X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=mm%2Fslob.c;h=773a7aa80ab5ce53883cd7ad4d07a6019a175fe0;hb=62ca8792560e5bd7dc09f54ed3523a7864f416c7;hp=ec33fcdc852e2c72ecc95194ada98bf702d3a14a;hpb=532df780a2012ad75b3f078647f229c4dabd99d1;p=linux-2.6-omap-h63xx.git

diff --git a/mm/slob.c b/mm/slob.c
index ec33fcdc852..773a7aa80ab 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -321,7 +321,8 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
 		/* Improve fragment distribution and reduce our average
 		 * search time by starting our next search here. (see
 		 * Knuth vol 1, sec 2.5, pg 449) */
-		if (free_slob_pages.next != prev->next)
+		if (prev != free_slob_pages.prev &&
+				free_slob_pages.next != prev->next)
 			list_move_tail(&free_slob_pages, prev->next);
 		break;
 	}
@@ -329,7 +330,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
 
 	/* Not enough space: must allocate a new page */
 	if (!b) {
-		b = slob_new_page(gfp, 0, node);
+		b = slob_new_page(gfp & ~__GFP_ZERO, 0, node);
 		if (!b)
 			return 0;
 		sp = (struct slob_page *)virt_to_page(b);
@@ -360,7 +361,7 @@ static void slob_free(void *block, int size)
 	slobidx_t units;
 	unsigned long flags;
 
-	if (ZERO_OR_NULL_PTR(block))
+	if (unlikely(ZERO_OR_NULL_PTR(block)))
 		return;
 	BUG_ON(!size);
 
@@ -466,7 +467,7 @@ void kfree(const void *block)
 {
 	struct slob_page *sp;
 
-	if (ZERO_OR_NULL_PTR(block))
+	if (unlikely(ZERO_OR_NULL_PTR(block)))
 		return;
 
 	sp = (struct slob_page *)virt_to_page(block);
@@ -484,7 +485,8 @@ size_t ksize(const void *block)
 {
 	struct slob_page *sp;
 
-	if (ZERO_OR_NULL_PTR(block))
+	BUG_ON(!block);
+	if (unlikely(block == ZERO_SIZE_PTR))
 		return 0;
 
 	sp = (struct slob_page *)virt_to_page(block);
@@ -493,17 +495,18 @@ size_t ksize(const void *block)
 	else
 		return sp->page.private;
 }
+EXPORT_SYMBOL(ksize);
 
 struct kmem_cache {
 	unsigned int size, align;
 	unsigned long flags;
 	const char *name;
-	void (*ctor)(void *, struct kmem_cache *, unsigned long);
+	void (*ctor)(struct kmem_cache *, void *);
 };
 
 struct kmem_cache *kmem_cache_create(const char *name, size_t size,
 	size_t align, unsigned long flags,
-	void (*ctor)(void*, struct kmem_cache *, unsigned long))
+	void (*ctor)(struct kmem_cache *, void *))
 {
 	struct kmem_cache *c;
 
@@ -547,7 +550,7 @@ 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(b, c, 0);
+		c->ctor(c, b);
 
 	return b;
 }