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Use task_pgrp() task_session() in copy_process()

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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>
This commit is contained in:
Sukadev Bhattiprolu 2007-05-10 22:23:04 -07:00 committed by Linus Torvalds
parent 85868995d9
commit 0800d30832
1 changed files with 3 additions and 6 deletions
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9
kernel/fork.c
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@ -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)++;