memcg: only account kmem allocations marked as __GFP_ACCOUNT

[linux-2.6-block.git] / include / linux / gfp.h

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 075b014448f567e8eb3f4013e20b1d295ad2b843..1dd59abe541d27a0d92f5fe6e5f492521f52e633 100644 (file)
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -30,6 +30,7 @@ struct vm_area_struct;
 #define ___GFP_HARDWALL                0x20000u
 #define ___GFP_THISNODE                0x40000u
 #define ___GFP_ATOMIC          0x80000u
+#define ___GFP_ACCOUNT         0x100000u
 #define ___GFP_NOTRACK         0x200000u
 #define ___GFP_DIRECT_RECLAIM  0x400000u
 #define ___GFP_OTHER_NODE      0x800000u
@@ -72,11 +73,15 @@ struct vm_area_struct;
  *
  * __GFP_THISNODE forces the allocation to be satisified from the requested
  *   node with no fallbacks or placement policy enforcements.
+ *
+ * __GFP_ACCOUNT causes the allocation to be accounted to kmemcg (only relevant
+ *   to kmem allocations).
  */
 #define __GFP_RECLAIMABLE ((__force gfp_t)___GFP_RECLAIMABLE)
 #define __GFP_WRITE    ((__force gfp_t)___GFP_WRITE)
 #define __GFP_HARDWALL   ((__force gfp_t)___GFP_HARDWALL)
 #define __GFP_THISNODE ((__force gfp_t)___GFP_THISNODE)
+#define __GFP_ACCOUNT  ((__force gfp_t)___GFP_ACCOUNT)
 
 /*
  * Watermark modifiers -- controls access to emergency reserves
@@ -195,6 +200,9 @@ struct vm_area_struct;
  * GFP_KERNEL is typical for kernel-internal allocations. The caller requires
  *   ZONE_NORMAL or a lower zone for direct access but can direct reclaim.
  *
+ * GFP_KERNEL_ACCOUNT is the same as GFP_KERNEL, except the allocation is
+ *   accounted to kmemcg.
+ *
  * GFP_NOWAIT is for kernel allocations that should not stall for direct
  *   reclaim, start physical IO or use any filesystem callback.
  *
@@ -234,6 +242,7 @@ struct vm_area_struct;
  */
 #define GFP_ATOMIC     (__GFP_HIGH|__GFP_ATOMIC|__GFP_KSWAPD_RECLAIM)
 #define GFP_KERNEL     (__GFP_RECLAIM | __GFP_IO | __GFP_FS)
+#define GFP_KERNEL_ACCOUNT (GFP_KERNEL | __GFP_ACCOUNT)
 #define GFP_NOWAIT     (__GFP_KSWAPD_RECLAIM)
 #define GFP_NOIO       (__GFP_RECLAIM)
 #define GFP_NOFS       (__GFP_RECLAIM | __GFP_IO)