Unverified Commit 1722c14a authored Oct 17, 2019 by Christian Brauner

exit: use pid_has_task() in do_wait()

Replace hlist_empty() with the new pid_has_task() helper which is more
idiomatic, easier to grep for, and unifies how callers perform this check.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20191017101832.5985-4-christian.brauner@ubuntu.com

parent 1d416a11

kernel/exit.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1457,7 +1457,7 @@ repeat:
		*/
		wo->notask_error = -ECHILD;
		if ((wo->wo_type < PIDTYPE_MAX) &&
		(!wo->wo_pid \|\| hlist_empty(&wo->wo_pid->tasks[wo->wo_type])))
		(!wo->wo_pid \|\| !pid_has_task(wo->wo_pid, wo->wo_type)))
		goto notask;

		set_current_state(TASK_INTERRUPTIBLE);