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authorSukadev Bhattiprolu <sukadev@us.ibm.com>2007-05-11 09:23:04 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-11 19:29:36 +0400
commit0800d30832ddecf2d9dc40068fed9df95930a8f1 (patch)
treefa4aa77d9cd95818b4ba32ced6bbb096c19b1bfb /kernel/fork.c
parent85868995d9d82de5b0de38d695559daddffef893 (diff)
downloadlinux-0800d30832ddecf2d9dc40068fed9df95930a8f1.tar.xz
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 <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> Acked-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index cf13c44f3da3..083bf8953ce8 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1249,14 +1249,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
__ptrace_link(p, current->parent);
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)++;