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BUG: KCSAN: data-race in blk_mq_sched_dispatch_requests / blk_mq_sched_dispatch_requests

read-write to 0xffff888100fde350 of 8 bytes by task 79 on cpu 0:
 blk_mq_sched_dispatch_requests+0x84/0x100 block/blk-mq-sched.c:327
 blk_mq_run_work_fn+0x65/0xe0 block/blk-mq.c:2435
 process_one_work kernel/workqueue.c:2633 [inline]
 process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706
 worker_thread+0x525/0x730 kernel/workqueue.c:2787
 kthread+0x1d7/0x210 kernel/kthread.c:388
 ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

read-write to 0xffff888100fde350 of 8 bytes by task 2726 on cpu 1:
 blk_mq_sched_dispatch_requests+0x84/0x100 block/blk-mq-sched.c:327
 blk_mq_run_hw_queue+0x298/0x4c0 block/blk-mq.c:2265
 blk_mq_flush_plug_list+0x7a7/0xdb0 block/blk-mq.c:2813
 __blk_flush_plug+0x210/0x260 block/blk-core.c:1166
 blk_finish_plug+0x47/0x60 block/blk-core.c:1190
 ext4_do_writepages+0x1bc7/0x2100 fs/ext4/inode.c:2736
 ext4_normal_submit_inode_data_buffers+0xff/0x130 fs/ext4/inode.c:2800
 ext4_journal_submit_inode_data_buffers+0x59/0x140 fs/ext4/super.c:603
 journal_submit_data_buffers fs/jbd2/commit.c:226 [inline]
 jbd2_journal_commit_transaction+0x7ee/0x33a0 fs/jbd2/commit.c:546
 kjournald2+0x242/0x420 fs/jbd2/journal.c:201
 kthread+0x1d7/0x210 kernel/kthread.c:388
 ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

value changed: 0x00000000000085ca -> 0x00000000000085cb

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 2726 Comm: jbd2/sda1-8 Tainted: G        W          6.7.0-syzkaller-09928-g052d534373b7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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