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authorLi Zefan <lizefan@huawei.com>2013-03-12 15:36:00 -0700
committerTejun Heo <tj@kernel.org>2013-03-12 15:36:00 -0700
commit80f36c2a1a612ca419e5b864a7e4808e797d9feb (patch)
tree80ec8f4a04ffbfe7675201b1292edbe96a93ea60 /kernel/cgroup.c
parent6ee211ad0a22869af81eef10845922ac4dcb2d38 (diff)
cgroup: remove useless code in cgroup_write_event_control()
eventfd_poll() never returns POLLHUP. Signed-off-by: Li Zefan <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 29c77a714731..c7fe303b5109 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -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