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BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru

read to 0xffff88812c02a220 of 8 bytes by task 21961 on cpu 1:
 has_bh_in_lru+0x44/0x90 fs/buffer.c:1427
 on_each_cpu_cond_mask+0xa3/0x150 kernel/smp.c:695
 on_each_cpu_cond+0x44/0x60 kernel/smp.c:721
 invalidate_bh_lrus+0x32/0x40 fs/buffer.c:1436
 invalidate_bdev+0x69/0x90 fs/block_dev.c:96
 __invalidate_device+0x61/0x80 fs/block_dev.c:2233
 invalidate_partition+0x4c/0x70 block/genhd.c:1614
 blk_drop_partitions+0xf6/0x1a0 block/partition-generic.c:455
 bdev_disk_changed+0xdd/0x1a0 fs/block_dev.c:1519
 loop_reread_partitions+0x36/0x70 drivers/block/loop.c:644
 loop_set_status+0xa02/0xb30 drivers/block/loop.c:1356
 loop_set_status64+0x6d/0xb0 drivers/block/loop.c:1476
 lo_ioctl+0x30b/0xc80 drivers/block/loop.c:1619
 __blkdev_driver_ioctl block/ioctl.c:277 [inline]
 blkdev_ioctl+0xbe5/0x1260 block/ioctl.c:582
 block_ioctl+0x95/0xc0 fs/block_dev.c:1983
 vfs_ioctl fs/ioctl.c:47 [inline]
 file_ioctl fs/ioctl.c:545 [inline]
 do_vfs_ioctl+0x84f/0xcf0 fs/ioctl.c:732
 ksys_ioctl+0xbd/0xe0 fs/ioctl.c:749
 __do_sys_ioctl fs/ioctl.c:756 [inline]
 __se_sys_ioctl fs/ioctl.c:754 [inline]
 __x64_sys_ioctl+0x4c/0x60 fs/ioctl.c:754
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

write to 0xffff88812c02a220 of 8 bytes by task 21963 on cpu 0:
 invalidate_bh_lru+0x83/0xf0 fs/buffer.c:1416
 on_each_cpu_mask+0xfb/0x150 kernel/smp.c:649
 on_each_cpu_cond_mask+0xf7/0x150 kernel/smp.c:697
 on_each_cpu_cond+0x44/0x60 kernel/smp.c:721
 invalidate_bh_lrus+0x32/0x40 fs/buffer.c:1436
 invalidate_bdev+0x69/0x90 fs/block_dev.c:96
 __invalidate_device+0x61/0x80 fs/block_dev.c:2233
 invalidate_partition+0x4c/0x70 block/genhd.c:1614
 blk_drop_partitions+0xf6/0x1a0 block/partition-generic.c:455
 bdev_disk_changed+0xdd/0x1a0 fs/block_dev.c:1519
 loop_reread_partitions+0x36/0x70 drivers/block/loop.c:644
 loop_set_status+0xa02/0xb30 drivers/block/loop.c:1356
 loop_set_status64+0x6d/0xb0 drivers/block/loop.c:1476
 lo_ioctl+0x30b/0xc80 drivers/block/loop.c:1619
 __blkdev_driver_ioctl block/ioctl.c:277 [inline]
 blkdev_ioctl+0xbe5/0x1260 block/ioctl.c:582
 block_ioctl+0x95/0xc0 fs/block_dev.c:1983
 vfs_ioctl fs/ioctl.c:47 [inline]
 file_ioctl fs/ioctl.c:545 [inline]
 do_vfs_ioctl+0x84f/0xcf0 fs/ioctl.c:732
 ksys_ioctl+0xbd/0xe0 fs/ioctl.c:749
 __do_sys_ioctl fs/ioctl.c:756 [inline]
 __se_sys_ioctl fs/ioctl.c:754 [inline]
 __x64_sys_ioctl+0x4c/0x60 fs/ioctl.c:754
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 21963 Comm: syz-executor.1 Not tainted 5.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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