{
struct dev_exception_item *ex, *tmp, *new;
+ lockdep_assert_held(&devcgroup_mutex);
+
list_for_each_entry(ex, orig, list) {
new = kmemdup(ex, sizeof(*ex), GFP_KERNEL);
if (!new)
{
struct dev_exception_item *excopy, *walk;
+ lockdep_assert_held(&devcgroup_mutex);
+
excopy = kmemdup(ex, sizeof(*ex), GFP_KERNEL);
if (!excopy)
return -ENOMEM;
{
struct dev_exception_item *walk, *tmp;
+ lockdep_assert_held(&devcgroup_mutex);
+
list_for_each_entry_safe(walk, tmp, &dev_cgroup->exceptions, list) {
if (walk->type != ex->type)
continue;
{
struct dev_exception_item *ex, *tmp;
+ lockdep_assert_held(&devcgroup_mutex);
+
list_for_each_entry_safe(ex, tmp, &dev_cgroup->exceptions, list) {
list_del_rcu(&ex->list);
kfree_rcu(ex, rcu);
/*
* called from kernel/cgroup.c with cgroup_lock() held.
*/
-static struct cgroup_subsys_state *devcgroup_create(struct cgroup *cgroup)
+static struct cgroup_subsys_state *devcgroup_css_alloc(struct cgroup *cgroup)
{
struct dev_cgroup *dev_cgroup, *parent_dev_cgroup;
struct cgroup *parent_cgroup;
return &dev_cgroup->css;
}
-static void devcgroup_destroy(struct cgroup *cgroup)
+static void devcgroup_css_free(struct cgroup *cgroup)
{
struct dev_cgroup *dev_cgroup;
struct dev_exception_item *ex;
bool match = false;
+ rcu_lockdep_assert(rcu_read_lock_held() ||
+ lockdep_is_held(&devcgroup_mutex),
+ "device_cgroup::may_access() called without proper synchronization");
+
list_for_each_entry_rcu(ex, &dev_cgroup->exceptions, list) {
if ((refex->type & DEV_BLOCK) && !(ex->type & DEV_BLOCK))
continue;
struct cgroup_subsys devices_subsys = {
.name = "devices",
.can_attach = devcgroup_can_attach,
- .create = devcgroup_create,
- .destroy = devcgroup_destroy,
+ .css_alloc = devcgroup_css_alloc,
+ .css_free = devcgroup_css_free,
.subsys_id = devices_subsys_id,
.base_cftypes = dev_cgroup_files,