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[v3,11/17] slab: port KMEM_CACHE_USERCOPY() to struct kmem_cache_args

Message ID 20240904-work-kmem_cache_args-v3-11-05db2179a8c2@kernel.org (mailing list archive)
State New
Headers show
Series slab: add struct kmem_cache_args | expand

Commit Message

Christian Brauner Sept. 4, 2024, 10:21 a.m. UTC 
Make KMEM_CACHE_USERCOPY() use struct kmem_cache_args.

Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
---
 include/linux/slab.h | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)
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Patch

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