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BUG: KCSAN: data-race in __blk_mq_requeue_request / bt_tags_for_each

write to 0xffff888103234460 of 4 bytes by task 7728 on cpu 0:
 __blk_mq_put_driver_tag block/blk-mq.h:256 [inline]
 blk_mq_put_driver_tag block/blk-mq.h:269 [inline]
 __blk_mq_requeue_request+0x9f/0x2b0 block/blk-mq.c:1424
 blk_mq_handle_dev_resource block/blk-mq.c:1925 [inline]
 blk_mq_dispatch_rq_list+0x9a2/0x11f0 block/blk-mq.c:2066
 __blk_mq_sched_dispatch_requests+0x1ab/0x260 block/blk-mq-sched.c:305
 blk_mq_sched_dispatch_requests+0x93/0x100 block/blk-mq-sched.c:338
 __blk_mq_run_hw_queue+0x8e/0x110 block/blk-mq.c:2175
 __blk_mq_delay_run_hw_queue+0xb3/0x3a0 block/blk-mq.c:2251
 blk_mq_run_hw_queue+0x19f/0x330 block/blk-mq.c:2299
 blk_mq_sched_insert_requests+0x1da/0x2c0 block/blk-mq-sched.c:492
 blk_mq_dispatch_plug_list block/blk-mq.c:2746 [inline]
 blk_mq_flush_plug_list+0x519/0x660 block/blk-mq.c:2788
 blk_add_rq_to_plug+0x102/0x3d0 block/blk-mq.c:1297
 blk_mq_submit_bio+0xa2b/0xe10 block/blk-mq.c:2983
 __submit_bio+0x130/0x360 block/blk-core.c:602
 __submit_bio_noacct_mq block/blk-core.c:679 [inline]
 submit_bio_noacct_nocheck+0x4cd/0x600 block/blk-core.c:708
 submit_bio_noacct+0x76f/0x900 block/blk-core.c:807
 submit_bio+0x101/0x110 block/blk-core.c:843
 iomap_dio_submit_bio fs/iomap/direct-io.c:77 [inline]
 iomap_dio_bio_iter+0x95a/0xb00 fs/iomap/direct-io.c:354
 __iomap_dio_rw+0x9c2/0x1050 fs/iomap/direct-io.c:595
 iomap_dio_rw+0x40/0x90 fs/iomap/direct-io.c:683
 ext4_dio_write_iter fs/ext4/file.c:597 [inline]
 ext4_file_write_iter+0x9e6/0x10e0 fs/ext4/file.c:708
 call_write_iter include/linux/fs.h:1851 [inline]
 aio_write+0x2db/0x400 fs/aio.c:1604
 io_submit_one+0xba4/0x12c0 fs/aio.c:2023
 __do_sys_io_submit fs/aio.c:2082 [inline]
 __se_sys_io_submit+0xf5/0x280 fs/aio.c:2052
 __x64_sys_io_submit+0x43/0x50 fs/aio.c:2052
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888103234460 of 4 bytes by task 7734 on cpu 1:
 blk_mq_find_and_get_req block/blk-mq-tag.c:253 [inline]
 bt_tags_iter block/blk-mq-tag.c:349 [inline]
 __sbitmap_for_each_set include/linux/sbitmap.h:281 [inline]
 sbitmap_for_each_set include/linux/sbitmap.h:302 [inline]
 bt_tags_for_each+0x2e2/0x500 block/blk-mq-tag.c:384
 __blk_mq_all_tag_iter block/blk-mq-tag.c:395 [inline]
 blk_mq_tagset_busy_iter+0x114/0x150 block/blk-mq-tag.c:439
 scsi_host_busy+0x4f/0x80 drivers/scsi/hosts.c:603
 scsi_host_queue_ready drivers/scsi/scsi_lib.c:1344 [inline]
 scsi_queue_rq+0x30a/0x1990 drivers/scsi/scsi_lib.c:1734
 blk_mq_dispatch_rq_list+0x7b1/0x11f0 block/blk-mq.c:2057
 __blk_mq_sched_dispatch_requests+0x1ab/0x260 block/blk-mq-sched.c:305
 blk_mq_sched_dispatch_requests+0x93/0x100 block/blk-mq-sched.c:338
 __blk_mq_run_hw_queue+0x8e/0x110 block/blk-mq.c:2175
 __blk_mq_delay_run_hw_queue+0xb3/0x3a0 block/blk-mq.c:2251
 blk_mq_run_hw_queue+0x19f/0x330 block/blk-mq.c:2299
 blk_mq_sched_insert_requests+0x1da/0x2c0 block/blk-mq-sched.c:492
 blk_mq_dispatch_plug_list block/blk-mq.c:2746 [inline]
 blk_mq_flush_plug_list+0x519/0x660 block/blk-mq.c:2788
 blk_add_rq_to_plug+0x102/0x3d0 block/blk-mq.c:1297
 blk_mq_submit_bio+0xa2b/0xe10 block/blk-mq.c:2983
 __submit_bio+0x130/0x360 block/blk-core.c:602
 __submit_bio_noacct_mq block/blk-core.c:679 [inline]
 submit_bio_noacct_nocheck+0x4cd/0x600 block/blk-core.c:708
 submit_bio_noacct+0x76f/0x900 block/blk-core.c:807
 submit_bio+0x101/0x110 block/blk-core.c:843
 iomap_dio_submit_bio fs/iomap/direct-io.c:77 [inline]
 iomap_dio_bio_iter+0x95a/0xb00 fs/iomap/direct-io.c:354
 __iomap_dio_rw+0x9c2/0x1050 fs/iomap/direct-io.c:595
 iomap_dio_rw+0x40/0x90 fs/iomap/direct-io.c:683
 ext4_dio_write_iter fs/ext4/file.c:597 [inline]
 ext4_file_write_iter+0x9e6/0x10e0 fs/ext4/file.c:708
 call_write_iter include/linux/fs.h:1851 [inline]
 aio_write+0x2db/0x400 fs/aio.c:1604
 io_submit_one+0xba4/0x12c0 fs/aio.c:2023
 __do_sys_io_submit fs/aio.c:2082 [inline]
 __se_sys_io_submit+0xf5/0x280 fs/aio.c:2052
 __x64_sys_io_submit+0x43/0x50 fs/aio.c:2052
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x00001912 -> 0xffffffff

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 7734 Comm: syz-executor.0 Not tainted 6.3.0-rc7-syzkaller-00060-g789b4a41c247 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
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syz-executor.0 (7734) used greatest stack depth: 9320 bytes left