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-rw-r--r--include/linux/memcontrol.h2
-rw-r--r--include/linux/slab.h10
2 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 2298122e71ad..79fcf0cd7186 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -453,6 +453,8 @@ void memcg_update_array_size(int num_groups);
struct kmem_cache *
__memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp);
+void mem_cgroup_destroy_cache(struct kmem_cache *cachep);
+
/**
* memcg_kmem_newpage_charge: verify if a new kmem allocation is allowed.
* @gfp: the gfp allocation flags.
diff --git a/include/linux/slab.h b/include/linux/slab.h
index c0fcf28c15b2..869efb8d2377 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -11,6 +11,8 @@
#include <linux/gfp.h>
#include <linux/types.h>
+#include <linux/workqueue.h>
+
/*
* Flags to pass to kmem_cache_create().
@@ -179,7 +181,6 @@ void kmem_cache_free(struct kmem_cache *, void *);
#ifndef ARCH_SLAB_MINALIGN
#define ARCH_SLAB_MINALIGN __alignof__(unsigned long long)
#endif
-
/*
* This is the main placeholder for memcg-related information in kmem caches.
* struct kmem_cache will hold a pointer to it, so the memory cost while
@@ -197,6 +198,10 @@ void kmem_cache_free(struct kmem_cache *, void *);
* @memcg: pointer to the memcg this cache belongs to
* @list: list_head for the list of all caches in this memcg
* @root_cache: pointer to the global, root cache, this cache was derived from
+ * @dead: set to true after the memcg dies; the cache may still be around.
+ * @nr_pages: number of pages that belongs to this cache.
+ * @destroy: worker to be called whenever we are ready, or believe we may be
+ * ready, to destroy this cache.
*/
struct memcg_cache_params {
bool is_root_cache;
@@ -206,6 +211,9 @@ struct memcg_cache_params {
struct mem_cgroup *memcg;
struct list_head list;
struct kmem_cache *root_cache;
+ bool dead;
+ atomic_t nr_pages;
+ struct work_struct destroy;
};
};
};