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io_uring: port to struct kmem_cache_args

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Port req_cachep to struct kmem_cache_args.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Christian Brauner 2024-09-05 09:57:00 +02:00 committed by Vlastimil Babka
parent 781aee7556
commit a6711d1cd4
1 changed files with 8 additions and 6 deletions
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14
io_uring/io_uring.c
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@ -3638,6 +3638,11 @@ SYSCALL_DEFINE2(io_uring_setup, u32, entries,
static int __init io_uring_init(void)
{
struct kmem_cache_args kmem_args = {
.useroffset = offsetof(struct io_kiocb, cmd.data),
.usersize = sizeof_field(struct io_kiocb, cmd.data),
};
#define __BUILD_BUG_VERIFY_OFFSET_SIZE(stype, eoffset, esize, ename) do { \
BUILD_BUG_ON(offsetof(stype, ename) != eoffset); \
BUILD_BUG_ON(sizeof_field(stype, ename) != esize); \
@ -3722,12 +3727,9 @@ static int __init io_uring_init(void)
* range, and HARDENED_USERCOPY will complain if we haven't
* correctly annotated this range.
*/
req_cachep = kmem_cache_create_usercopy("io_kiocb",
sizeof(struct io_kiocb), 0,
SLAB_HWCACHE_ALIGN | SLAB_PANIC |
SLAB_ACCOUNT | SLAB_TYPESAFE_BY_RCU,
offsetof(struct io_kiocb, cmd.data),
sizeof_field(struct io_kiocb, cmd.data), NULL);
req_cachep = kmem_cache_create("io_kiocb", sizeof(struct io_kiocb), &kmem_args,
SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT |
SLAB_TYPESAFE_BY_RCU);
io_buf_cachep = KMEM_CACHE(io_buffer,
SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT);