On Tue, Sep 03, 2024 at 04:20:52PM +0200, Christian Brauner wrote:
> Make KMEM_CACHE_USERCOPY() use struct kmem_cache_args.
>
> Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
> ---
> 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
>
--
Sincerely yours,
Mike.
