io_uring/register: use correct location for io_rings_layout

A previous consolidated the ring size etc calculations into
io_prepare_config(), but missed updating io_register_resize_rings()
correctly to use the calculated values. As a result, it ended up using
on-stack uninitialized values, and hence either failed validating the
size correctly, or just failed resizing because the sizes were random.

This caused failures in the liburing regression tests:

[...]
Running test resize-rings.t
resize=-7
test_basic 3000 failed
Test resize-rings.t failed with ret 1
Running test resize-rings.t /dev/sda
resize=-7
test_basic 3000 failed
Test resize-rings.t failed with ret 1
Running test resize-rings.t /dev/nvme1n1
resize=-7
test_basic 3000 failed
Test resize-rings.t failed with ret 1
Running test resize-rings.t /dev/dm-0
resize=-7
test_basic 3000 failed
Test resize-rings.t failed with ret 1

because io_create_region() would return -E2BIG because of unintialized
reg->size values.

Adjust the struct io_rings_layout rl pointer to point to the correct
location, and remove the (now dead) __rl on stack struct.

Fixes: eb76ff6a6829 ("io_uring: pre-calculate scq layout")
Signed-off-by: Jens Axboe <axboe@kernel.dk>

0 files changed, 0 insertions, 0 deletions