From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932623AbXGOBa0 (ORCPT ); Sat, 14 Jul 2007 21:30:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755584AbXGOBaS (ORCPT ); Sat, 14 Jul 2007 21:30:18 -0400 Received: from tomts13-srv.bellnexxia.net ([209.226.175.34]:44234 "EHLO tomts13-srv.bellnexxia.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755658AbXGOBaQ (ORCPT ); Sat, 14 Jul 2007 21:30:16 -0400 Date: Sat, 14 Jul 2007 21:30:14 -0400 From: Mathieu Desnoyers To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org Cc: Andi Kleen , hch@infradead.org Subject: [PATCH] Text Edit Lock - x86_64 kerneldoc Message-ID: <20070715013014.GC23209@Krystal> References: <20070714012133.612727310@polymtl.ca> <20070714012412.960272115@polymtl.ca> <20070714233201.GJ18674@Krystal> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline In-Reply-To: <20070714233201.GJ18674@Krystal> X-Editor: vi X-Info: http://krystal.dyndns.org:8080 X-Operating-System: Linux/2.6.21.3-grsec (i686) X-Uptime: 21:29:31 up 7 days, 15:34, 2 users, load average: 0.19, 0.15, 0.12 User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Text Edit Lock - x86_64 kerneldoc Add kerneldoc to text edit lock x86_64 API. Signed-off-by: Mathieu Desnoyers CC: hch@infradead.org --- include/asm-x86_64/cacheflush.h | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) Index: linux-2.6-lttng/include/asm-x86_64/cacheflush.h =================================================================== --- linux-2.6-lttng.orig/include/asm-x86_64/cacheflush.h 2007-07-14 20:25:49.000000000 -0400 +++ linux-2.6-lttng/include/asm-x86_64/cacheflush.h 2007-07-14 20:25:50.000000000 -0400 @@ -32,8 +32,25 @@ void clflush_cache_range(void *addr, int #ifdef CONFIG_DEBUG_RODATA void mark_rodata_ro(void); -/* mark kernel text pages writable */ +/** + * kernel_text_mark_rw - Mark kernel text RW + * @address: location of the code + * @len: size of code to mark + * + * Mark the kernel text pages writable so they can safely written to. This is + * useful for code patching. +*/ + extern void kernel_text_mark_rw(unsigned long address, size_t len); + +/** + * kernel_text_unmark - Mark kernel text back to its original flags + * @address: location of the code + * @len: size of code to mark + * + * Mark the kernel text back to its original flags. + */ + extern void kernel_text_unmark(unsigned long address, size_t len); #else static inline void kernel_text_mark_rw(unsigned long address, size_t len) { } -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68