SLOB: fix bogus ksize calculation fix

[linux-2.6-omap-h63xx.git] / mm / slob.c

diff --git a/mm/slob.c b/mm/slob.c
index de268eb7ac705ccb86beb1db409c9b15d8891c69..cb675d1267914dc263100b9c4a9ea5eb20fefa48 100644 (file)
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -514,23 +514,23 @@ 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;
 
@@ -575,7 +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;
 }