[PATCH 34/62] mm/slub: Remove struct page argument from setup_object()

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

Neither setup_object() nor setup_object_debug() used their struct page
argument, so delete it instead of converting to struct slab.

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 mm/slub.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index 14a423250611..16ce9aeccdc8 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1240,8 +1240,7 @@ static inline void dec_slabs_node(struct kmem_cache *s, int node, int objects)
 }
 
 /* Object debug checks for alloc/free paths */
-static void setup_object_debug(struct kmem_cache *s, struct page *page,
-								void *object)
+static void setup_object_debug(struct kmem_cache *s, void *object)
 {
 	if (!kmem_cache_debug_flags(s, SLAB_STORE_USER|SLAB_RED_ZONE|__OBJECT_POISON))
 		return;
@@ -1600,8 +1599,7 @@ slab_flags_t kmem_cache_flags(unsigned int object_size,
 	return flags | slub_debug_local;
 }
 #else /* !CONFIG_SLUB_DEBUG */
-static inline void setup_object_debug(struct kmem_cache *s,
-			struct page *page, void *object) {}
+static inline void setup_object_debug(struct kmem_cache *s, void *object) {}
 static inline
 void setup_page_debug(struct kmem_cache *s, struct page *page, void *addr) {}
 
@@ -1737,10 +1735,9 @@ static inline bool slab_free_freelist_hook(struct kmem_cache *s,
 	return *head != NULL;
 }
 
-static void *setup_object(struct kmem_cache *s, struct page *page,
-				void *object)
+static void *setup_object(struct kmem_cache *s, void *object)
 {
-	setup_object_debug(s, page, object);
+	setup_object_debug(s, object);
 	object = kasan_init_slab_obj(s, object);
 	if (unlikely(s->ctor)) {
 		kasan_unpoison_object_data(s, object);
@@ -1849,13 +1846,13 @@ static bool shuffle_freelist(struct kmem_cache *s, struct slab *slab)
 
 	/* First entry is used as the base of the freelist */
 	cur = next_freelist_entry(s, &pos, start, slab_limit, freelist_count);
-	cur = setup_object(s, slab_page(slab), cur);
+	cur = setup_object(s, cur);
 	slab->freelist = cur;
 
 	for (idx = 1; idx < slab->objects; idx++) {
 		next = next_freelist_entry(s, &pos, start, slab_limit,
 			freelist_count);
-		next = setup_object(s, slab_page(slab), next);
+		next = setup_object(s, next);
 		set_freepointer(s, cur, next);
 		cur = next;
 	}
@@ -1929,11 +1926,11 @@ static struct slab *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
 
 	if (!shuffle) {
 		start = fixup_red_left(s, start);
-		start = setup_object(s, slab_page(slab), start);
+		start = setup_object(s, start);
 		slab->freelist = start;
 		for (idx = 0, p = start; idx < slab->objects - 1; idx++) {
 			next = p + s->size;
-			next = setup_object(s, slab_page(slab), next);
+			next = setup_object(s, next);
 			set_freepointer(s, p, next);
 			p = next;
 		}
-- 
2.32.0