Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757602AbcLPPkS (ORCPT ); Fri, 16 Dec 2016 10:40:18 -0500 Received: from mx2.suse.de ([195.135.220.15]:57296 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754718AbcLPPkI (ORCPT ); Fri, 16 Dec 2016 10:40:08 -0500 Date: Fri, 16 Dec 2016 16:39:49 +0100 From: Petr Mladek To: Josh Poimboeuf Cc: Jessica Yu , Jiri Kosina , Miroslav Benes , linux-kernel@vger.kernel.org, live-patching@vger.kernel.org, Michael Ellerman , Heiko Carstens , x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Vojtech Pavlik , Jiri Slaby , Chris J Arges , Andy Lutomirski , Ingo Molnar , Peter Zijlstra Subject: Re: [PATCH v3 04/15] livepatch/x86: add TIF_PATCH_PENDING thread flag Message-ID: <20161216153949.GF393@pathway.suse.cz> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 553 Lines: 15 On Thu 2016-12-08 12:08:29, Josh Poimboeuf wrote: > Add the TIF_PATCH_PENDING thread flag to enable the new livepatch > per-task consistency model for x86_64. The bit getting set indicates > the thread has a pending patch which needs to be applied when the thread > exits the kernel. > > The bit is placed in the _TIF_ALLWORK_MASK macro, which results in > exit_to_usermode_loop() calling klp_update_patch_state() when it's set. > > Signed-off-by: Josh Poimboeuf Reviewed-by: Petr Mladek Best Regards, Petr