From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755092AbZIJGG7 (ORCPT ); Thu, 10 Sep 2009 02:06:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755049AbZIJGG7 (ORCPT ); Thu, 10 Sep 2009 02:06:59 -0400 Received: from e3.ny.us.ibm.com ([32.97.182.143]:41917 "EHLO e3.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752105AbZIJGG6 (ORCPT ); Thu, 10 Sep 2009 02:06:58 -0400 Date: Wed, 9 Sep 2009 23:11:43 -0700 From: Sukadev Bhattiprolu To: linux-kernel@vger.kernel.org Cc: Oren Laadan , "Eric W. Biederman" , Alexey Dobriyan , Pavel Emelyanov , Andrew Morton , torvalds@linux-foundation.org, mikew@google.com, mingo@elte.hu, hpa@zytor.com, Nathan Lynch , arnd@arndb.de, Containers , sukadev@us.ibm.com Subject: [RFC][v6][PATCH 6/9]: Add target_pids parameter to copy_process() Message-ID: <20090910061143.GE25883@us.ibm.com> References: <20090910060627.GA24343@us.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090910060627.GA24343@us.ibm.com> X-Operating-System: Linux 2.0.32 on an i486 User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Subject: [RFC][v6][PATCH 6/9]: Add target_pids parameter to copy_process() Add a 'target_pids' parameter to copy_process(). The new parameter will be used in a follow-on patch when clone_with_pids() is implemented. Signed-off-by: Sukadev Bhattiprolu Acked-by: Serge Hallyn Reviewed-by: Oren Laadan --- kernel/fork.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) Index: linux-2.6/kernel/fork.c =================================================================== --- linux-2.6.orig/kernel/fork.c 2009-09-09 19:07:36.000000000 -0700 +++ linux-2.6/kernel/fork.c 2009-09-09 19:07:40.000000000 -0700 @@ -935,12 +935,12 @@ static struct task_struct *copy_process( unsigned long stack_size, int __user *child_tidptr, struct pid *pid, + pid_t *target_pids, int trace) { int retval; struct task_struct *p; int cgroup_callbacks_done = 0; - pid_t *target_pids = NULL; if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS)) return ERR_PTR(-EINVAL); @@ -1319,7 +1319,7 @@ struct task_struct * __cpuinit fork_idle struct pt_regs regs; task = copy_process(CLONE_VM, 0, idle_regs(®s), 0, NULL, - &init_struct_pid, 0); + &init_struct_pid, NULL, 0); if (!IS_ERR(task)) init_idle(task, cpu); @@ -1342,6 +1342,7 @@ long do_fork(unsigned long clone_flags, struct task_struct *p; int trace = 0; long nr; + pid_t *target_pids = NULL; /* * Do some preliminary argument and permissions checking before we @@ -1382,7 +1383,7 @@ long do_fork(unsigned long clone_flags, trace = tracehook_prepare_clone(clone_flags); p = copy_process(clone_flags, stack_start, regs, stack_size, - child_tidptr, NULL, trace); + child_tidptr, NULL, target_pids, trace); /* * Do this prior waking up the new thread - the thread pointer * might get invalid after that point, if the thread exits quickly.