diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2025-03-14 13:36:15 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-03-21 22:03:12 -0700 |
| commit | 0d2a2605237341f9dfde99cd0ed3c2d003322464 (patch) | |
| tree | b8b3cea2d291b449e1c0d2451a7948f01bd5b7ea /mm | |
| parent | 8492936abb49eda26e00eab01e58d7e69f2355ba (diff) | |
mm: remove references to folio in __memcg_kmem_uncharge_page()
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.
Link: https://lkml.kernel.org/r/20250314133617.138071-6-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Cc: David Hildenbrand <david@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memcontrol.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index d95b1f4216ac..57cf5a6c279c 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2726,16 +2726,14 @@ 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); } |