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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 472DFC433EF for ; Mon, 9 May 2022 11:01:14 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CFBC06B0078; Mon, 9 May 2022 07:01:13 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C839E6B007B; Mon, 9 May 2022 07:01:13 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AFB556B007D; Mon, 9 May 2022 07:01:13 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 9D36F6B0078 for ; Mon, 9 May 2022 07:01:13 -0400 (EDT) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 7E8183066B for ; Mon, 9 May 2022 11:01:13 +0000 (UTC) X-FDA: 79445912826.25.9B12636 Received: from mail-pl1-f175.google.com (mail-pl1-f175.google.com [209.85.214.175]) by imf08.hostedemail.com (Postfix) with ESMTP id 464B216008A for ; Mon, 9 May 2022 11:01:00 +0000 (UTC) Received: by mail-pl1-f175.google.com with SMTP id s14so13508315plk.8 for ; Mon, 09 May 2022 04:01:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Tr6+NBI5Dp7/pv2IhiUO3+bTmtkrDRJXLmbHS2KDzto=; b=29UqZuhw9+M3t42ulPc2ZSmZykQBVXN33MMQFuKE/0R1Kyd39m/lC7COmCnwOidfAn Q267MfGBvY6H1Sqo7KBGDIh2ogS6Nvs0Vp2+NTBA6iHpGp0Vqv7b9wjdw20bZhaIhYme MUnYF0YnyGufZYUokA6v2jORmdAYEHKj1mZ4qiBRigG706w+qBN6N0Dj/pkxfuyl4sm1 nvjZDHIZPMD2JDnE6iw3Cp709ZCkXTre51LDkijO2HYNDuzVH89m5rzNiWlI2QuBb6a3 6H38ONV6LkPtY2fNEoyzRQnQFgZSjmYNH6A8j3Mez/Sp4GRaKiOv8V9Ck/XrnEg7jFXK XbjQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Tr6+NBI5Dp7/pv2IhiUO3+bTmtkrDRJXLmbHS2KDzto=; b=T7jTrfU4Tk0JlE6IpWVZPVo6pnMP/bx1aMUSeG/c5RLLKiY0fOoxP8aWQ9tsG2J1Z0 +7UO/V3YQkeg1MDp88TCvbXyM5Fzk9H/s8UOOxQOi5uc5LCOAti9jJY4Z8z2q/rCeuOh 3B5ACi/y0nNCGhj/K1KxFmgHrDZ5NoE5idpRi1ZhWtYLdMhhEuu8y4/xUQ1PMztfp4Oh kJQhgPFTWCuweRxh/jOBj2uZ2+mQR868kiQ3QS0LFCMosJfPYomQlTwUWhZPfUzzTYLL bNOb9ItQV5d16NXYBRvcH0RiISRlNPOC87PtYry/MpLJ+gR0GmI3tbZ4hNCyLsxe8mpL uDWQ== X-Gm-Message-State: AOAM530c77vCuwk+xDNjgZCZ/I8dMT090g/9sAyJoSD3Zff+DCjubPUg nGd/1/mDeSAQzovKc4IrptJxXw== X-Google-Smtp-Source: ABdhPJyU6HCZrGSz6lqIXae9RRYvrGcjZLnJUViQxdva/SCNkBkiHGP9a4t1FymjNKczWy+XWRGMIw== X-Received: by 2002:a17:90b:38c7:b0:1dc:77aa:e3d5 with SMTP id nn7-20020a17090b38c700b001dc77aae3d5mr25428577pjb.51.1652094071883; Mon, 09 May 2022 04:01:11 -0700 (PDT) Received: from always-x1.www.tendawifi.com ([139.177.225.239]) by smtp.gmail.com with ESMTPSA id n12-20020a170902968c00b0015e8d4eb244sm6813303plp.142.2022.05.09.04.01.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 May 2022 04:01:11 -0700 (PDT) From: zhenwei pi To: akpm@linux-foundation.org, naoya.horiguchi@nec.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, zhenwei pi Subject: [PATCH v2 4/5] mm/hwpoison: disable hwpoison filter during removing Date: Mon, 9 May 2022 18:56:40 +0800 Message-Id: <20220509105641.491313-5-pizhenwei@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220509105641.491313-1-pizhenwei@bytedance.com> References: <20220509105641.491313-1-pizhenwei@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: jc7iy4rs5161sxxd151tg5g48i76yga9 Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=bytedance-com.20210112.gappssmtp.com header.s=20210112 header.b=29UqZuhw; spf=pass (imf08.hostedemail.com: domain of pizhenwei@bytedance.com designates 209.85.214.175 as permitted sender) smtp.mailfrom=pizhenwei@bytedance.com; dmarc=pass (policy=none) header.from=bytedance.com X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 464B216008A X-HE-Tag: 1652094060-986925 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: hwpoison filter is enabled by hwpoison-inject module, after removing this module, hwpoison filter still works. What is worse, user can not find the debugfs entries to know this. Disable the hwpoison filter during removing hwpoison-inject module. Signed-off-by: zhenwei pi --- mm/hwpoison-inject.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c index bb0cea5468cb..5c0cddd81505 100644 --- a/mm/hwpoison-inject.c +++ b/mm/hwpoison-inject.c @@ -65,6 +65,7 @@ DEFINE_DEBUGFS_ATTRIBUTE(unpoison_fops, NULL, hwpoison_unpoison, "%lli\n"); static void pfn_inject_exit(void) { + hwpoison_filter_enable = 0; debugfs_remove_recursive(hwpoison_dir); } -- 2.20.1