Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751343AbcCJM6x (ORCPT ); Thu, 10 Mar 2016 07:58:53 -0500 Received: from mx2.suse.de ([195.135.220.15]:40502 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750916AbcCJM6m (ORCPT ); Thu, 10 Mar 2016 07:58:42 -0500 Date: Thu, 10 Mar 2016 13:58:39 +0100 (CET) From: Jiri Kosina X-X-Sender: jkosina@pobox.suse.cz To: Petr Mladek cc: Torsten Duwe , jeyu@redhat.com, linux-kernel@vger.kernel.org, rostedt@goodmis.org, kamalesh@linux.vnet.ibm.com, linuxppc-dev@ozlabs.org, live-patching@vger.kernel.org, mbenes@suse.cz Subject: Re: [PATCH 2/2] ppc64le live patch: get rid of mini stack frame In-Reply-To: <20160310125116.GS10940@pathway.suse.cz> Message-ID: References: <20160309172821.GC27913@lst.de> <20160309173017.GD27913@lst.de> <20160310122508.GR10940@pathway.suse.cz> <20160310125116.GS10940@pathway.suse.cz> User-Agent: Alpine 2.00 (LNX 1167 2008-08-23) 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 Content-Length: 397 Lines: 13 On Thu, 10 Mar 2016, Petr Mladek wrote: > BTW: How is this solved in kretprobes? Or is it easier there? Is that really a problem? With kretprobes you're never performing the module->core->module transition in "one" redirection, right? The 'kretprobe_trampoline' is a global symbol, and hence everybody is generating 'global call' for it, and that's pretty much it. -- Jiri Kosina SUSE Labs