[PATCH 29/62] mm/slub: Convert acquire_slab() to take a struct page

["Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>]

Improves type safety.

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 mm/slub.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index 5330d0b02f13..3468f2b2fe3a 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2044,12 +2044,12 @@ static inline void remove_partial(struct kmem_cache_node *n,
  * Returns a list of objects or NULL if it fails.
  */
 static inline void *acquire_slab(struct kmem_cache *s,
-		struct kmem_cache_node *n, struct page *page,
+		struct kmem_cache_node *n, struct slab *slab,
 		int mode, int *objects)
 {
 	void *freelist;
 	unsigned long counters;
-	struct page new;
+	struct slab new;
 
 	lockdep_assert_held(&n->list_lock);
 
@@ -2058,12 +2058,12 @@ static inline void *acquire_slab(struct kmem_cache *s,
 	 * The old freelist is the list of objects for the
 	 * per cpu allocation list.
 	 */
-	freelist = page->freelist;
-	counters = page->counters;
+	freelist = slab->freelist;
+	counters = slab->counters;
 	new.counters = counters;
 	*objects = new.objects - new.inuse;
 	if (mode) {
-		new.inuse = page->objects;
+		new.inuse = slab->objects;
 		new.freelist = NULL;
 	} else {
 		new.freelist = freelist;
@@ -2072,13 +2072,13 @@ static inline void *acquire_slab(struct kmem_cache *s,
 	VM_BUG_ON(new.frozen);
 	new.frozen = 1;
 
-	if (!__cmpxchg_double_slab(s, page,
+	if (!__cmpxchg_double_slab(s, slab_page(slab),
 			freelist, counters,
 			new.freelist, new.counters,
 			"acquire_slab"))
 		return NULL;
 
-	remove_partial(n, page);
+	remove_partial(n, slab_page(slab));
 	WARN_ON(!freelist);
 	return freelist;
 }
@@ -2119,7 +2119,7 @@ static void *get_partial_node(struct kmem_cache *s, struct kmem_cache_node *n,
 		if (!pfmemalloc_match(slab_page(slab), gfpflags))
 			continue;
 
-		t = acquire_slab(s, n, slab_page(slab), object == NULL, &objects);
+		t = acquire_slab(s, n, slab, object == NULL, &objects);
 		if (!t)
 			break;
 
-- 
2.32.0