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 4BD15C433EF for ; Sat, 26 Mar 2022 07:55:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 77E106B0071; Sat, 26 Mar 2022 03:55:24 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 72D496B0073; Sat, 26 Mar 2022 03:55:24 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5F5106B0074; Sat, 26 Mar 2022 03:55:24 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0076.hostedemail.com [216.40.44.76]) by kanga.kvack.org (Postfix) with ESMTP id 505016B0071 for ; Sat, 26 Mar 2022 03:55:24 -0400 (EDT) Received: from smtpin17.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 02226A5A9A for ; Sat, 26 Mar 2022 07:55:23 +0000 (UTC) X-FDA: 79285777368.17.4F0E37A Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf01.hostedemail.com (Postfix) with ESMTP id 313E04002D for ; Sat, 26 Mar 2022 07:55:23 +0000 (UTC) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4KQWRq1QLKzfZQg; Sat, 26 Mar 2022 15:53:43 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Sat, 26 Mar 2022 15:55:18 +0800 Received: from [10.174.177.243] (10.174.177.243) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.21; Sat, 26 Mar 2022 15:55:18 +0800 Message-ID: Date: Sat, 26 Mar 2022 15:55:17 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.5.1 Subject: Re: [PATCH v4 1/2] Revert "powerpc: Set max_mapnr correctly" Content-Language: en-US To: , , , , , CC: , , , References: <20220216121109.157605-1-wangkefeng.wang@huawei.com> From: Kefeng Wang In-Reply-To: <20220216121109.157605-1-wangkefeng.wang@huawei.com> Content-Type: text/plain; charset="UTF-8"; format=flowed X-Originating-IP: [10.174.177.243] X-ClientProxiedBy: dggeme701-chm.china.huawei.com (10.1.199.97) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-Rspam-User: Authentication-Results: imf01.hostedemail.com; dkim=none; spf=pass (imf01.hostedemail.com: domain of wangkefeng.wang@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=wangkefeng.wang@huawei.com; dmarc=pass (policy=quarantine) header.from=huawei.com X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 313E04002D X-Stat-Signature: twjm97daf15tr4umtkhj5mu9cgtjod4j X-HE-Tag: 1648281323-104827 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: Hi maintainers=EF=BC=8C I saw the patches has been reviewed[1], could they be merged? Many thanks. [1] https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=3D2864= 64 On 2022/2/16 20:11, Kefeng Wang wrote: > This reverts commit 602946ec2f90d5bd965857753880db29d2d9a1e9. > > If CONFIG_HIGHMEM enabled, highmem will be disappeared with max_mapnr > set to max_low_pfn, see mem_init(), > > for (pfn =3D highmem_mapnr; pfn < max_mapnr; ++pfn) { > ... > free_highmem_page(); > } > > Revert it and will fix virt_addr_valid() check in the next patch. > > Cc: Christophe Leroy > Fixes: 602946ec2f90 ("powerpc: Set max_mapnr correctly") > Signed-off-by: Kefeng Wang > --- > v4: > - new patch > arch/powerpc/mm/mem.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c > index 8e301cd8925b..4d221d033804 100644 > --- a/arch/powerpc/mm/mem.c > +++ b/arch/powerpc/mm/mem.c > @@ -255,7 +255,7 @@ void __init mem_init(void) > #endif > =20 > high_memory =3D (void *) __va(max_low_pfn * PAGE_SIZE); > - set_max_mapnr(max_low_pfn); > + set_max_mapnr(max_pfn); > =20 > kasan_late_init(); > =20