[Devel] [PATCH v21 005/100] eclone (5/11): Add target_pids parameter to copy_process()

[Oren Laadan]

From: Sukadev Bhattiprolu <sukadev at linux.vnet.ibm.com>

Add a 'target_pids' parameter to copy_process().  The new parameter will be
used in a follow-on patch when eclone() is implemented.

Cc: linux-api at vger.kernel.org
Cc: x86 at kernel.org
Cc: linux-s390 at vger.kernel.org
Cc: linuxppc-dev at ozlabs.org
Cc: Oleg Nesterov <oleg at redhat.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev at linux.vnet.ibm.com>
Acked-by: Serge E. Hallyn <serue at us.ibm.com>
Tested-by: Serge E. Hallyn <serue at us.ibm.com>
Reviewed-by: Oren Laadan <orenl at cs.columbia.edu>
---
 kernel/fork.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index 62018c8..9d2b57e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -957,12 +957,12 @@ 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);
@@ -1339,7 +1339,7 @@ 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);
 
@@ -1362,6 +1362,7 @@ 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
@@ -1402,7 +1403,7 @@ 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.
-- 
1.6.3.3

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