libceph: introduce and switch to reopen_session()

[linux-2.6-block.git] / mm / slab.h

diff --git a/mm/slab.h b/mm/slab.h
index b7934361f0263dd8fa95cebd73702468eadb1ad3..ff39a8fc3b3fcf53a9125c4da7ac1e184b84b116 100644 (file)
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -246,12 +246,33 @@ static __always_inline int memcg_charge_slab(struct page *page,
                                             gfp_t gfp, int order,
                                             struct kmem_cache *s)
 {
+       int ret;
+
        if (!memcg_kmem_enabled())
                return 0;
        if (is_root_cache(s))
                return 0;
-       return __memcg_kmem_charge_memcg(page, gfp, order,
-                                        s->memcg_params.memcg);
+
+       ret = __memcg_kmem_charge_memcg(page, gfp, order,
+                                       s->memcg_params.memcg);
+       if (ret)
+               return ret;
+
+       memcg_kmem_update_page_stat(page,
+                       (s->flags & SLAB_RECLAIM_ACCOUNT) ?
+                       MEMCG_SLAB_RECLAIMABLE : MEMCG_SLAB_UNRECLAIMABLE,
+                       1 << order);
+       return 0;
+}
+
+static __always_inline void memcg_uncharge_slab(struct page *page, int order,
+                                               struct kmem_cache *s)
+{
+       memcg_kmem_update_page_stat(page,
+                       (s->flags & SLAB_RECLAIM_ACCOUNT) ?
+                       MEMCG_SLAB_RECLAIMABLE : MEMCG_SLAB_UNRECLAIMABLE,
+                       -(1 << order));
+       memcg_kmem_uncharge(page, order);
 }
 
 extern void slab_init_memcg_params(struct kmem_cache *);
@@ -294,6 +315,11 @@ static inline int memcg_charge_slab(struct page *page, gfp_t gfp, int order,
        return 0;
 }
 
+static inline void memcg_uncharge_slab(struct page *page, int order,
+                                      struct kmem_cache *s)
+{
+}
+
 static inline void slab_init_memcg_params(struct kmem_cache *s)
 {
 }