==================================================================
BUG: KCSAN: data-race in __blk_mq_sched_dispatch_requests / __blk_mq_sched_dispatch_requests

write to 0xffff888101ce2010 of 8 bytes by task 74 on cpu 1:
 INIT_LIST_HEAD include/linux/list.h:38 [inline]
 list_splice_init include/linux/list.h:485 [inline]
 __blk_mq_sched_dispatch_requests+0x137/0x270 block/blk-mq-sched.c:306
 blk_mq_sched_dispatch_requests+0x9f/0x110 block/blk-mq-sched.c:358
 __blk_mq_run_hw_queue+0xc1/0x140 block/blk-mq.c:1785
 __blk_mq_delay_run_hw_queue+0x199/0x360 block/blk-mq.c:1862
 blk_mq_run_hw_queue+0x231/0x260 block/blk-mq.c:1915
 blk_mq_run_hw_queues+0x1d1/0x230 block/blk-mq.c:1978
 blk_mq_requeue_work+0x3b4/0x3e0 block/blk-mq.c:1121
 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298
 worker_thread+0x616/0xa70 kernel/workqueue.c:2445
 kthread+0x2c7/0x2e0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30

read to 0xffff888101ce2010 of 8 bytes by task 39 on cpu 0:
 list_empty_careful include/linux/list.h:321 [inline]
 __blk_mq_sched_dispatch_requests+0x80/0x270 block/blk-mq-sched.c:303
 blk_mq_sched_dispatch_requests+0x9f/0x110 block/blk-mq-sched.c:358
 __blk_mq_run_hw_queue+0xc1/0x140 block/blk-mq.c:1785
 blk_mq_run_work_fn+0x3d/0x50 block/blk-mq.c:2117
 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298
 worker_thread+0x616/0xa70 kernel/workqueue.c:2445
 kthread+0x2c7/0x2e0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30

value changed: 0xffff8881029eabc8 -> 0xffff888101ce2008

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 39 Comm: kworker/0:1H Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: kblockd blk_mq_run_work_fn
==================================================================