net: rtnetlink: validate IFLA_MTU attribute in rtnl_create_link()

[mirror_ubuntu-bionic-kernel.git] / include / linux / cgroup-defs.h

diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 8b7fd8eeccee26c5694530a45f8f9332aaf681c7..db5c405155b5379993856f2542e56b91ebc2311d 100644 (file)
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -202,6 +202,7 @@ struct css_set {
         */
        struct list_head tasks;
        struct list_head mg_tasks;
+       struct list_head dying_tasks;
 
        /* all css_task_iters currently walking this cset */
        struct list_head task_iters;
@@ -339,6 +340,11 @@ struct cgroup {
         * Dying cgroups are cgroups which were deleted by a user,
         * but are still existing because someone else is holding a reference.
         * max_descendants is a maximum allowed number of descent cgroups.
+        *
+        * nr_descendants and nr_dying_descendants are protected
+        * by cgroup_mutex and css_set_lock. It's fine to read them holding
+        * any of cgroup_mutex and css_set_lock; for writing both locks
+        * should be held.
         */
        int nr_descendants;
        int nr_dying_descendants;
@@ -405,6 +411,7 @@ struct cgroup {
         * specific task are charged to the dom_cgrp.
         */
        struct cgroup *dom_cgrp;
+       struct cgroup *old_dom_cgrp;            /* used while enabling threaded */
 
        /* cgroup basic resource statistics */
        struct cgroup_cpu_stat __percpu *cpu_stat;
@@ -581,7 +588,7 @@ struct cgroup_subsys {
        void (*cancel_fork)(struct task_struct *task);
        void (*fork)(struct task_struct *task);
        void (*exit)(struct task_struct *task);
-       void (*free)(struct task_struct *task);
+       void (*release)(struct task_struct *task);
        void (*bind)(struct cgroup_subsys_state *root_css);
 
        bool early_init:1;
@@ -755,13 +762,13 @@ struct sock_cgroup_data {
  * updaters and return part of the previous pointer as the prioidx or
  * classid.  Such races are short-lived and the result isn't critical.
  */
-static inline u16 sock_cgroup_prioidx(struct sock_cgroup_data *skcd)
+static inline u16 sock_cgroup_prioidx(const struct sock_cgroup_data *skcd)
 {
        /* fallback to 1 which is always the ID of the root cgroup */
        return (skcd->is_data & 1) ? skcd->prioidx : 1;
 }
 
-static inline u32 sock_cgroup_classid(struct sock_cgroup_data *skcd)
+static inline u32 sock_cgroup_classid(const struct sock_cgroup_data *skcd)
 {
        /* fallback to 0 which is the unconfigured default classid */
        return (skcd->is_data & 1) ? skcd->classid : 0;