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BUG: KCSAN: data-race in __lru_add_drain_all / folio_add_lru

write to 0xffff888237d226a8 of 1 bytes by task 3929 on cpu 1:
 pagevec_add include/linux/pagevec.h:74 [inline]
 pagevec_add_and_need_flush mm/swap.c:226 [inline]
 folio_add_lru+0x62/0x160 mm/swap.c:458
 lru_cache_add+0x37/0x50 mm/folio-compat.c:108
 lru_cache_add_inactive_or_unevictable+0x46/0x140 mm/swap.c:490
 wp_page_copy+0x8cf/0x11e0 mm/memory.c:3061
 do_wp_page+0x4fb/0xa80
 handle_pte_fault mm/memory.c:4588 [inline]
 __handle_mm_fault mm/memory.c:4705 [inline]
 handle_mm_fault+0x975/0x1590 mm/memory.c:4803
 do_user_addr_fault+0x609/0xbe0 arch/x86/mm/fault.c:1397
 handle_page_fault arch/x86/mm/fault.c:1485 [inline]
 exc_page_fault+0x91/0x290 arch/x86/mm/fault.c:1541
 asm_exc_page_fault+0x1e/0x30

read to 0xffff888237d226a8 of 1 bytes by task 3917 on cpu 0:
 pagevec_count include/linux/pagevec.h:61 [inline]
 __lru_add_drain_all+0x12c/0x3e0 mm/swap.c:825
 lru_add_drain_all+0xc/0x10 mm/swap.c:847
 invalidate_bdev block/bdev.c:88 [inline]
 __invalidate_device+0x98/0xc0 block/bdev.c:1019
 disk_force_media_change+0x112/0x170 block/disk-events.c:310
 __loop_clr_fd+0x527/0x6c0 drivers/block/loop.c:1158
 loop_clr_fd drivers/block/loop.c:1237 [inline]
 lo_ioctl+0x985/0x1270 drivers/block/loop.c:1562
 blkdev_ioctl+0x20e/0x440 block/ioctl.c:597
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:860
 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x05 -> 0x06

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 3917 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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