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BUG: KCSAN: data-race in inc_node_page_state / release_pages

write to 0xffffea00044eb540 of 8 bytes by task 17641 on cpu 0:
 instrument_write include/linux/instrumented.h:42 [inline]
 __clear_bit include/asm-generic/bitops/instrumented-non-atomic.h:42 [inline]
 __ClearPageLRU include/linux/page-flags.h:328 [inline]
 release_pages+0x3b3/0x8c0 mm/swap.c:897
 __pagevec_release+0x96/0xc0 mm/swap.c:931
 pagevec_release include/linux/pagevec.h:88 [inline]
 invalidate_mapping_pages+0x696/0x6f0 mm/truncate.c:620
 __generic_file_write_iter+0x2e1/0x330 mm/filemap.c:3507
 generic_file_write_iter+0x2f3/0x3e0 mm/filemap.c:3549
 call_write_iter include/linux/fs.h:1868 [inline]
 new_sync_write fs/read_write.c:503 [inline]
 vfs_write+0x665/0x6f0 fs/read_write.c:578
 ksys_write+0xce/0x180 fs/read_write.c:631
 __do_sys_write fs/read_write.c:643 [inline]
 __se_sys_write fs/read_write.c:640 [inline]
 __x64_sys_write+0x3e/0x50 fs/read_write.c:640
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffffea00044eb540 of 8 bytes by interrupt on cpu 1:
 page_to_nid include/linux/mm.h:1276 [inline]
 page_pgdat include/linux/mm.h:1423 [inline]
 inc_node_page_state+0xe/0xb0 mm/vmstat.c:589
 test_clear_page_writeback+0x408/0x480 mm/page-writeback.c:2768
 end_page_writeback+0xa7/0x110 mm/filemap.c:1368
 page_endio+0x1aa/0x1e0 mm/filemap.c:1399
 mpage_end_io+0x186/0x1d0 fs/mpage.c:54
 bio_endio+0x28a/0x370 block/bio.c:1447
 req_bio_endio block/blk-core.c:259 [inline]
 blk_update_request+0x535/0xbd0 block/blk-core.c:1576
 blk_mq_end_request+0x22/0x50 block/blk-mq.c:562
 lo_complete_rq+0xca/0x180 drivers/block/loop.c:500
 blk_done_softirq+0x1a5/0x200 block/blk-mq.c:586
 __do_softirq+0x198/0x360 kernel/softirq.c:298
 run_ksoftirqd+0x2f/0x60 kernel/softirq.c:652
 smpboot_thread_fn+0x347/0x530 kernel/smpboot.c:165
 kthread+0x20d/0x230 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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