From: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
Subject: [PATCH 5/5] Use task_pgrp() task_session() in copy_process().
Use task_pgrp() and task_session() in copy_process(), and
avoid find_pid() call when attaching the task to its process
group and session.
Signed-off-by: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
Cc: Cedric Le Goater <[EMAIL PROTECTED]>
Cc: Dave Hansen <[EMAIL PROTECTED]>
Cc: Serge Hallyn <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED]
Acked-by: Eric W. Biederman <[EMAIL PROTECTED]>
---
kernel/fork.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
Index: lx26-21-rc3-mm2/kernel/fork.c
===================================================================
--- lx26-21-rc3-mm2.orig/kernel/fork.c 2007-03-12 17:18:03.000000000 -0700
+++ lx26-21-rc3-mm2/kernel/fork.c 2007-03-12 17:18:11.000000000 -0700
@@ -1252,14 +1252,11 @@ static struct task_struct *copy_process(
tracehook_init_task(p);
if (thread_group_leader(p)) {
- pid_t pgid = process_group(current);
- pid_t sid = process_session(current);
-
p->signal->tty = current->signal->tty;
- p->signal->pgrp = pgid;
+ p->signal->pgrp = process_group(current);
set_signal_session(p->signal, process_session(current));
- attach_pid(p, PIDTYPE_PGID, find_pid(pgid));
- attach_pid(p, PIDTYPE_SID, find_pid(sid));
+ attach_pid(p, PIDTYPE_PGID, task_pgrp(current));
+ attach_pid(p, PIDTYPE_SID, task_session(current));
list_add_tail_rcu(&p->tasks, &init_task.tasks);
__get_cpu_var(process_counts)++;
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