 03/11] mm/hugetlb: unify migration callbacks To: js1304@gmail.com, Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@lge.com, Christoph Hellwig , Roman Gushchin , Mike Kravetz , Naoya Horiguchi , Michal Hocko , Joonsoo Kim References: <1594107889-32228-1-git-send-email-iamjoonsoo.kim@lge.com> <1594107889-32228-4-git-send-email-iamjoonsoo.kim@lge.com> From: Vlastimil Babka Message-ID: Date: Tue, 7 Jul 2020 13:05:31 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <1594107889-32228-4-git-send-email-iamjoonsoo.kim@lge.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: A78221800F073 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 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 7/7/20 9:44 AM, js1304@gmail.com wrote: > From: Joonsoo Kim > > There is no difference between two migration callback functions, > alloc_huge_page_node() and alloc_huge_page_nodemask(), except > __GFP_THISNODE handling. It's redundant to have two almost similar > functions in order to handle this flag. So, this patch tries to > remove one by introducing a new argument, gfp_mask, to > alloc_huge_page_nodemask(). > > After introducing gfp_mask argument, it's caller's job to provide correct > gfp_mask. So, every callsites for alloc_huge_page_nodemask() are changed > to provide gfp_mask. > > Note that it's safe to remove a node id check in alloc_huge_page_node() > since there is no caller passing NUMA_NO_NODE as a node id. > > Reviewed-by: Mike Kravetz > Signed-off-by: Joonsoo Kim Yeah, this version looks very good :) Reviewed-by: Vlastimil Babka Thanks!