[XFS] use scalable vmap API

[safe/jmp/linux-2.6] / mm / slob.c

diff --git a/mm/slob.c b/mm/slob.c
index 6038cba..bf7e8fc 100644 (file)
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -130,17 +130,17 @@ static LIST_HEAD(free_slob_large);
  */
 static inline int slob_page(struct slob_page *sp)
 {
-       return test_bit(PG_active, &sp->flags);
+       return PageSlobPage((struct page *)sp);
 }
 
 static inline void set_slob_page(struct slob_page *sp)
 {
-       __set_bit(PG_active, &sp->flags);
+       __SetPageSlobPage((struct page *)sp);
 }
 
 static inline void clear_slob_page(struct slob_page *sp)
 {
-       __clear_bit(PG_active, &sp->flags);
+       __ClearPageSlobPage((struct page *)sp);
 }
 
 /*
@@ -148,19 +148,19 @@ static inline void clear_slob_page(struct slob_page *sp)
  */
 static inline int slob_page_free(struct slob_page *sp)
 {
-       return test_bit(PG_private, &sp->flags);
+       return PageSlobFree((struct page *)sp);
 }
 
 static void set_slob_page_free(struct slob_page *sp, struct list_head *list)
 {
        list_add(&sp->list, list);
-       __set_bit(PG_private, &sp->flags);
+       __SetPageSlobFree((struct page *)sp);
 }
 
 static inline void clear_slob_page_free(struct slob_page *sp)
 {
        list_del(&sp->list);
-       __clear_bit(PG_private, &sp->flags);
+       __ClearPageSlobFree((struct page *)sp);
 }
 
 #define SLOB_UNIT sizeof(slob_t)
@@ -469,8 +469,9 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node)
                        return ZERO_SIZE_PTR;
 
                m = slob_alloc(size + align, gfp, align, node);
-               if (m)
-                       *m = size;
+               if (!m)
+                       return NULL;
+               *m = size;
                return (void *)m + align;
        } else {
                void *ret;
@@ -513,28 +514,28 @@ size_t ksize(const void *block)
                return 0;
 
        sp = (struct slob_page *)virt_to_page(block);
-       if (slob_page(sp))
-               return ((slob_t *)block - 1)->units + SLOB_UNIT;
-       else
+       if (slob_page(sp)) {
+               int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
+               unsigned int *m = (unsigned int *)(block - align);
+               return SLOB_UNITS(*m) * SLOB_UNIT;
+       } else
                return sp->page.private;
 }
-EXPORT_SYMBOL(ksize);
 
 struct kmem_cache {
        unsigned int size, align;
        unsigned long flags;
        const char *name;
-       void (*ctor)(struct kmem_cache *, void *);
+       void (*ctor)(void *);
 };
 
 struct kmem_cache *kmem_cache_create(const char *name, size_t size,
-       size_t align, unsigned long flags,
-       void (*ctor)(struct kmem_cache *, void *))
+       size_t align, unsigned long flags, void (*ctor)(void *))
 {
        struct kmem_cache *c;
 
        c = slob_alloc(sizeof(struct kmem_cache),
-               flags, ARCH_KMALLOC_MINALIGN, -1);
+               GFP_KERNEL, ARCH_KMALLOC_MINALIGN, -1);
 
        if (c) {
                c->name = name;
@@ -574,7 +575,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
                b = slob_new_page(flags, get_order(c->size), node);
 
        if (c->ctor)
-               c->ctor(c, b);
+               c->ctor(b);
 
        return b;
 }