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From: Sukadev Bhattiprolu <sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
To: Oren Laadan <orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
Cc: Containers
	<containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
	"David C. Hansen"
	<haveblue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH 5/7] [PATCH] Add target_pids parameter to copy_process()
Date: Wed, 27 May 2009 08:44:22 -0700	[thread overview]
Message-ID: <20090527154422.GE3107@us.ibm.com> (raw)
In-Reply-To: <20090527154212.GA3107-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>


From: Sukadev Bhattiprolu <sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Date: Mon, 4 May 2009 01:17:43 -0700
Subject: [PATCH 5/7] [PATCH] Add 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-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
---
 kernel/fork.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index d2d69d3..373411e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -949,12 +949,12 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 					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);
@@ -1327,7 +1327,7 @@ struct task_struct * __cpuinit fork_idle(int cpu)
 	struct pt_regs regs;
 
 	task = copy_process(CLONE_VM, 0, idle_regs(&regs), 0, NULL,
-			    &init_struct_pid, 0);
+			    &init_struct_pid, NULL, 0);
 	if (!IS_ERR(task))
 		init_idle(task, cpu);
 
@@ -1350,6 +1350,7 @@ 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
@@ -1390,7 +1391,7 @@ 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.
-- 
1.5.2.5

  parent reply	other threads:[~2009-05-27 15:44 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-27 15:42 [PATCH 1/7] [PATCH] Factor out code to allocate pidmap page Sukadev Bhattiprolu
     [not found] ` <20090527154212.GA3107-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-05-27 15:42   ` [PATCH 2/7] [PATCH] Have alloc_pidmap() return actual error code Sukadev Bhattiprolu
     [not found]     ` <20090527154259.GB3107-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-05-27 17:27       ` Dave Hansen
2009-05-27 17:43       ` Serge E. Hallyn
2009-05-27 19:37       ` Oren Laadan
2009-05-27 15:43   ` [PATCH 3/7] [PATCH] Add target_pid parameter to alloc_pidmap() Sukadev Bhattiprolu
     [not found]     ` <20090527154333.GC3107-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-05-27 17:56       ` Serge E. Hallyn
2009-05-27 15:43   ` [PATCH 4/7] [PATCH] Add target_pids parameter to alloc_pid() Sukadev Bhattiprolu
     [not found]     ` <20090527154355.GD3107-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-05-27 18:05       ` Serge E. Hallyn
2009-05-27 15:44   ` Sukadev Bhattiprolu [this message]
     [not found]     ` <20090527154422.GE3107-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-05-27 18:05       ` [PATCH 5/7] [PATCH] Add target_pids parameter to copy_process() Serge E. Hallyn
2009-05-27 19:41       ` Oren Laadan
2009-05-27 15:44   ` [PATCH 6/7] [PATCH] Define do_fork_with_pids() Sukadev Bhattiprolu
     [not found]     ` <20090527154443.GF3107-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-05-27 18:05       ` Serge E. Hallyn
2009-05-27 19:40       ` Oren Laadan
2009-05-27 15:45   ` [PATCH 7/7] [PATCH] Define clone_with_pids syscall Sukadev Bhattiprolu
     [not found]     ` <20090527154507.GG3107-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-05-27 18:19       ` Serge E. Hallyn
2009-05-27 19:53       ` Oren Laadan
     [not found]         ` <4A1D9A47.6030201-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-05-28  2:58           ` Sukadev Bhattiprolu
2009-05-27 17:26   ` [PATCH 1/7] [PATCH] Factor out code to allocate pidmap page Dave Hansen
2009-05-27 17:48   ` Serge E. Hallyn
2009-05-27 19:31   ` Oren Laadan

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