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[2620:137:e000::1:20]) by mx.google.com with ESMTP id e2-20020a056402148200b00463d1e263a9si3357381edv.328.2022.11.18.09.17.40; Fri, 18 Nov 2022 09:18:05 -0800 (PST) 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=@kernel.org header.s=k20201202 header.b=aRZ9CdGo; 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; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235366AbiKRRPD (ORCPT + 90 others); Fri, 18 Nov 2022 12:15:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235177AbiKRRPC (ORCPT ); Fri, 18 Nov 2022 12:15:02 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87BEBBED; Fri, 18 Nov 2022 09:15:01 -0800 (PST) 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 50797B824D4; Fri, 18 Nov 2022 17:15:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 19318C4347C; Fri, 18 Nov 2022 17:14:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668791699; bh=aGeNjGPP8dZqmetYNEd9VnRo9dFM5dECRmcaKXKx9eY=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=aRZ9CdGoQcFqHGqM1EJ8/vLQtWJgf//zBNew9wpzdt1r4Grm7ONnH6wCnLT0Px1qr o69zcXpOLzA43jU9bl7mgZS8x+cn1vm+F5PTZGYDAqzHnPTH+yo3Dq7dIjA3ModHiM IPgz8DmBwvJ+cnveUFihaE/d9nqyNKWI5ECqCjD18hAmUC8rIisDARhZnd7kC3Ryh9 pdqmwAsc4zp+TrKMUEFLjS/bYNbEUaZnAOjD79L/lNniEYBufdWhqh3EWIOaaY/X7k S/hrZsYvIQ0sRhlU+cGkkJGsR3D/4Y+OJA1gE1094VmFY6vcHZsM64lQH3BdGiqeEK GDwnUSKUEMVCw== Received: by mail-ed1-f47.google.com with SMTP id v17so8015406edc.8; Fri, 18 Nov 2022 09:14:59 -0800 (PST) X-Gm-Message-State: ANoB5pk76h61E9xqSUopAgoFYWmzO9hd//GGITA/dvJxAX8RPv6/0Hlc Gy7H14DP/8ydHbLn1X71smDfySceZdEEq/43YDo= X-Received: by 2002:a05:6402:538a:b0:458:fbd9:e3b1 with SMTP id ew10-20020a056402538a00b00458fbd9e3b1mr6950969edb.6.1668791697320; Fri, 18 Nov 2022 09:14:57 -0800 (PST) MIME-Version: 1.0 References: <20220901171252.2148348-1-song@kernel.org> In-Reply-To: From: Song Liu Date: Fri, 18 Nov 2022 09:14:44 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v6] livepatch: Clear relocation targets on a module removal To: Petr Mladek Cc: live-patching@vger.kernel.org, linux-kernel@vger.kernel.org, jpoimboe@kernel.org, jikos@kernel.org, mbenes@suse.cz, x86@kernel.org, joe.lawrence@redhat.com, linuxppc-dev@lists.ozlabs.org, Josh Poimboeuf Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS 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 Hi Petr, On Fri, Nov 18, 2022 at 8:24 AM Petr Mladek wrote: > > On Thu 2022-09-01 10:12:52, Song Liu wrote: [...] > > > > arch/powerpc/kernel/module_32.c | 10 ++++ > > arch/powerpc/kernel/module_64.c | 49 +++++++++++++++ > > arch/s390/kernel/module.c | 8 +++ > > arch/x86/kernel/module.c | 102 +++++++++++++++++++++++--------- > > include/linux/moduleloader.h | 7 +++ > > kernel/livepatch/core.c | 41 ++++++++++++- > > First, thanks a lot for working on this. > > I can't check or test the powerpc and s390 code easily. > > I am going to comment only x86 and generic code. It looks good > but it needs some changes to improve maintainability. Thanks for these comments and suggestions. I will work on them and send v4. Song