On 4/27/23 8:31?AM, Tudor Cretu wrote: > The size of the ring is the product of ring_entries and the size of > struct io_uring_buf. Using struct_size is equivalent to > (ring_entries + 1) * sizeof(struct io_uring_buf) > and generates an off-by-one error. Fix it by using size_mul directly. Looks right, so we're doing one entry too much. This is probably a remnant of when the initial version had it done a bit differently, but we overlaid the tail with the first entry reserved field. -- Jens Axboe
