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From: Christian Brauner <brauner@kernel.org>
To: Vlastimil Babka <vbabka@suse.cz>, Jens Axboe <axboe@kernel.dk>,
	 Jann Horn <jannh@google.com>,
	 Linus Torvalds <torvalds@linux-foundation.org>,
	 Mike Rapoport <rppt@kernel.org>
Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
	 Christian Brauner <brauner@kernel.org>
Subject: [PATCH v2 11/15] slab: port KMEM_CACHE_USERCOPY() to struct kmem_cache_args
Date: Tue, 03 Sep 2024 16:20:52 +0200	[thread overview]
Message-ID: <20240903-work-kmem_cache_args-v2-11-76f97e9a4560@kernel.org> (raw)
In-Reply-To: <20240903-work-kmem_cache_args-v2-0-76f97e9a4560@kernel.org>

Make KMEM_CACHE_USERCOPY() use struct kmem_cache_args.

Signed-off-by: Christian Brauner <brauner@kernel.org>
---
 include/linux/slab.h | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/include/linux/slab.h b/include/linux/slab.h
index d9c2ed5bc02f..aced16a08700 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -294,12 +294,14 @@ int kmem_cache_shrink(struct kmem_cache *s);
  * To whitelist a single field for copying to/from usercopy, use this
  * macro instead for KMEM_CACHE() above.
  */
-#define KMEM_CACHE_USERCOPY(__struct, __flags, __field)			\
-		kmem_cache_create_usercopy(#__struct,			\
-			sizeof(struct __struct),			\
-			__alignof__(struct __struct), (__flags),	\
-			offsetof(struct __struct, __field),		\
-			sizeof_field(struct __struct, __field), NULL)
+#define KMEM_CACHE_USERCOPY(__struct, __flags, __field)						\
+	__kmem_cache_create_args(#__struct, sizeof(struct __struct),				\
+			&(struct kmem_cache_args) {						\
+				.align		= __alignof__(struct __struct),			\
+				.useroffset	= offsetof(struct __struct, __field),		\
+				.usersize	= sizeof_field(struct __struct, __field),	\
+				.ctor		= NULL,						\
+			}, (__flags))
 
 /*
  * Common kmalloc functions provided by all allocators

-- 
2.45.2


  parent reply	other threads:[~2024-09-03 14:22 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-03 14:20 [PATCH v2 00/15] slab: add struct kmem_cache_args Christian Brauner
2024-09-03 14:20 ` [PATCH v2 01/15] sl*b: s/__kmem_cache_create/do_kmem_cache_create/g Christian Brauner
2024-09-04  4:52   ` Mike Rapoport
2024-09-03 14:20 ` [PATCH v2 02/15] slab: add struct kmem_cache_args Christian Brauner
2024-09-04  4:54   ` Mike Rapoport
2024-09-04  8:13   ` Vlastimil Babka
2024-09-04  9:06     ` Christian Brauner
2024-09-04 15:16   ` Mike Rapoport
2024-09-04 15:48     ` Christian Brauner
2024-09-04 16:16       ` Mike Rapoport
2024-09-04 16:53         ` Christian Brauner
2024-09-04 15:49     ` Vlastimil Babka
2024-09-04 16:16       ` Mike Rapoport
2024-09-04 16:22         ` Vlastimil Babka
2024-09-04 18:21           ` Christian Brauner
2024-09-04 18:53             ` Linus Torvalds
2024-09-04 20:10               ` Christian Brauner
2024-09-03 14:20 ` [PATCH v2 03/15] slab: port kmem_cache_create() to " Christian Brauner
2024-09-04  4:55   ` Mike Rapoport
2024-09-03 14:20 ` [PATCH v2 04/15] slab: port kmem_cache_create_rcu() " Christian Brauner
2024-09-04  4:55   ` Mike Rapoport
2024-09-03 14:20 ` [PATCH v2 05/15] slab: port kmem_cache_create_usercopy() " Christian Brauner
2024-09-04  4:56   ` Mike Rapoport
2024-09-04  8:14   ` Vlastimil Babka
2024-09-04  8:59     ` Christian Brauner
2024-09-03 14:20 ` [PATCH v2 06/15] slab: pass struct kmem_cache_args to create_cache() Christian Brauner
2024-09-04  4:59   ` Mike Rapoport
2024-09-03 14:20 ` [PATCH v2 07/15] slub: pull kmem_cache_open() into do_kmem_cache_create() Christian Brauner
2024-09-04  5:02   ` Mike Rapoport
2024-09-03 14:20 ` [PATCH v2 08/15] slab: pass struct kmem_cache_args to do_kmem_cache_create() Christian Brauner
2024-09-04  5:04   ` Mike Rapoport
2024-09-03 14:20 ` [PATCH v2 09/15] sl*b: remove rcu_freeptr_offset from struct kmem_cache Christian Brauner
2024-09-04  5:08   ` Mike Rapoport
2024-09-04  8:16   ` Vlastimil Babka
2024-09-04  8:58     ` Christian Brauner
2024-09-03 14:20 ` [PATCH v2 10/15] slab: port KMEM_CACHE() to struct kmem_cache_args Christian Brauner
2024-09-04  5:08   ` Mike Rapoport
2024-09-03 14:20 ` Christian Brauner [this message]
2024-09-04  5:09   ` [PATCH v2 11/15] slab: port KMEM_CACHE_USERCOPY() " Mike Rapoport
2024-09-03 14:20 ` [PATCH v2 12/15] slab: create kmem_cache_create() compatibility layer Christian Brauner
2024-09-04  5:14   ` Mike Rapoport
2024-09-04  9:44     ` [PATCH 17/16] slab: make kmem_cache_create_usercopy() static inline Christian Brauner
2024-09-04  9:44     ` [PATCH 18/16] slab: make __kmem_cache_create() " Christian Brauner
2024-09-04  9:45     ` [PATCH v2 12/15] slab: create kmem_cache_create() compatibility layer Christian Brauner
2024-09-04 10:50       ` Vlastimil Babka
2024-09-04 11:38         ` Christian Brauner
2024-09-04 13:33           ` Vlastimil Babka
2024-09-04 14:44             ` Christian Brauner
2024-09-04 15:11               ` Mike Rapoport
2024-09-04 15:38                 ` Christian Brauner
2024-09-04 15:40                 ` Vlastimil Babka
2024-09-03 14:20 ` [PATCH v2 13/15] file: port to struct kmem_cache_args Christian Brauner
2024-09-04  5:15   ` Mike Rapoport
2024-09-03 14:20 ` [PATCH v2 14/15] slab: remove kmem_cache_create_rcu() Christian Brauner
2024-09-04  5:15   ` Mike Rapoport
2024-09-04  8:18   ` Vlastimil Babka
2024-09-04  8:55     ` Christian Brauner
2024-09-03 14:20 ` [PATCH v2 15/15] io_uring: port to struct kmem_cache_args Christian Brauner
2024-09-04  5:16   ` Mike Rapoport
2024-09-04  8:20   ` Vlastimil Babka
2024-09-04  8:50     ` Christian Brauner
2024-09-03 19:22 ` [PATCH v2 00/15] slab: add " Kees Cook
2024-09-03 19:25 ` Jens Axboe
2024-09-06  6:49   ` Christian Brauner
2024-09-04  8:25 ` Vlastimil Babka
2024-09-04  8:42   ` Christian Brauner
2024-09-04  9:05     ` Vlastimil Babka

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