From patchwork Fri Oct 16 02:44:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11840607 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CB5C014B4 for ; Fri, 16 Oct 2020 02:44:13 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7B9D9212CC for ; Fri, 16 Oct 2020 02:44:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="dchEq5Py" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7B9D9212CC Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 8C2BB94000F; Thu, 15 Oct 2020 22:44:12 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 82500940007; Thu, 15 Oct 2020 22:44:12 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6ECED94000F; Thu, 15 Oct 2020 22:44:12 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0156.hostedemail.com [216.40.44.156]) by kanga.kvack.org (Postfix) with ESMTP id 3E780940007 for ; Thu, 15 Oct 2020 22:44:12 -0400 (EDT) Received: from smtpin11.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id D2A33181AEF00 for ; Fri, 16 Oct 2020 02:44:11 +0000 (UTC) X-FDA: 77376244302.11.ducks85_07095ef27219 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin11.hostedemail.com (Postfix) with ESMTP id AE65C180F8B81 for ; Fri, 16 Oct 2020 02:44:11 +0000 (UTC) X-Spam-Summary: 1,0,0,a0777315233c2beb,d41d8cd98f00b204,akpm@linux-foundation.org,,RULES_HIT:41:355:379:800:960:966:967:973:988:989:1260:1345:1359:1381:1431:1437:1534:1543:1711:1730:1747:1777:1792:2196:2199:2393:2525:2559:2563:2682:2685:2859:2899:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3353:3867:3870:3871:3872:3874:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4043:4250:4321:4385:4605:5007:6261:6653:6737:7576:8660:8957:9025:9207:9545:10004:11026:11473:11658:11914:12043:12048:12297:12438:12517:12519:12555:12679:12986:13148:13230:13846:14093:14181:14721:14915:21060:21080:21094:21212:21323:21324:21451:21627:21939:21990:30054:30064,0,RBL:198.145.29.99:@linux-foundation.org:.lbl8.mailshell.net-64.100.201.201 62.2.0.100;04yrjowh4e8sfqgbc3mte6zuxod19yc613sp1qkpyei1zutiqnx4e3kguj76qeq.iw7pg7pjzqqa359ex3urew4c3w1cwnxyrr3zkjiqhhmjcndo8ffhcp5zd9m6u9g.6-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0, MSF:not X-HE-Tag: ducks85_07095ef27219 X-Filterd-Recvd-Size: 4671 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf47.hostedemail.com (Postfix) with ESMTP for ; Fri, 16 Oct 2020 02:44:11 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7D0432087D; Fri, 16 Oct 2020 02:44:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602816250; bh=WkPfDQl+LMteNki4BkJJZd5tl3AoBQE0gXUj2yJCvQk=; h=Date:From:To:Subject:In-Reply-To:From; b=dchEq5PyR+NmEXdZTm6H7lH991UNZdHq4RVkw3X7bHAhqhUECCe3xR7B0UKUb02Vs 6WGglS2a6vIKIr2Xvu5UAqzWO2UiMDKwy3sRy1ueOsriPJmx7vUui7Dui3+Uf9xYeH RYf23OTmaOs+nAGjZFxGqOzAqkSdr5zMyj/sqX5Y= Date: Thu, 15 Oct 2020 19:44:08 -0700 From: Andrew Morton To: akpm@linux-foundation.org, aneesh.kumar@linux.ibm.com, aneesh.kumar@linux.vnet.ibm.com, aris@ruivo.org, cai@lca.pw, dave.hansen@intel.com, david@redhat.com, linux-mm@kvack.org, mhocko@kernel.org, mike.kravetz@oracle.com, mm-commits@vger.kernel.org, naoya.horiguchi@nec.com, osalvador@suse.com, osalvador@suse.de, tony.luck@intel.com, torvalds@linux-foundation.org, zeil@yandex-team.ru