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Commit 3217ab97 authored by Vitaliy Gusev's avatar Vitaliy Gusev Committed by Rusty Russell
Browse files

kthread: Don't looking for a task in create_kthread() #2 



Remove the unnecessary find_task_by_pid_ns(). kthread() can just
use "current" to get the same result.

Signed-off-by: default avatarVitaliy Gusev <vgusev@openvz.org>
Acked-by: default avatarOleg Nesterov <oleg@redhat.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 7b85a88c

kernel/kthread.c

+1 −3
Original line number Diff line number Diff line
@@ -76,6 +76,7 @@ static int kthread(void *_create) 


	/* OK, tell user we're spawned, wait for stop or wakeup */

	__set_current_state(TASK_UNINTERRUPTIBLE);

	create->result = current;

	complete(&create->started);

	schedule();
@@ -101,9 +102,6 @@ static void create_kthread(struct kthread_create_info *create) 
	} else {

		struct sched_param param = { .sched_priority = 0 };

		wait_for_completion(&create->started);

		read_lock(&tasklist_lock);

		create->result = find_task_by_pid_ns(pid, &init_pid_ns);

		read_unlock(&tasklist_lock);

		/*

		 * root may have changed our (kthreadd's) priority or CPU mask.

		 * The kernel thread should not inherit these properties.