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io_uring: move cq/sq user offset init around 

Move user SQ/CQ offset initialisation at the end of io_prepare_config()
where it already calculated all information to set it properly.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
pull/1354/merge
Pavel Begunkov 2025-11-12 12:45:59 +00:00 committed by Jens Axboe
parent eb76ff6a68
commit d741c62555
1 changed files with 20 additions and 21 deletions
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41
io_uring/io_uring.c
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@ -3519,27 +3519,6 @@ static int io_uring_fill_params(struct io_uring_params *p)
p->cq_entries = 2 * p->sq_entries;
}
p->sq_off.head = offsetof(struct io_rings, sq.head);
p->sq_off.tail = offsetof(struct io_rings, sq.tail);
p->sq_off.ring_mask = offsetof(struct io_rings, sq_ring_mask);
p->sq_off.ring_entries = offsetof(struct io_rings, sq_ring_entries);
p->sq_off.flags = offsetof(struct io_rings, sq_flags);
p->sq_off.dropped = offsetof(struct io_rings, sq_dropped);
p->sq_off.resv1 = 0;
if (!(p->flags & IORING_SETUP_NO_MMAP))
p->sq_off.user_addr = 0;
p->cq_off.head = offsetof(struct io_rings, cq.head);
p->cq_off.tail = offsetof(struct io_rings, cq.tail);
p->cq_off.ring_mask = offsetof(struct io_rings, cq_ring_mask);
p->cq_off.ring_entries = offsetof(struct io_rings, cq_ring_entries);
p->cq_off.overflow = offsetof(struct io_rings, cq_overflow);
p->cq_off.cqes = offsetof(struct io_rings, cqes);
p->cq_off.flags = offsetof(struct io_rings, cq_flags);
p->cq_off.resv1 = 0;
if (!(p->flags & IORING_SETUP_NO_MMAP))
p->cq_off.user_addr = 0;
return 0;
}
@ -3561,6 +3540,26 @@ int io_prepare_config(struct io_ctx_config *config)
if (ret)
return ret;
p->sq_off.head = offsetof(struct io_rings, sq.head);
p->sq_off.tail = offsetof(struct io_rings, sq.tail);
p->sq_off.ring_mask = offsetof(struct io_rings, sq_ring_mask);
p->sq_off.ring_entries = offsetof(struct io_rings, sq_ring_entries);
p->sq_off.flags = offsetof(struct io_rings, sq_flags);
p->sq_off.dropped = offsetof(struct io_rings, sq_dropped);
p->sq_off.resv1 = 0;
if (!(p->flags & IORING_SETUP_NO_MMAP))
p->sq_off.user_addr = 0;
p->cq_off.head = offsetof(struct io_rings, cq.head);
p->cq_off.tail = offsetof(struct io_rings, cq.tail);
p->cq_off.ring_mask = offsetof(struct io_rings, cq_ring_mask);
p->cq_off.ring_entries = offsetof(struct io_rings, cq_ring_entries);
p->cq_off.overflow = offsetof(struct io_rings, cq_overflow);
p->cq_off.cqes = offsetof(struct io_rings, cqes);
p->cq_off.flags = offsetof(struct io_rings, cq_flags);
p->cq_off.resv1 = 0;
if (!(p->flags & IORING_SETUP_NO_MMAP))
p->cq_off.user_addr = 0;
if (!(p->flags & IORING_SETUP_NO_SQARRAY))
p->sq_off.array = config->layout.sq_array_offset;