[PATCH] mm/: make functions static

This patch makes the following needlessly global functions static:
 - slab.c: kmem_find_general_cachep()
 - swap.c: __page_cache_release()
 - vmalloc.c: __vmalloc_node()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Author: AdrianBunk

include/linux/mm.h

@@ -318,8 +318,6 @@ static inline int get_page_unless_zero(struct page *page)
 	return atomic_inc_not_zero(&page->_count);
 }
 
-extern void FASTCALL(__page_cache_release(struct page *));
-
 static inline int page_count(struct page *page)
 {
 	if (unlikely(PageCompound(page)))

include/linux/slab.h

@@ -67,7 +67,6 @@ extern void *kmem_cache_zalloc(struct kmem_cache *, gfp_t);
 extern void kmem_cache_free(kmem_cache_t *, void *);
 extern unsigned int kmem_cache_size(kmem_cache_t *);
 extern const char *kmem_cache_name(kmem_cache_t *);
-extern kmem_cache_t *kmem_find_general_cachep(size_t size, gfp_t gfpflags);
 
 /* Size description struct for general caches. */
 struct cache_sizes {
@@ -223,7 +222,6 @@ extern int FASTCALL(kmem_ptr_validate(kmem_cache_t *cachep, void *ptr));
 /* SLOB allocator routines */
 
 void kmem_cache_init(void);
-struct kmem_cache *kmem_find_general_cachep(size_t, gfp_t gfpflags);
 struct kmem_cache *kmem_cache_create(const char *c, size_t, size_t,
 	unsigned long,
 	void (*)(void *, struct kmem_cache *, unsigned long),

include/linux/vmalloc.h

@@ -44,8 +44,6 @@ extern void *vmalloc_32_user(unsigned long size);
 extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
 extern void *__vmalloc_area(struct vm_struct *area, gfp_t gfp_mask,
 				pgprot_t prot);
-extern void *__vmalloc_node(unsigned long size, gfp_t gfp_mask,
-				pgprot_t prot, int node);
 extern void vfree(void *addr);
 
 extern void *vmap(struct page **pages, unsigned int count,

mm/slab.c

@@ -768,11 +768,10 @@ static inline struct kmem_cache *__find_general_cachep(size_t size,
 	return csizep->cs_cachep;
 }
 
-struct kmem_cache *kmem_find_general_cachep(size_t size, gfp_t gfpflags)
+static struct kmem_cache *kmem_find_general_cachep(size_t size, gfp_t gfpflags)
 {
 	return __find_general_cachep(size, gfpflags);
 }
-EXPORT_SYMBOL(kmem_find_general_cachep);
 
 static size_t slab_mgmt_size(size_t nr_objs, size_t align)
 {

mm/swap.c

@@ -34,6 +34,25 @@
 /* How many pages do we try to swap or page in/out together? */
 int page_cluster;
 
+/*
+ * This path almost never happens for VM activity - pages are normally
+ * freed via pagevecs.  But it gets used by networking.
+ */
+static void fastcall __page_cache_release(struct page *page)
+{
+	if (PageLRU(page)) {
+		unsigned long flags;
+		struct zone *zone = page_zone(page);
+
+		spin_lock_irqsave(&zone->lru_lock, flags);
+		VM_BUG_ON(!PageLRU(page));
+		__ClearPageLRU(page);
+		del_page_from_lru(zone, page);
+		spin_unlock_irqrestore(&zone->lru_lock, flags);
+	}
+	free_hot_page(page);
+}
+
 static void put_compound_page(struct page *page)
 {
 	page = (struct page *)page_private(page);
@@ -222,26 +241,6 @@ int lru_add_drain_all(void)
 }
 #endif
 
-/*
- * This path almost never happens for VM activity - pages are normally
- * freed via pagevecs.  But it gets used by networking.
- */
-void fastcall __page_cache_release(struct page *page)
-{
-	if (PageLRU(page)) {
-		unsigned long flags;
-		struct zone *zone = page_zone(page);
-
-		spin_lock_irqsave(&zone->lru_lock, flags);
-		VM_BUG_ON(!PageLRU(page));
-		__ClearPageLRU(page);
-		del_page_from_lru(zone, page);
-		spin_unlock_irqrestore(&zone->lru_lock, flags);
-	}
-	free_hot_page(page);
-}
-EXPORT_SYMBOL(__page_cache_release);
-
 /*
  * Batched page_cache_release().  Decrement the reference count on all the
  * passed pages.  If it fell to zero then remove the page from the LRU and

mm/vmalloc.c

@@ -24,6 +24,9 @@
 DEFINE_RWLOCK(vmlist_lock);
 struct vm_struct *vmlist;
 
+static void *__vmalloc_node(unsigned long size, gfp_t gfp_mask, pgprot_t prot,
+			    int node);
+
 static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
 {
 	pte_t *pte;
@@ -478,8 +481,8 @@ void *__vmalloc_area(struct vm_struct *area, gfp_t gfp_mask, pgprot_t prot)
  *	allocator with @gfp_mask flags.  Map them into contiguous
  *	kernel virtual space, using a pagetable protection of @prot.
  */
-void *__vmalloc_node(unsigned long size, gfp_t gfp_mask, pgprot_t prot,
-			int node)
+static void *__vmalloc_node(unsigned long size, gfp_t gfp_mask, pgprot_t prot,
+			    int node)
 {
 	struct vm_struct *area;
 
@@ -493,7 +496,6 @@ void *__vmalloc_node(unsigned long size, gfp_t gfp_mask, pgprot_t prot,
 
 	return __vmalloc_area_node(area, gfp_mask, prot, node);
 }
-EXPORT_SYMBOL(__vmalloc_node);
 
 void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot)
 {