md: Fix check for overlapping devices.

[pandora-kernel.git] / include / linux / slub_def.h

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index b00c1c7..d117ea2 100644 (file)
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -4,7 +4,7 @@
 /*
  * SLUB : A Slab allocator without object queues.
  *
- * (C) 2007 SGI, Christoph Lameter <clameter@sgi.com>
+ * (C) 2007 SGI, Christoph Lameter
  */
 #include <linux/types.h>
 #include <linux/gfp.h>
@@ -29,6 +29,7 @@ enum stat_item {
        DEACTIVATE_TO_HEAD,     /* Cpu slab was moved to the head of partials */
        DEACTIVATE_TO_TAIL,     /* Cpu slab was moved to the tail of partials */
        DEACTIVATE_REMOTE_FREES,/* Slab contained remotely freed objects */
+       ORDER_FALLBACK,         /* Number of times fallback was necessary */
        NR_SLUB_STAT_ITEMS };
 
 struct kmem_cache_cpu {
@@ -45,13 +46,23 @@ struct kmem_cache_cpu {
 struct kmem_cache_node {
        spinlock_t list_lock;   /* Protect partial list and nr_partial */
        unsigned long nr_partial;
-       atomic_long_t nr_slabs;
        struct list_head partial;
 #ifdef CONFIG_SLUB_DEBUG
+       atomic_long_t nr_slabs;
+       atomic_long_t total_objects;
        struct list_head full;
 #endif
 };
 
+/*
+ * Word size structure that can be atomically updated or read and that
+ * contains both the order and the number of objects that a slab of the
+ * given order would contain.
+ */
+struct kmem_cache_order_objects {
+       unsigned long x;
+};
+
 /*
  * Slab cache management.
  */
@@ -61,7 +72,7 @@ struct kmem_cache {
        int size;               /* The size of an object including meta data */
        int objsize;            /* The size of an object without meta data */
        int offset;             /* Free pointer offset. */
-       int order;              /* Current preferred allocation order */
+       struct kmem_cache_order_objects oo;
 
        /*
         * Avoid an extra cache line for UP, SMP and for the node local to
@@ -70,7 +81,8 @@ struct kmem_cache {
        struct kmem_cache_node local_node;
 
        /* Allocation and freeing of slabs */
-       int objects;            /* Number of objects in slab */
+       struct kmem_cache_order_objects max;
+       struct kmem_cache_order_objects min;
        gfp_t allocflags;       /* gfp flags to use on each alloc */
        int refcount;           /* Refcount for slab cache destroy */
        void (*ctor)(struct kmem_cache *, void *);
@@ -125,10 +137,12 @@ static __always_inline int kmalloc_index(size_t size)
        if (size <= KMALLOC_MIN_SIZE)
                return KMALLOC_SHIFT_LOW;
 
+#if KMALLOC_MIN_SIZE <= 64
        if (size > 64 && size <= 96)
                return 1;
        if (size > 128 && size <= 192)
                return 2;
+#endif
        if (size <=          8) return 3;
        if (size <=         16) return 4;
        if (size <=         32) return 5;