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Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 8c57301d0561..a71f2e0f9711 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -159,9 +159,9 @@ struct css_id {
*/
struct cgroup_event {
/*
- * Cgroup which the event belongs to.
+ * css which the event belongs to.
*/
- struct cgroup *cgrp;
+ struct cgroup_subsys_state *css;
/*
* Control file which the event associated.
*/
@@ -3955,11 +3955,12 @@ static void cgroup_event_remove(struct work_struct *work)
{
struct cgroup_event *event = container_of(work, struct cgroup_event,
remove);
- struct cgroup *cgrp = event->cgrp;
+ struct cgroup_subsys_state *css = event->css;
+ struct cgroup *cgrp = css->cgroup;
remove_wait_queue(event->wqh, &event->wait);
- event->cft->unregister_event(cgrp, event->cft, event->eventfd);
+ event->cft->unregister_event(css, event->cft, event->eventfd);
/* Notify userspace the event is going away. */
eventfd_signal(event->eventfd, 1);
@@ -3979,7 +3980,7 @@ static int cgroup_event_wake(wait_queue_t *wait, unsigned mode,
{
struct cgroup_event *event = container_of(wait,
struct cgroup_event, wait);
- struct cgroup *cgrp = event->cgrp;
+ struct cgroup *cgrp = event->css->cgroup;
unsigned long flags = (unsigned long)key;
if (flags & POLLHUP) {
@@ -4048,7 +4049,7 @@ static int cgroup_write_event_control(struct cgroup_subsys_state *css,
event = kzalloc(sizeof(*event), GFP_KERNEL);
if (!event)
return -ENOMEM;
- event->cgrp = cgrp;
+ event->css = css;
INIT_LIST_HEAD(&event->list);
init_poll_funcptr(&event->pt, cgroup_event_ptable_queue_proc);
init_waitqueue_func_entry(&event->wait, cgroup_event_wake);
@@ -4099,7 +4100,7 @@ static int cgroup_write_event_control(struct cgroup_subsys_state *css,
goto out_put_cfile;
}
- ret = event->cft->register_event(cgrp, event->cft,
+ ret = event->cft->register_event(css, event->cft,
event->eventfd, buffer);
if (ret)
goto out_put_cfile;