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Message-ID: <20090907211553.GF6685@us.ibm.com>
Date: Mon, 7 Sep 2009 14:15:54 -0700
From: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To: linux-kernel@...r.kernel.org
Cc: serue@...ibm.com, Oren Laadan <orenl@...columbia.edu>,
"Eric W. Biederman" <ebiederm@...ssion.com>,
Alexey Dobriyan <adobriyan@...il.com>,
Pavel Emelyanov <xemul@...nvz.org>,
Andrew Morton <akpm@...l.org>, torvalds@...ux-foundation.org,
mikew@...gle.com, mingo@...e.hu, hpa@...or.com,
Containers <containers@...ts.linux-foundation.org>,
sukadev@...ibm.com
Subject: [RFC][v5][PATCH 6/8]: Add target_pids parameter to copy_process()
Subject: [RFC][v5][PATCH 6/8]: 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 <sukadev@...ux.vnet.ibm.com>
Acked-by: Serge Hallyn <serue@...ibm.com>
Reviewed-by: Oren Laadan <orenl@...columbia.edu>
---
kernel/fork.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
Index: linux-mmotm/kernel/fork.c
===================================================================
--- linux-mmotm.orig/kernel/fork.c 2009-09-05 21:19:16.000000000 -0700
+++ linux-mmotm/kernel/fork.c 2009-09-05 21:19:58.000000000 -0700
@@ -978,12 +978,12 @@
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);
@@ -1365,7 +1365,7 @@
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);
@@ -1388,6 +1388,7 @@
struct task_struct *p;
int trace = 0;
long nr;
+ pid_t *target_pids = NULL;
/*
* Do some preliminary argument and permissions checking before we
@@ -1428,7 +1429,7 @@
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.
--
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