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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: Vlastimil Babka <vbabka@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
	Christoph Lameter <cl@gentwo.org>,
	David Rientjes <rientjes@google.com>,
	Roman Gushchin <roman.gushchin@linux.dev>,
	Harry Yoo <harry.yoo@oracle.com>,
	linux-mm@kvack.org
Subject: [PATCH 02/22] slab: Remove unnecessary test from alloc_single_from_partial()
Date: Fri, 29 Aug 2025 16:47:06 +0100	[thread overview]
Message-ID: <20250829154728.3397606-3-willy@infradead.org> (raw)
In-Reply-To: <20250829154728.3397606-1-willy@infradead.org>

We know this is a slab because we already modified slab->inuse
just two lines earlier.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 mm/slub.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index f737b85a326f..8fde324cd308 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3318,8 +3318,7 @@ static void *alloc_single_from_partial(struct kmem_cache *s,
 	slab->inuse++;
 
 	if (!alloc_debug_processing(s, slab, object, orig_size)) {
-		if (folio_test_slab(slab_folio(slab)))
-			remove_partial(n, slab);
+		remove_partial(n, slab);
 		return NULL;
 	}
 
-- 
2.47.2



  parent reply	other threads:[~2025-08-29 19:30 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-29 15:47 [PATCH 00/22] Prepare slab for memdescs Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 01/22] slab: Remove unnecessary test from alloc_debug_processing() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` Matthew Wilcox (Oracle) [this message]
2025-08-29 15:47 ` [PATCH 03/22] slab: Remove dead code in check_slab() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 04/22] slab: Remove dead code in free_consistency_checks() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 05/22] mm: Constify compound_order() and page_size() Matthew Wilcox (Oracle)
2025-08-29 20:42   ` Zi Yan
2025-08-29 22:53     ` Matthew Wilcox
2025-08-31  1:06       ` Zi Yan
2025-09-01 15:45   ` David Hildenbrand
2025-08-29 15:47 ` [PATCH 06/22] slab: Reimplement page_slab() Matthew Wilcox (Oracle)
2025-09-01 15:50   ` David Hildenbrand
2025-08-29 15:47 ` [PATCH 07/22] slab: Remove folio references from __ksize() Matthew Wilcox (Oracle)
2025-09-03  5:23   ` Matthew Wilcox
2025-08-29 15:47 ` [PATCH 08/22] slab: Remove folio references in memcg_slab_post_charge() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 09/22] slab: Remove folio references in slab alloc/free Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 10/22] slab: Remove folio references from ___kmalloc_large_node() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 11/22] slab: Remove folio references from free_large_kmalloc() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 12/22] slab: Remove folio references from kvfree_rcu_cb() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 13/22] slab: Remove folio references from kvfree() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 14/22] slab: Remove folio references from __do_krealloc() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 15/22] slab: Remove folio references from build_detached_freelist() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 16/22] slab: Remove dead code from free_large_kmalloc() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 17/22] slab: Remove folio references from kfree_rcu_sheaf() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 18/22] usercopy: Remove folio references from check_heap_object() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 19/22] memcg: Convert mem_cgroup_from_obj_folio() to mem_cgroup_from_obj_slab() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 20/22] kasan: Remove references to folio in __kasan_mempool_poison_object() Matthew Wilcox (Oracle)
2025-09-01 15:47   ` David Hildenbrand
2025-08-29 15:47 ` [PATCH 21/22] slab: Remove references to folios from virt_to_slab() Matthew Wilcox (Oracle)
2025-08-29 15:47 ` [PATCH 22/22] mm: Remove redundant test in validate_page_before_insert() Matthew Wilcox (Oracle)
2025-09-01 15:46   ` David Hildenbrand
2025-08-29 17:05 ` [PATCH 00/22] Prepare slab for memdescs Matthew Wilcox

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