[PATCH v4 06/16] slab: Remove folio references from free_large_kmalloc()

["Matthew Wilcox (Oracle)" <willy@infradead.org>]

There's no need to use folio APIs here; just use a page directly.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
---
 mm/slub.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index 90c5663f2b71..05cb7ec48f09 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -6791,12 +6791,12 @@ void kmem_cache_free(struct kmem_cache *s, void *x)
 }
 EXPORT_SYMBOL(kmem_cache_free);
 
-static void free_large_kmalloc(struct folio *folio, void *object)
+static void free_large_kmalloc(struct page *page, void *object)
 {
-	unsigned int order = folio_order(folio);
+	unsigned int order = compound_order(page);
 
-	if (WARN_ON_ONCE(!folio_test_large_kmalloc(folio))) {
-		dump_page(&folio->page, "Not a kmalloc allocation");
+	if (WARN_ON_ONCE(!PageLargeKmalloc(page))) {
+		dump_page(page, "Not a kmalloc allocation");
 		return;
 	}
 
@@ -6807,10 +6807,10 @@ static void free_large_kmalloc(struct folio *folio, void *object)
 	kasan_kfree_large(object);
 	kmsan_kfree_large(object);
 
-	lruvec_stat_mod_folio(folio, NR_SLAB_UNRECLAIMABLE_B,
+	mod_lruvec_page_state(page, NR_SLAB_UNRECLAIMABLE_B,
 			      -(PAGE_SIZE << order));
-	__folio_clear_large_kmalloc(folio);
-	free_frozen_pages(&folio->page, order);
+	__ClearPageLargeKmalloc(page);
+	free_frozen_pages(page, order);
 }
 
 /*
@@ -6838,7 +6838,7 @@ void kvfree_rcu_cb(struct rcu_head *head)
 		 * consider folio order
 		 */
 		obj = (void *) PAGE_ALIGN_DOWN((unsigned long)obj);
-		free_large_kmalloc(folio, obj);
+		free_large_kmalloc(&folio->page, obj);
 		return;
 	}
 
@@ -6878,7 +6878,7 @@ void kfree(const void *object)
 
 	folio = virt_to_folio(object);
 	if (unlikely(!folio_test_slab(folio))) {
-		free_large_kmalloc(folio, (void *)object);
+		free_large_kmalloc(&folio->page, (void *)object);
 		return;
 	}
 
@@ -7305,7 +7305,7 @@ int build_detached_freelist(struct kmem_cache *s, size_t size,
 	if (!s) {
 		/* Handle kalloc'ed objects */
 		if (unlikely(!folio_test_slab(folio))) {
-			free_large_kmalloc(folio, object);
+			free_large_kmalloc(&folio->page, object);
 			df->slab = NULL;
 			return size;
 		}
-- 
2.47.2