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BUG: KCSAN: data-race in __io_req_complete_post / io_wake_function

read-write to 0xffff88813d6aca10 of 4 bytes by task 29571 on cpu 1:
 io_get_cqe io_uring/io_uring.h:99 [inline]
 __io_fill_cqe_req io_uring/io_uring.h:119 [inline]
 __io_req_complete_post+0x9e/0xb50 io_uring/io_uring.c:806
 io_req_complete_post io_uring/io_uring.c:815 [inline]
 io_issue_sqe+0x43c/0x900 io_uring/io_uring.c:1589
 io_wq_submit_work+0x3de/0x580 io_uring/io_uring.c:1654
 io_worker_handle_work+0x547/0xbf0 io_uring/io-wq.c:587
 io_wqe_worker+0x202/0x8f0 io_uring/io-wq.c:632
 ret_from_fork+0x1f/0x30

read to 0xffff88813d6aca10 of 4 bytes by task 29558 on cpu 0:
 io_should_wake io_uring/io_uring.c:2155 [inline]
 io_wake_function+0x36/0x100 io_uring/io_uring.c:2175
 __wake_up_common+0xbc/0x130 kernel/sched/wait.c:107
 __wake_up_common_lock kernel/sched/wait.c:137 [inline]
 __wake_up+0x80/0xc0 kernel/sched/wait.c:156
 io_cqring_wake io_uring/io_uring.h:206 [inline]
 io_cqring_ev_posted io_uring/io_uring.c:540 [inline]
 __io_cq_unlock_post io_uring/io_uring.c:548 [inline]
 io_cq_unlock_post io_uring/io_uring.c:553 [inline]
 io_req_complete_post io_uring/io_uring.c:816 [inline]
 io_issue_sqe+0x4e0/0x900 io_uring/io_uring.c:1589
 io_wq_submit_work+0x3de/0x580 io_uring/io_uring.c:1654
 io_worker_handle_work+0x547/0xbf0 io_uring/io-wq.c:587
 io_wqe_worker+0x202/0x8f0 io_uring/io-wq.c:632
 ret_from_fork+0x1f/0x30

value changed: 0x00002b27 -> 0x00002b28

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 29558 Comm: iou-wrk-29499 Not tainted 6.0.0-rc5-syzkaller-00097-g38eddeedbbea-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
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