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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BDB99C433F5 for ; Thu, 11 Nov 2021 07:33:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9D2A76124D for ; Thu, 11 Nov 2021 07:33:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230400AbhKKHgX (ORCPT ); Thu, 11 Nov 2021 02:36:23 -0500 Received: from mailgw01.mediatek.com ([60.244.123.138]:60714 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S229533AbhKKHgV (ORCPT ); Thu, 11 Nov 2021 02:36:21 -0500 X-UUID: a9bda5ee136f42ab8225119f601b11dc-20211111 X-UUID: a9bda5ee136f42ab8225119f601b11dc-20211111 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1598580129; Thu, 11 Nov 2021 15:33:31 +0800 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Thu, 11 Nov 2021 15:33:30 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs10n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Thu, 11 Nov 2021 15:33:30 +0800 From: Mark-PK Tsai To: CC: , , , , , , , , , Subject: Re: [PATCH v3 0/4] memblock, arm: fixes for freeing of the memory map Date: Thu, 11 Nov 2021 15:33:29 +0800 Message-ID: <20211111073329.13095-1-mark-pk.tsai@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210630071211.21011-1-rppt@kernel.org> References: <20210630071211.21011-1-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, The lts kernel also have this issue. (we use 5.4-lts kernel.) Currently we patch our custom kernel to select CONFIG_HOLES_IN_ZONE for arch arm. But I think the formal solution should backport to lts. Would you help to backport this patch series? (including the below commit) (024591f9a6e0 arm: ioremap: don't abuse pfn_valid() to check if pfn is in RAM) Thanks!