slub: Store max number of objects in the page struct.

[linux-2.6-omap-h63xx.git] / include / linux / mm_types.h

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 877667918452f8c752714c6f6d5905b8352eae30..e0bd2235296b549e15102833cca8196caf4d0990 100644 (file)
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -1,7 +1,7 @@
 #ifndef _LINUX_MM_TYPES_H
 #define _LINUX_MM_TYPES_H
 
-#include <linux/auxvec.h>      /* For AT_VECTOR_SIZE */
+#include <linux/auxvec.h>
 #include <linux/types.h>
 #include <linux/threads.h>
 #include <linux/list.h>
@@ -13,6 +13,11 @@
 #include <asm/page.h>
 #include <asm/mmu.h>
 
+#ifndef AT_VECTOR_SIZE_ARCH
+#define AT_VECTOR_SIZE_ARCH 0
+#endif
+#define AT_VECTOR_SIZE (2*(AT_VECTOR_SIZE_ARCH + AT_VECTOR_SIZE_BASE + 1))
+
 struct address_space;
 
 #if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS
@@ -37,7 +42,10 @@ struct page {
                                         * to show when page is mapped
                                         * & limit reverse map searches.
                                         */
-               unsigned int inuse;     /* SLUB: Nr of objects */
+               struct {                /* SLUB */
+                       u16 inuse;
+                       u16 objects;
+               };
        };
        union {
            struct {
@@ -83,6 +91,9 @@ struct page {
        void *virtual;                  /* Kernel virtual address (NULL if
                                           not kmapped, ie. highmem) */
 #endif /* WANT_PAGE_VIRTUAL */
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
+       unsigned long page_cgroup;
+#endif
 };
 
 /*
@@ -214,6 +225,9 @@ struct mm_struct {
        /* aio bits */
        rwlock_t                ioctx_list_lock;
        struct kioctx           *ioctx_list;
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
+       struct mem_cgroup *mem_cgroup;
+#endif
 };
 
 #endif /* _LINUX_MM_TYPES_H */