From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753229AbdJRNF5 (ORCPT ); Wed, 18 Oct 2017 09:05:57 -0400 Received: from mx2.suse.de ([195.135.220.15]:35471 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750992AbdJRNFz (ORCPT ); Wed, 18 Oct 2017 09:05:55 -0400 Date: Wed, 18 Oct 2017 15:05:51 +0200 (CEST) From: Miroslav Benes To: Joe Lawrence cc: live-patching@vger.kernel.org, linux-kernel@vger.kernel.org, Josh Poimboeuf , Jessica Yu , Jiri Kosina , Petr Mladek , Chris J Arges Subject: Re: [PATCH v6 1/3] livepatch: add (un)patch callbacks In-Reply-To: <1507921723-1996-2-git-send-email-joe.lawrence@redhat.com> Message-ID: References: <1507921723-1996-1-git-send-email-joe.lawrence@redhat.com> <1507921723-1996-2-git-send-email-joe.lawrence@redhat.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 List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 13 Oct 2017, Joe Lawrence wrote: > Provide livepatch modules a klp_object (un)patching notification > mechanism. Pre and post-(un)patch callbacks allow livepatch modules to > setup or synchronize changes that would be difficult to support in only > patched-or-unpatched code contexts. > > Callbacks can be registered for target module or vmlinux klp_objects, > but each implementation is klp_object specific. > > - Pre-(un)patch callbacks run before any (un)patching transition > starts. > > - Post-(un)patch callbacks run once an object has been (un)patched and > the klp_patch fully transitioned to its target state. > > Example use cases include modification of global data and registration > of newly available services/handlers. > > See Documentation/livepatch/callbacks.txt for details and > samples/livepatch/ for examples. > > Signed-off-by: Joe Lawrence Acked-by: Miroslav Benes Miroslav