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=-7.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=no 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 29D62C433E2 for ; Mon, 31 Aug 2020 02:24:09 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id EA0E32071B for ; Mon, 31 Aug 2020 02:24:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EA0E32071B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 59BDB6B0003; Sun, 30 Aug 2020 22:24:05 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4F8866B0007; Sun, 30 Aug 2020 22:24:05 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 280466B0003; Sun, 30 Aug 2020 22:24:05 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id F045E6B0006 for ; Sun, 30 Aug 2020 22:24:04 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id AB1A08248068 for ; Mon, 31 Aug 2020 02:24:04 +0000 (UTC) X-FDA: 77209268808.13.badge42_3b0d8a72708c Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin13.hostedemail.com (Postfix) with ESMTP id 7EAD018140B67 for ; Mon, 31 Aug 2020 02:24:04 +0000 (UTC) X-HE-Tag: badge42_3b0d8a72708c X-Filterd-Recvd-Size: 2080 Received: from out30-43.freemail.mail.aliyun.com (out30-43.freemail.mail.aliyun.com [115.124.30.43]) by imf41.hostedemail.com (Postfix) with ESMTP for ; Mon, 31 Aug 2020 02:24:02 +0000 (UTC) X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R111e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01358;MF=richard.weiyang@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0U7J4DAK_1598840637; Received: from localhost(mailfrom:richard.weiyang@linux.alibaba.com fp:SMTPD_---0U7J4DAK_1598840637) by smtp.aliyun-inc.com(127.0.0.1); Mon, 31 Aug 2020 10:23:57 +0800 From: Wei Yang To: mike.kravetz@oracle.com, akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, bhe@redhat.com, Wei Yang Subject: [Patch v3 0/7] mm/hugetlb: code refine and simplification Date: Mon, 31 Aug 2020 10:23:44 +0800 Message-Id: <20200831022351.20916-1-richard.weiyang@linux.alibaba.com> X-Mailer: git-send-email 2.20.1 (Apple Git-117) MIME-Version: 1.0 X-Rspamd-Queue-Id: 7EAD018140B67 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 Content-Transfer-Encoding: quoted-printable 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: Following are some cleanup for hugetlb. Simple test with tools/testing/selftests/vm/map_hugetlb pass. v3: * rebase on v5.9-rc2 which adjust the last patch a little v2: * drop 5/6/10 since similar patches are merged or under review. * adjust 2 based on comment from Mike Kravetz Wei Yang (7): mm/hugetlb: not necessary to coalesce regions recursively mm/hugetlb: remove VM_BUG_ON(!nrg) in get_file_region_entry_from_cache() mm/hugetlb: use list_splice to merge two list at once mm/hugetlb: count file_region to be added when regions_needed !=3D NULL mm/hugetlb: a page from buddy is not on any list mm/hugetlb: narrow the hugetlb_lock protection area during preparing huge page mm/hugetlb: take the free hpage during the iteration directly mm/hugetlb.c | 71 ++++++++++++++++++++++------------------------------ 1 file changed, 30 insertions(+), 41 deletions(-) --=20 2.20.1 (Apple Git-117)