From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753772Ab0IVN06 (ORCPT ); Wed, 22 Sep 2010 09:26:58 -0400 Received: from one.firstfloor.org ([213.235.205.2]:36669 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751365Ab0IVN05 (ORCPT ); Wed, 22 Sep 2010 09:26:57 -0400 From: Andi Kleen To: jbaron@redhat.com Cc: rostedt@goodmis.org, linux-kernel@vger.kernel.org, mingo@elte.hu, mathieu.desnoyers@polymtl.ca, hpa@zytor.com, tglx@linutronix.de, roland@redhat.com, rth@redhat.com, mhiramat@redhat.com, fweisbec@gmail.com, avi@redhat.com, davem@davemloft.net, vgoyal@redhat.com, sam@ravnborg.org, tony@bakeyournoodle.com, Andi Kleen Subject: [PATCH 1/2] Add for_each_module iterator function v2 Date: Wed, 22 Sep 2010 15:26:40 +0200 Message-Id: <1285162001-9556-1-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 1.7.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andi Kleen This is a generic function to iterate over all modules. To be used in the next patch. v2: Use module_mutex instead of preempt disabling Signed-off-by: Andi Kleen --- include/linux/module.h | 1 + kernel/module.c | 10 ++++++++++ 2 files changed, 11 insertions(+), 0 deletions(-) diff --git a/include/linux/module.h b/include/linux/module.h index 403ac26..809b6db 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -410,6 +410,7 @@ struct module *__module_address(unsigned long addr); bool is_module_address(unsigned long addr); bool is_module_percpu_address(unsigned long addr); bool is_module_text_address(unsigned long addr); +void for_each_module(void (*op)(struct module *, void *arg), void *arg); static inline int within_module_core(unsigned long addr, struct module *mod) { diff --git a/kernel/module.c b/kernel/module.c index eba1341..9e2a561 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -384,6 +384,16 @@ struct module *find_module(const char *name) } EXPORT_SYMBOL_GPL(find_module); +void for_each_module(void (*op)(struct module *, void *arg), void *arg) +{ + struct module *mod; + + mutex_lock(&module_mutex); + list_for_each_entry_rcu(mod, &modules, list) + op(mod, arg); + mutex_unlock(&module_mutex); +} + #ifdef CONFIG_SMP static inline void __percpu *mod_percpu(struct module *mod) -- 1.7.1