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BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru

write to 0xffff888237c28438 of 8 bytes by task 3080 on cpu 0:
 __invalidate_bh_lrus fs/buffer.c:1381 [inline]
 invalidate_bh_lru+0xad/0x110 fs/buffer.c:1393
 smp_call_function_many_cond+0x4ee/0x650 kernel/smp.c:978
 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1155
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x26/0x30 fs/buffer.c:1412
 invalidate_bdev+0x51/0x80 block/bdev.c:85
 loop_set_block_size drivers/block/loop.c:1494 [inline]
 lo_simple_ioctl drivers/block/loop.c:1522 [inline]
 lo_ioctl+0xb3e/0x1290 drivers/block/loop.c:1587
 blkdev_ioctl+0x20e/0x440 block/ioctl.c:614
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:856
 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888237c28438 of 8 bytes by task 1817 on cpu 1:
 has_bh_in_lru+0x31/0x1c0 fs/buffer.c:1403
 smp_call_function_many_cond+0x2e3/0x650 kernel/smp.c:935
 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1155
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x26/0x30 fs/buffer.c:1412
 invalidate_bdev+0x51/0x80 block/bdev.c:85
 bdev_disk_changed+0xff/0xbf0 block/partitions/core.c:668
 blkdev_get_whole+0x256/0x270 block/bdev.c:685
 blkdev_get_by_dev+0x248/0x650 block/bdev.c:822
 blkdev_open+0xac/0x140 block/fops.c:485
 do_dentry_open+0x59a/0x910 fs/open.c:882
 vfs_open+0x43/0x50 fs/open.c:1013
 do_open fs/namei.c:3557 [inline]
 path_openat+0x169d/0x1b00 fs/namei.c:3713
 do_filp_open+0x105/0x220 fs/namei.c:3740
 do_sys_openat2+0xb5/0x2a0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __x64_sys_openat+0xef/0x110 fs/open.c:1337
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0xffff888105ff2548 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 1817 Comm: syz-executor.5 Tainted: G        W          6.1.0-rc2-syzkaller-00189-g23758867219c-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
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