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[2620:137:e000::1:20]) by mx.google.com with ESMTP id dd3-20020a1709069b8300b006fe9e9ed643si19156803ejc.48.2022.07.05.15.02.20; Tue, 05 Jul 2022 15:02:45 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linux-foundation.org header.s=korg header.b=bLd4UNH9; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232160AbiGEVUF (ORCPT + 99 others); Tue, 5 Jul 2022 17:20:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50162 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231842AbiGEVUE (ORCPT ); Tue, 5 Jul 2022 17:20:04 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 302B214037 for ; Tue, 5 Jul 2022 14:20:04 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id E894FB8199F for ; Tue, 5 Jul 2022 21:20:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 586A2C341C7; Tue, 5 Jul 2022 21:20:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1657056001; bh=GuMN04dM0yPy/T7mcoypjTe3KAFdKDQ5GLqvAJa+Hn0=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=bLd4UNH9Hv6qP6cPuZH1KeLmWgLGqLsg9YNVjQrobGOajvvvCimp58tSwzK0ZGbO4 6+7d7cE5vxvBsIZF63YxJL0SE0tJk7GUNJOVTkBUYXvUkhfwjRyATyVje3zi83ZyXi nfTyVsPEXdlbk6plXBgExryQgBmCacImhFRh5Jyw= Date: Tue, 5 Jul 2022 14:20:00 -0700 From: Andrew Morton To: Patrick Wang Cc: dennis@kernel.org, tj@kernel.org, cl@linux.com, catalin.marinas@arm.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm: percpu: use kmemleak_ignore_phys() instead of kmemleak_free() Message-Id: <20220705142000.4679acaaf1238a73a555ea58@linux-foundation.org> In-Reply-To: <20220705113158.127600-1-patrick.wang.shcn@gmail.com> References: <20220705113158.127600-1-patrick.wang.shcn@gmail.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 5 Jul 2022 19:31:58 +0800 Patrick Wang wrote: > Kmemleak recently added a rbtree to store the objects > allocted with physical address. Those objects can't be > freed with kmemleak_free(). Use kmemleak_ignore_phys() > instead of kmemleak_free() for those objects. Thanks. What are the user-visible runtime effects of this? And are we able to identify a commit for the Fixes: line?