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 70512C4332F for ; Sat, 5 Mar 2022 14:49:17 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E7F4E6B00A6; Sat, 5 Mar 2022 09:49:16 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id E2CF16B00A7; Sat, 5 Mar 2022 09:49:16 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CA6376B00A8; Sat, 5 Mar 2022 09:49:16 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0038.hostedemail.com [216.40.44.38]) by kanga.kvack.org (Postfix) with ESMTP id BD2196B00A6 for ; Sat, 5 Mar 2022 09:49:16 -0500 (EST) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id D6B079BBC0 for ; Sat, 5 Mar 2022 14:49:14 +0000 (UTC) X-FDA: 79210615428.29.AFEA736 Received: from out30-45.freemail.mail.aliyun.com (out30-45.freemail.mail.aliyun.com [115.124.30.45]) by imf27.hostedemail.com (Postfix) with ESMTP id 86D4640004 for ; Sat, 5 Mar 2022 14:49:11 +0000 (UTC) X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R161e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04395;MF=dtcccc@linux.alibaba.com;NM=1;PH=DS;RN=7;SR=0;TI=SMTPD_---0V6HF7hU_1646491739; Received: from localhost.localdomain(mailfrom:dtcccc@linux.alibaba.com fp:SMTPD_---0V6HF7hU_1646491739) by smtp.aliyun-inc.com(127.0.0.1); Sat, 05 Mar 2022 22:49:08 +0800 From: Tianchen Ding To: Alexander Potapenko , Marco Elver , Dmitry Vyukov , Andrew Morton Cc: kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/2] provide the flexibility to enable KFENCE Date: Sat, 5 Mar 2022 22:48:56 +0800 Message-Id: <20220305144858.17040-1-dtcccc@linux.alibaba.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-Rspamd-Server: rspam10 X-Rspam-User: X-Stat-Signature: ef4s9diyxppbyzjbe6m1ur4noh5ddmrq Authentication-Results: imf27.hostedemail.com; dkim=none; spf=pass (imf27.hostedemail.com: domain of dtcccc@linux.alibaba.com designates 115.124.30.45 as permitted sender) smtp.mailfrom=dtcccc@linux.alibaba.com; dmarc=pass (policy=none) header.from=alibaba.com X-Rspamd-Queue-Id: 86D4640004 X-HE-Tag: 1646491751-356317 Content-Transfer-Encoding: quoted-printable 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: Hi, I'm sending v2 about (re-)enabling KFENCE. I've removed description about use case and just focus on flexibility. Thanks. v2: Take KFENCE_WARN_ON() into account. Do not allow re-enabling KFENCE if it once disabled by warn. Modify func names and comments. RFC/v1: https://lore.kernel.org/all/20220303031505.28495-1-dtcccc@linux.a= libaba.com/ Tianchen Ding (2): kfence: Allow re-enabling KFENCE after system startup kfence: Alloc kfence_pool after system startup mm/kfence/core.c | 114 ++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 93 insertions(+), 21 deletions(-) --=20 2.27.0