Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 80f36c2a authored by Li Zefan's avatar Li Zefan Committed by Tejun Heo
Browse files

cgroup: remove useless code in cgroup_write_event_control() 



eventfd_poll() never returns POLLHUP.

Signed-off-by: default avatarLi Zefan <lizefan@huawei.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 6ee211ad

kernel/cgroup.c

+0 −6
Original line number Diff line number Diff line
@@ -3937,12 +3937,6 @@ static int cgroup_write_event_control(struct cgroup *cgrp, struct cftype *cft, 
	if (ret)

		goto fail;



	if (efile->f_op->poll(efile, &event->pt) & POLLHUP) {

		event->cft->unregister_event(cgrp, event->cft, event->eventfd);

		ret = 0;

		goto fail;

	}



	/*

	 * Events should be removed after rmdir of cgroup directory, but before

	 * destroying subsystem state objects. Let's take reference to cgroup