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io_uring: specify freeptr usage for SLAB_TYPESAFE_BY_RCU io_kiocb cache

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Doesn't matter right now as there's still some bytes left for it, but
let's prepare for the io_kiocb potentially growing and add a specific
freeptr offset for it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2024-10-15 12:19:33 -06:00
parent ff1256b8f3
commit aaa736b186
1 changed files with 2 additions and 0 deletions
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2
io_uring/io_uring.c
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@ -3846,6 +3846,8 @@ static int __init io_uring_init(void)
struct kmem_cache_args kmem_args = { struct kmem_cache_args kmem_args = {
.useroffset = offsetof(struct io_kiocb, cmd.data), .useroffset = offsetof(struct io_kiocb, cmd.data),
.usersize = sizeof_field(struct io_kiocb, cmd.data), .usersize = sizeof_field(struct io_kiocb, cmd.data),
.freeptr_offset = offsetof(struct io_kiocb, work),
.use_freeptr_offset = true,
}; };
#define __BUILD_BUG_VERIFY_OFFSET_SIZE(stype, eoffset, esize, ename) do { \ #define __BUILD_BUG_VERIFY_OFFSET_SIZE(stype, eoffset, esize, ename) do { \