Received: by 10.223.185.116 with SMTP id b49csp1129150wrg; Wed, 14 Feb 2018 12:05:03 -0800 (PST) X-Google-Smtp-Source: AH8x224kRXkG+YXrOA00E4+8ZR+bvKLd8kQ+4diJq1F1rpAjata8gkITchar1iZVp36jI/7cWCr0 X-Received: by 10.101.82.130 with SMTP id y2mr166673pgp.68.1518638703168; Wed, 14 Feb 2018 12:05:03 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1518638703; cv=none; d=google.com; s=arc-20160816; b=Ci148Q4qjKlp+qc7KsVYt11tOf41u99RXcTDY7hAl38ic+Ho78jLwKuXJ3hdeRlK+X 3c7pufHNrfptj3MYibaQftkzdTcQmXEu5pujV7uwmyLOIRVD3PKMYAHcIpJV320gDsrq dLPl1lCCRoW2xIQ8oNVbAFQKAFBJpT8P81tUXfwUI2vThxZWcxgkxze3QnCSGKEDvKyB pQK860tdWPC+kdP8E2bjYM86qzSlhtqTyNc67hGvJl0ZZEsayDrHSmHlnpReADWEThu5 7FdIvp/4bKGvhGhgt5r0X+mEQuzB/KO0Eq5VGlAOV7ewzcAB2iU55AZ3X1pwZQmQH7n8 2n9Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:references :message-id:in-reply-to:subject:cc:to:from:date :arc-authentication-results; bh=qCcenOgdlnNDIIel0FtSf5fsFU2H+r1laQ71AWPEeg4=; b=FCND/aImp9nEabPhBUtH8bEN+CBmDYnlEgLowtKnWzfkmMRJq64A3d3YADENugv7ID zbs9kjMJ7OdTapOsYLg7NhNuyytlxa12Sa9kzUOGiWFXVaaVyLizdVngaIT/p2eJ3jX/ tRJgYL6/m3lO/NmNkK/eKCH/RF7Q+/rjPkqPREVty/NmeZGh0OCDu7TBXrF2p6LUnttg ZJFjFk65YTwHuwFn4DSBAJAtw/D4Fw/jmgLx6dQF87pl2L4TrQ+J3/EYetgJTkHbN/V+ 55v+XbDfiLuEupFDcL+jKQ3KaHiuNTXp05R2CW4TyxKdCe4c/lBKfCBi111ehPOoUjBi 1Msg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y8si2881366pge.391.2018.02.14.12.04.46; Wed, 14 Feb 2018 12:05:03 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1032293AbeBNQQl (ORCPT + 99 others); Wed, 14 Feb 2018 11:16:41 -0500 Received: from mx2.suse.de ([195.135.220.15]:43282 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1032074AbeBNQQk (ORCPT ); Wed, 14 Feb 2018 11:16:40 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 5E1BCAC40; Wed, 14 Feb 2018 16:16:38 +0000 (UTC) Date: Wed, 14 Feb 2018 17:16:37 +0100 (CET) From: Miroslav Benes To: Petr Mladek cc: Jiri Kosina , Josh Poimboeuf , Jason Baron , Joe Lawrence , Jessica Yu , Evgenii Shatokhin , live-patching@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v7 0/7] livepatch: Atomic replace feature In-Reply-To: <20180206103424.10829-1-pmladek@suse.com> Message-ID: References: <20180206103424.10829-1-pmladek@suse.com> User-Agent: Alpine 2.21 (LSU 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 6 Feb 2018, Petr Mladek wrote: > The atomic replace allows to create cumulative patches. They > are useful when you maintain many livepatches and want to remove > one that is lower on the stack. In addition it is very useful when > more patches touch the same function and there are dependencies > between them. So I ported my old silly kgraft modules to livepatch and it works well. It does not say that much, because the tests are really simple stupid, but at least something. Miroslav