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BUG: KCSAN: data-race in inc_node_page_state / release_pages

write to 0xffffea00042b2e80 of 8 bytes by task 7828 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+0x402/0x8f0 mm/swap.c:899
 __pagevec_release+0x96/0xc0 mm/swap.c:933
 pagevec_release include/linux/pagevec.h:88 [inline]
 invalidate_inode_pages2_range+0x69f/0x780 mm/truncate.c:752
 iomap_dio_rw+0x503/0x980 fs/iomap/direct-io.c:488
 ext4_dio_write_iter fs/ext4/file.c:548 [inline]
 ext4_file_write_iter+0xdd5/0x1060 fs/ext4/file.c:658
 call_write_iter include/linux/fs.h:1882 [inline]
 do_iter_readv_writev+0x32e/0x3d0 fs/read_write.c:713
 do_iter_write+0x112/0x4b0 fs/read_write.c:1018
 vfs_writev fs/read_write.c:1091 [inline]
 do_pwritev+0x1a4/0x2e0 fs/read_write.c:1188
 __do_sys_pwritev fs/read_write.c:1235 [inline]
 __se_sys_pwritev fs/read_write.c:1230 [inline]
 __x64_sys_pwritev+0x54/0x60 fs/read_write.c:1230
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffffea00042b2e80 of 8 bytes by task 20338 on cpu 1:
 page_to_nid include/linux/mm.h:1287 [inline]
 page_pgdat include/linux/mm.h:1434 [inline]
 inc_node_page_state+0xe/0xc0 mm/vmstat.c:603
 test_clear_page_writeback+0x408/0x480 mm/page-writeback.c:2766
 end_page_writeback+0xa7/0x110 mm/filemap.c:1369
 ext4_finish_bio+0x429/0x490 fs/ext4/page-io.c:146
 ext4_release_io_end+0x98/0x200 fs/ext4/page-io.c:161
 ext4_end_io_end fs/ext4/page-io.c:195 [inline]
 ext4_do_flush_completed_IO fs/ext4/page-io.c:260 [inline]
 ext4_end_io_rsv_work+0x306/0x360 fs/ext4/page-io.c:274
 process_one_work+0x3e1/0x9a0 kernel/workqueue.c:2269
 worker_thread+0x665/0xbe0 kernel/workqueue.c:2415
 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: 20338 Comm: kworker/u4:5 Not tainted 5.9.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work
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