[PATCH 2/2] cgroup: list_del_init() on removed events
From: Greg Thelen <hidden>
Date: 2012-11-28 21:50:52
Also in:
lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Use list_del_init() rather than list_del() to remove events from cgrp->event_list. No functional change. This is just defensive coding. Signed-off-by: Greg Thelen <redacted> --- kernel/cgroup.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a0d75bb..44c319d 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c@@ -3766,7 +3766,7 @@ static int cgroup_event_wake(wait_queue_t *wait, unsigned mode, if (flags & POLLHUP) { __remove_wait_queue(event->wqh, &event->wait); spin_lock(&cgrp->event_list_lock); - list_del(&event->list); + list_del_init(&event->list); spin_unlock(&cgrp->event_list_lock); /* * We are in atomic context, but cgroup_event_remove() may
@@ -4340,7 +4340,7 @@ static int cgroup_destroy_locked(struct cgroup *cgrp) list_splice_init(&cgrp->event_list, &tmp_list); spin_unlock(&cgrp->event_list_lock); list_for_each_entry_safe(event, tmp, &tmp_list, list) { - list_del(&event->list); + list_del_init(&event->list); remove_wait_queue(event->wqh, &event->wait); eventfd_signal(event->eventfd, 1); schedule_work(&event->remove);
--
1.7.7.3