Commit 4a2c2110 authored by Matthew Wilcox (Oracle)'s avatar Matthew Wilcox (Oracle) Committed by Vlastimil Babka
Browse files

slab: Remove folio references from build_detached_freelist() 



Use pages and slabs directly instead of converting to folios.

Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Link: https://patch.msgid.link/20251113000932.1589073-11-willy@infradead.org


Reviewed-by: default avatarHarry Yoo <harry.yoo@oracle.com>
Signed-off-by: default avatarVlastimil Babka <vbabka@suse.cz>
parent 5db009dc

mm/slub.c

+9 −7
Original line number Diff line number Diff line
@@ -7245,23 +7245,25 @@ int build_detached_freelist(struct kmem_cache *s, size_t size, 
{

	int lookahead = 3;

	void *object;

	struct folio *folio;

	struct page *page;

	struct slab *slab;

	size_t same;



	object = p[--size];

	folio = virt_to_folio(object);

	page = virt_to_page(object);

	slab = page_slab(page);

	if (!s) {

		/* Handle kalloc'ed objects */

		if (unlikely(!folio_test_slab(folio))) {

			free_large_kmalloc(&folio->page, object);

		if (!slab) {

			free_large_kmalloc(page, object);

			df->slab = NULL;

			return size;

		}

		/* Derive kmem_cache from object */

		df->slab = folio_slab(folio);

		df->s = df->slab->slab_cache;

		df->slab = slab;

		df->s = slab->slab_cache;

	} else {

		df->slab = folio_slab(folio);

		df->slab = slab;

		df->s = cache_from_obj(s, object); /* Support for memcg */

	}