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io_uring/kbuf: use io_create_region for kbuf creation 

kbuf ring is published by io_buffer_add_list(), which correctly protects
with mmap_lock, there is no need to use io_create_region_mmap_safe()
before as the region is not yet exposed to the userspace via mmap.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2025-10-16 14:23:22 +01:00 committed by Jens Axboe
parent 6e9752977c
commit dec10a1ad1
1 changed files with 1 additions and 1 deletions
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2
io_uring/kbuf.c
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@ -630,7 +630,7 @@ int io_register_pbuf_ring(struct io_ring_ctx *ctx, void __user *arg)
rd.user_addr = reg.ring_addr;
rd.flags |= IORING_MEM_REGION_TYPE_USER;
}
ret = io_create_region_mmap_safe(ctx, &bl->region, &rd, mmap_offset);
ret = io_create_region(ctx, &bl->region, &rd, mmap_offset);
if (ret)
goto fail;
br = io_region_get_ptr(&bl->region);