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authorMatthew Wilcox (Oracle) <willy@infradead.org>2025-11-13 00:09:22 +0000
committerVlastimil Babka <vbabka@suse.cz>2025-11-13 11:01:08 +0100
commite4090216859054043f8ba50866a2fb9c8e6d6b5b (patch)
tree36f23ab89448236564d6e15a60f2782b9bbf57b9
parentf262cfd75d52eb285d696d0c7357dc853d7bc7ea (diff)
slab: Remove folio references from kfree()
This should generate identical code to the previous version, but without any dependency on how folios work. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Link: https://patch.msgid.link/20251113000932.1589073-9-willy@infradead.org Reviewed-by: Harry Yoo <harry.yoo@oracle.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
-rw-r--r--mm/slub.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 56c7ddff43fa..0386994c0cb7 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -6817,7 +6817,7 @@ void kvfree_rcu_cb(struct rcu_head *head)
*/
void kfree(const void *object)
{
- struct folio *folio;
+ struct page *page;
struct slab *slab;
struct kmem_cache *s;
void *x = (void *)object;
@@ -6827,13 +6827,13 @@ void kfree(const void *object)
if (unlikely(ZERO_OR_NULL_PTR(object)))
return;
- folio = virt_to_folio(object);
- if (unlikely(!folio_test_slab(folio))) {
- free_large_kmalloc(&folio->page, (void *)object);
+ page = virt_to_page(object);
+ slab = page_slab(page);
+ if (!slab) {
+ free_large_kmalloc(page, (void *)object);
return;
}
- slab = folio_slab(folio);
s = slab->slab_cache;
slab_free(s, slab, x, _RET_IP_);
}