[PATCH v3 12/17] slab: Remove folio references from kfree_rcu_sheaf()

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

In preparation for splitting struct slab from struct page and struct
folio, remove mentions of struct folio from this function.  Since
we don't need to handle large kmalloc objects specially here, we
can just use virt_to_slab().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 mm/slab_common.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/slab_common.c b/mm/slab_common.c
index 236b4e25fce0..b613533b29e7 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1615,17 +1615,15 @@ static void kfree_rcu_work(struct work_struct *work)
 static bool kfree_rcu_sheaf(void *obj)
 {
 	struct kmem_cache *s;
-	struct folio *folio;
 	struct slab *slab;
 
 	if (is_vmalloc_addr(obj))
 		return false;
 
-	folio = virt_to_folio(obj);
-	if (unlikely(!folio_test_slab(folio)))
+	slab = virt_to_slab(obj);
+	if (unlikely(!slab))
 		return false;
 
-	slab = folio_slab(folio);
 	s = slab->slab_cache;
 	if (s->cpu_sheaves) {
 		if (likely(!IS_ENABLED(CONFIG_NUMA) ||
-- 
2.47.2