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 X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D6E8C4363D for ; Tue, 22 Sep 2020 13:57:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5C76F20936 for ; Tue, 22 Sep 2020 13:57:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726767AbgIVN5Z (ORCPT ); Tue, 22 Sep 2020 09:57:25 -0400 Received: from mx2.suse.de ([195.135.220.15]:33712 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726728AbgIVN5N (ORCPT ); Tue, 22 Sep 2020 09:57:13 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 20B9AB12B; Tue, 22 Sep 2020 13:57:48 +0000 (UTC) From: Oscar Salvador To: akpm@linux-foundation.org Cc: aris@ruivo.org, naoya.horiguchi@nec.com, mhocko@kernel.org, tony.luck@intel.com, cai@lca.pw, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Oscar Salvador Subject: [PATCH v7 12/14] mm,hwpoison: introduce MF_MSG_UNSPLIT_THP Date: Tue, 22 Sep 2020 15:56:48 +0200 Message-Id: <20200922135650.1634-13-osalvador@suse.de> X-Mailer: git-send-email 2.13.7 In-Reply-To: <20200922135650.1634-1-osalvador@suse.de> References: <20200922135650.1634-1-osalvador@suse.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Naoya Horiguchi 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. Signed-off-by: Naoya Horiguchi Signed-off-by: Oscar Salvador --- include/linux/mm.h | 1 + include/ras/ras_event.h | 3 +++ mm/memory-failure.c | 5 ++++- 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 61a80384afd3..2c09b3f2d912 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3054,6 +3054,7 @@ enum mf_action_page_type { MF_MSG_BUDDY, MF_MSG_BUDDY_2ND, MF_MSG_DAX, + MF_MSG_UNSPLIT_THP, MF_MSG_UNKNOWN, }; diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h index 36c5c5e38c1d..0bdbc0d17d2f 100644 --- a/include/ras/ras_event.h +++ b/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" ) /* diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 087f070b06b5..963fd9af23ab 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -582,6 +582,7 @@ static const char * const action_page_types[] = { [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, int flags) } 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); } -- 2.26.2