This use of folios is misleading because these pages are not part of
a folio. Remove an unnecessary call to page_folio(), saving 58 bytes
of text in a Debian kernel build.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
mm/memcontrol.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 93102319409a..d12afda6d58c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2746,16 +2746,14 @@ int __memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order)
*/
void __memcg_kmem_uncharge_page(struct page *page, int order)
{
- struct folio *folio = page_folio(page);
- struct obj_cgroup *objcg;
+ struct obj_cgroup *objcg = page_objcg(page);
unsigned int nr_pages = 1 << order;
- if (!folio_memcg_kmem(folio))
+ if (!objcg)
return;
- objcg = __folio_objcg(folio);
obj_cgroup_uncharge_pages(objcg, nr_pages);
- folio->memcg_data = 0;
+ page->memcg_data = 0;
obj_cgroup_put(objcg);
}
--
2.47.2
