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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1571C38A02 for ; Tue, 12 Apr 2022 07:33:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352516AbiDLHd0 (ORCPT ); Tue, 12 Apr 2022 03:33:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42862 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354787AbiDLH0o (ORCPT ); Tue, 12 Apr 2022 03:26:44 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2B70F4704D; Tue, 12 Apr 2022 00:06:39 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B4F74616B3; Tue, 12 Apr 2022 07:06:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 42CD2C385A6; Tue, 12 Apr 2022 07:06:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649747198; bh=XwUz5NgVuhsGb/iOf7TIf0swvsE/bb+9ol3LL0KyTCY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0KbzelUKoU3NMLkf0ThG6UZ9ss4aDgLOWQQnIbDhBilVPHr8DgW1T1tgAPTcsrBfJ CFMEOxz2vmNwn9xi49E8WkJvBrQhEkFYEzA9I8iLBquHN7Z9K0xaiVQoXdeIGlvPg/ Rg19tiUksSQ6GFuf26zxcOPfimOt/O5V3r8qxV+U= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kefeng Wang , Christophe Leroy , "Erhard F." , Michael Ellerman Subject: [PATCH 5.16 277/285] Revert "powerpc: Set max_mapnr correctly" Date: Tue, 12 Apr 2022 08:32:14 +0200 Message-Id: <20220412062951.648724736@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220412062943.670770901@linuxfoundation.org> References: <20220412062943.670770901@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Kefeng Wang commit 1ff5c8e8c835e8a81c0868e3050c76563dd56a2c upstream. This reverts commit 602946ec2f90d5bd965857753880db29d2d9a1e9. If CONFIG_HIGHMEM is enabled, no highmem will be added with max_mapnr set to max_low_pfn, see mem_init(): for (pfn = highmem_mapnr; pfn < max_mapnr; ++pfn) { ... free_highmem_page(); } Now that virt_addr_valid() has been fixed in the previous commit, we can revert the change to max_mapnr. Fixes: 602946ec2f90 ("powerpc: Set max_mapnr correctly") Signed-off-by: Kefeng Wang Reviewed-by: Christophe Leroy Reported-by: Erhard F. [mpe: Update change log to reflect series reordering] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220406145802.538416-2-mpe@ellerman.id.au Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/mm/mem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -256,7 +256,7 @@ void __init mem_init(void) #endif high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); - set_max_mapnr(max_low_pfn); + set_max_mapnr(max_pfn); kasan_late_init();