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-rw-r--r--kernel/include/linux/memcontrol.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/include/linux/memcontrol.h b/kernel/include/linux/memcontrol.h
index cd0e2413c..435fd8426 100644
--- a/kernel/include/linux/memcontrol.h
+++ b/kernel/include/linux/memcontrol.h
@@ -174,6 +174,11 @@ struct mem_cgroup_thresholds {
struct mem_cgroup_threshold_ary *spare;
};
+struct mem_cgroup_id {
+ int id;
+ atomic_t ref;
+};
+
/*
* The memory controller data structure. The memory controller controls both
* page cache and RSS per cgroup. We would eventually like to provide
@@ -183,6 +188,9 @@ struct mem_cgroup_thresholds {
struct mem_cgroup {
struct cgroup_subsys_state css;
+ /* Private memcg ID. Used to ID objects that outlive the cgroup */
+ struct mem_cgroup_id id;
+
/* Accounted resources */
struct page_counter memory;
struct page_counter memsw;