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 E7038ECAAD8 for ; Wed, 21 Sep 2022 09:16:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231434AbiIUJQr (ORCPT ); Wed, 21 Sep 2022 05:16:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231531AbiIUJQ0 (ORCPT ); Wed, 21 Sep 2022 05:16:26 -0400 Received: from out2.migadu.com (out2.migadu.com [188.165.223.204]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 775098E9AC for ; Wed, 21 Sep 2022 02:15:55 -0700 (PDT) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1663751751; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=y5ZLNbG63SlokUUFvz2qbP26Ghit9Hx14l1hW4m/kAM=; b=mBuJvW5lKIPZwgtyYdPiU/o0a3OFbU+urpRpUQDsbY+Tp08B7TP9qCzzu8lfjjUbNH8zQv uJx4fDx3Xq40CPRDZRPNKYKLK1UvTAIZulWhiYnF45CwAr4zYJP4V16AD9JZqyHCYAw3fC lLAwjeTpnrEVHwQpul6bIYi/pBJt+wc= From: Naoya Horiguchi To: linux-mm@kvack.org Cc: Andrew Morton , Miaohe Lin , David Hildenbrand , Mike Kravetz , Yang Shi , Oscar Salvador , Muchun Song , Jane Chu , Naoya Horiguchi , linux-kernel@vger.kernel.org Subject: [PATCH v3 0/4] mm, hwpoison: improve handling workload related to hugetlb and memory_hotplug Date: Wed, 21 Sep 2022 18:13:55 +0900 Message-Id: <20220921091359.25889-1-naoya.horiguchi@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Migadu-Auth-User: linux.dev Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This patchset tries to solve the issue among memory_hotplug, hugetlb and hwpoison. Based on the review over v2 by Miaohe (thank you!), 1/4 takes another approach to prevent hwpoisoned hugepages to be migrated (i.e. the corrupted data is accessed) in memory hotremove. In this patchset, memory hotplug handles hwpoison pages like below: - hwpoison pages should not prevent memory hotremove, - memory block with hwpoison pages should not be onlined. Any comments and feedbacks would be appreciated. Thanks, Naoya Horiguchi v1: https://lore.kernel.org/linux-mm/20220427042841.678351-1-naoya.horiguchi@linux.dev/T v2: https://lore.kernel.org/linux-mm/20220905062137.1455537-1-naoya.horiguchi@linux.dev/T --- Summary: Naoya Horiguchi (4): mm,hwpoison,hugetlb,memory_hotplug: hotremove memory section with hwpoisoned hugepage mm/hwpoison: move definitions of num_poisoned_pages_* to memory-failure.c mm/hwpoison: pass pfn to num_poisoned_pages_*() mm/hwpoison: introduce per-memory_block hwpoison counter arch/parisc/kernel/pdt.c | 5 ++-- drivers/base/memory.c | 36 +++++++++++++++++++++++++++++ include/linux/hugetlb.h | 4 ++-- include/linux/memory.h | 3 +++ include/linux/mm.h | 13 +++++++++++ include/linux/swapops.h | 24 ++------------------ mm/hugetlb.c | 4 ++-- mm/internal.h | 8 ------- mm/memory-failure.c | 59 +++++++++++++++++++++++++++--------------------- mm/sparse.c | 2 -- 10 files changed, 93 insertions(+), 65 deletions(-)