Subject: [patch 052/156] mm,hwpoison: introduce MF_MSG_UNSPLIT_THP Message-ID: <20201016024408.nk0B4cbzJ%akpm@linux-foundation.org> In-Reply-To: <20201015192732.f448da14e9854c7cb7299956@linux-foundation.org> User-Agent: s-nail v14.8.16 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: From: Naoya Horiguchi Subject: mm,hwpoison: introduce MF_MSG_UNSPLIT_THP memory_failure() is supposed to call action_result() when it handles a memory error event, but there's one missing case. So let's add it. I find that include/ras/ras_event.h has some other MF_MSG_* undefined, so this patch also adds them. Link: https://lkml.kernel.org/r/20200922135650.1634-13-osalvador@suse.de Signed-off-by: Naoya Horiguchi Signed-off-by: Oscar Salvador Cc: "Aneesh Kumar K.V" Cc: Aneesh Kumar K.V Cc: Aristeu Rozanski Cc: Dave Hansen Cc: David Hildenbrand Cc: Dmitry Yakunin Cc: Michal Hocko Cc: Mike Kravetz Cc: Oscar Salvador Cc: Qian Cai Cc: Tony Luck Signed-off-by: Andrew Morton --- include/linux/mm.h | 1 + include/ras/ras_event.h | 3 +++ mm/memory-failure.c | 5 ++++- 3 files changed, 8 insertions(+), 1 deletion(-) --- a/include/linux/mm.h~mmhwpoison-introduce-mf_msg_unsplit_thp +++ a/include/linux/mm.h @@ -3064,6 +3064,7 @@ enum mf_action_page_type { MF_MSG_BUDDY, MF_MSG_BUDDY_2ND, MF_MSG_DAX, + MF_MSG_UNSPLIT_THP, MF_MSG_UNKNOWN, }; --- a/include/ras/ras_event.h~mmhwpoison-introduce-mf_msg_unsplit_thp +++ a/include/ras/ras_event.h @@ -361,6 +361,7 @@ TRACE_EVENT(aer_event, EM ( MF_MSG_POISONED_HUGE, "huge page already hardware poisoned" ) \ EM ( MF_MSG_HUGE, "huge page" ) \ EM ( MF_MSG_FREE_HUGE, "free huge page" ) \ + EM ( MF_MSG_NON_PMD_HUGE, "non-pmd-sized huge page" ) \ EM ( MF_MSG_UNMAP_FAILED, "unmapping failed page" ) \ EM ( MF_MSG_DIRTY_SWAPCACHE, "dirty swapcache page" ) \ EM ( MF_MSG_CLEAN_SWAPCACHE, "clean swapcache page" ) \ @@ -373,6 +374,8 @@ TRACE_EVENT(aer_event, EM ( MF_MSG_TRUNCATED_LRU, "already truncated LRU page" ) \ EM ( MF_MSG_BUDDY, "free buddy page" ) \ EM ( MF_MSG_BUDDY_2ND, "free buddy page (2nd try)" ) \ + EM ( MF_MSG_DAX, "dax page" ) \ + EM ( MF_MSG_UNSPLIT_THP, "unsplit thp" ) \ EMe ( MF_MSG_UNKNOWN, "unknown page" ) /* --- a/mm/memory-failure.c~mmhwpoison-introduce-mf_msg_unsplit_thp +++ a/mm/memory-failure.c @@ -582,6 +582,7 @@ static const char * const action_page_ty [MF_MSG_BUDDY] = "free buddy page", [MF_MSG_BUDDY_2ND] = "free buddy page (2nd try)", [MF_MSG_DAX] = "dax page", + [MF_MSG_UNSPLIT_THP] = "unsplit thp", [MF_MSG_UNKNOWN] = "unknown page", }; @@ -1370,8 +1371,10 @@ int memory_failure(unsigned long pfn, in } if (PageTransHuge(hpage)) { - if (try_to_split_thp_page(p, "Memory Failure") < 0) + if (try_to_split_thp_page(p, "Memory Failure") < 0) { + action_result(pfn, MF_MSG_UNSPLIT_THP, MF_IGNORED); return -EBUSY; + } VM_BUG_ON_PAGE(!page_count(p), p); }