From 025f5b870b2c4f30cbf452c5b07f9ab249cf73ec Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Thu, 13 Nov 2025 00:09:26 +0000 Subject: [PATCH] slab: Remove folio references from kfree_nolock() In preparation for splitting struct slab from struct page and struct folio, remove mentions of struct folio from this function. Since large kmalloc objects are not supported here, we can just use virt_to_slab(). Signed-off-by: Matthew Wilcox (Oracle) Link: https://patch.msgid.link/20251113000932.1589073-13-willy@infradead.org Reviewed-by: Harry Yoo Signed-off-by: Vlastimil Babka --- mm/slub.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 3ada9421c65dd..8e5da7b6efe49 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -6850,7 +6850,6 @@ EXPORT_SYMBOL(kfree); */ void kfree_nolock(const void *object) { - struct folio *folio; struct slab *slab; struct kmem_cache *s; void *x = (void *)object; @@ -6858,13 +6857,12 @@ void kfree_nolock(const void *object) if (unlikely(ZERO_OR_NULL_PTR(object))) return; - folio = virt_to_folio(object); - if (unlikely(!folio_test_slab(folio))) { + slab = virt_to_slab(object); + if (unlikely(!slab)) { WARN_ONCE(1, "large_kmalloc is not supported by kfree_nolock()"); return; } - slab = folio_slab(folio); s = slab->slab_cache; memcg_slab_free_hook(s, slab, &x, 1); -- 2.47.3