From: Sukadev Bhattiprolu <sukadev@us.ibm.com>
attach_pid() currently takes a pid_t parameter and uses find_pid() to find

the struct pid associated with the pid_t. With containers, we sometimes

already have the struct pid and could skip the find_pid() - if we have a

version of attach_pid() that takes a struct pid parameter.
This patch renames the attach_pid() to find_attach_pid(). My next patch

defines attach_pid() to take a struct pid.
Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>

Cc: Cedric Le Goater <clg@fr.ibm.com>

Cc: Dave Hansen <haveblue@us.ibm.com>

Cc: Serge Hallyn <serue@us.ibm.com>

Cc: containers@lists.osdl.org
---

 fs/exec.c           |    2 +-

 include/linux/pid.h |    4 ++--

 kernel/exit.c       |    4 ++--

 kernel/fork.c       |    6 +++---

 kernel/pid.c        |    3 ++-

 kernel/sys.c        |    2 +-

 6 files changed, 11 insertions(+), 10 deletions(-)
Index: lx26-20-rc2-mm1/fs/exec.c

===================================================================

--- lx26-20-rc2-mm1.orig/fs/exec.c	2007-01-10 14:16:17.000000000 -0800

+++ lx26-20-rc2-mm1/fs/exec.c	2007-01-10 21:42:43.000000000 -0800

@@ -701,7 +701,7 @@ static int de_thread(struct task_struct

 		 */

 		detach_pid(tsk, PIDTYPE_PID);

 		tsk->pid = leader->pid;

-		attach_pid(tsk, PIDTYPE_PID,  tsk->pid);

+		find_attach_pid(tsk, PIDTYPE_PID,  tsk->pid);

 		transfer_pid(leader, tsk, PIDTYPE_PGID);

 		transfer_pid(leader, tsk, PIDTYPE_SID);

 		list_replace_rcu(&leader->tasks, &tsk->tasks);

Index: lx26-20-rc2-mm1/include/linux/pid.h

===================================================================

--- lx26-20-rc2-mm1.orig/include/linux/pid.h	2007-01-10 14:16:18.000000000 -0800

+++ lx26-20-rc2-mm1/include/linux/pid.h	2007-01-11 04:44:06.674046656 -0800

@@ -72,10 +72,10 @@ extern struct task_struct *FASTCALL(get_

 extern struct pid *get_task_pid(struct task_struct *task, enum pid_type type);
 /*

- * attach_pid() and detach_pid() must...
[ message continues ]

Looks straightforward enough.
thanks,

-serge
-