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From: Vlastimil Babka <vbabka@suse.cz>
To: Matthew Wilcox <willy@infradead.org>,
	Christoph Lameter <cl@linux.com>,
	David Rientjes <rientjes@google.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Pekka Enberg <penberg@kernel.org>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Roman Gushchin <guro@fb.com>, Hyeonggon Yoo <42.hyeyoo@gmail.com>,
	patches@lists.linux.dev, Vlastimil Babka <vbabka@suse.cz>
Subject: [PATCH v4 28/32] mm/slub: Simplify struct slab slabs field definition
Date: Tue,  4 Jan 2022 01:10:42 +0100	[thread overview]
Message-ID: <20220104001046.12263-29-vbabka@suse.cz> (raw)
In-Reply-To: <20220104001046.12263-1-vbabka@suse.cz>

Before commit b47291ef02b0 ("mm, slub: change percpu partial accounting
from objects to pages") we had to fit two integer fields into a native
word size, so we used short int on 32-bit and int on 64-bit via #ifdef.
After that commit there is only one integer field, so we can simply
define it as int everywhere.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
---
 mm/slab.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/mm/slab.h b/mm/slab.h
index b8da249f44f9..362832f465e6 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -27,11 +27,7 @@ struct slab {
 		struct rcu_head rcu_head;
 		struct {
 			struct slab *next;
-#ifdef CONFIG_64BIT
 			int slabs;	/* Nr of slabs left */
-#else
-			short int slabs;
-#endif
 		};
 	};
 	struct kmem_cache *slab_cache;
-- 
2.34.1


  parent reply	other threads:[~2022-01-04  0:11 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-04  0:10 [PATCH v4 00/32] Separate struct slab from struct page Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 01/32] mm: add virt_to_folio() and folio_address() Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 02/32] mm/slab: Dissolve slab_map_pages() in its caller Vlastimil Babka
2022-01-06  6:40   ` Hyeonggon Yoo
2022-01-04  0:10 ` [PATCH v4 03/32] mm/slub: Make object_err() static Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 04/32] mm: Split slab into its own type Vlastimil Babka
2022-01-06 11:54   ` Hyeonggon Yoo
2022-01-04  0:10 ` [PATCH v4 05/32] mm: Convert [un]account_slab_page() to struct slab Vlastimil Babka
2022-01-06 13:04   ` Hyeonggon Yoo
2022-01-04  0:10 ` [PATCH v4 06/32] mm: Convert virt_to_cache() to use " Vlastimil Babka
2022-01-06  6:44   ` Hyeonggon Yoo
2022-01-04  0:10 ` [PATCH v4 07/32] mm: Convert __ksize() to " Vlastimil Babka
2022-01-06 13:42   ` Hyeonggon Yoo
2022-01-06 17:26     ` Vlastimil Babka
2022-01-08  6:21       ` Hyeonggon Yoo
2022-01-04  0:10 ` [PATCH v4 08/32] mm: Use struct slab in kmem_obj_info() Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 09/32] mm: Convert check_heap_object() to use struct slab Vlastimil Babka
2022-01-06 13:56   ` Hyeonggon Yoo
2022-01-04  0:10 ` [PATCH v4 10/32] mm/slub: Convert detached_freelist to use a " Vlastimil Babka
2022-01-05  0:58   ` Roman Gushchin
2022-01-04  0:10 ` [PATCH v4 11/32] mm/slub: Convert kfree() " Vlastimil Babka
2022-01-05  1:00   ` Roman Gushchin
2022-01-04  0:10 ` [PATCH v4 12/32] mm/slub: Convert __slab_lock() and __slab_unlock() to " Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 13/32] mm/slub: Convert print_page_info() to print_slab_info() Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 14/32] mm/slub: Convert alloc_slab_page() to return a struct slab Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 15/32] mm/slub: Convert __free_slab() to use " Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 16/32] mm/slub: Convert pfmemalloc_match() to take a " Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 17/32] mm/slub: Convert most struct page to struct slab by spatch Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 18/32] mm/slub: Finish struct page to struct slab conversion Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 19/32] mm/slab: Convert kmem_getpages() and kmem_freepages() to struct slab Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 20/32] mm/slab: Convert most struct page to struct slab by spatch Vlastimil Babka
2022-01-05  1:52   ` Roman Gushchin
2022-01-04  0:10 ` [PATCH v4 21/32] mm/slab: Finish struct page to struct slab conversion Vlastimil Babka
2022-01-05  2:05   ` Roman Gushchin
2022-01-04  0:10 ` [PATCH v4 22/32] mm: Convert struct page to struct slab in functions used by other subsystems Vlastimil Babka
2022-01-05  2:12   ` Roman Gushchin
2022-01-05 16:39     ` Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 23/32] mm/memcg: Convert slab objcgs from struct page to struct slab Vlastimil Babka
2022-01-05  2:41   ` Roman Gushchin
2022-01-05 17:08     ` Vlastimil Babka
2022-01-06  3:36       ` Roman Gushchin
2022-01-05  2:55   ` Roman Gushchin
2022-01-04  0:10 ` [PATCH v4 24/32] mm/slob: Convert SLOB to use struct slab and struct folio Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 25/32] mm/kasan: Convert to struct folio and struct slab Vlastimil Babka
2022-01-06  4:06   ` Roman Gushchin
2022-01-04  0:10 ` [PATCH v4 26/32] mm/kfence: Convert kfence_guarded_alloc() to " Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 27/32] mm/sl*b: Differentiate struct slab fields by sl*b implementations Vlastimil Babka
2022-01-06  4:12   ` Roman Gushchin
2022-01-04  0:10 ` Vlastimil Babka [this message]
2022-01-06  4:13   ` [PATCH v4 28/32] mm/slub: Simplify struct slab slabs field definition Roman Gushchin
2022-01-04  0:10 ` [PATCH v4 29/32] mm/slub: Define struct slab fields for CONFIG_SLUB_CPU_PARTIAL only when enabled Vlastimil Babka
2022-01-06  4:16   ` Roman Gushchin
2022-01-04  0:10 ` [PATCH v4 30/32] zsmalloc: Stop using slab fields in struct page Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 31/32] bootmem: Use page->index instead of page->freelist Vlastimil Babka
2022-01-04  0:10 ` [PATCH v4 32/32] mm/slob: Remove unnecessary page_mapcount_reset() function call Vlastimil Babka

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