==================================================================
BUG: KCSAN: data-race in lruvec_lru_size / mem_cgroup_update_lru_size

write to 0xffff88812bd0ba08 of 8 bytes by task 1932 on cpu 1:
 mem_cgroup_update_lru_size+0x97/0x110 mm/memcontrol.c:1282
 update_lru_size include/linux/mm_inline.h:44 [inline]
 del_page_from_lru_list include/linux/mm_inline.h:66 [inline]
 isolate_lru_page+0x43a/0x620 mm/vmscan.c:1763
 __collapse_huge_page_isolate+0x611/0xcb0 mm/khugepaged.c:609
 collapse_huge_page+0x7da/0x14f0 mm/khugepaged.c:1047
 khugepaged_scan_pmd mm/khugepaged.c:1251 [inline]
 khugepaged_scan_mm_slot mm/khugepaged.c:2019 [inline]
 khugepaged_do_scan mm/khugepaged.c:2100 [inline]
 khugepaged+0x2760/0x2850 mm/khugepaged.c:2145
 kthread+0x203/0x230 kernel/kthread.c:268
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352

read to 0xffff88812bd0ba08 of 8 bytes by task 2676 on cpu 0:
 mem_cgroup_get_zone_lru_size include/linux/memcontrol.h:536 [inline]
 lruvec_lru_size+0xe8/0x1b0 mm/vmscan.c:326
 get_scan_count mm/vmscan.c:2348 [inline]
 shrink_lruvec+0x170/0xd80 mm/vmscan.c:2452
 shrink_node_memcgs mm/vmscan.c:2671 [inline]
 shrink_node+0x30d/0x1000 mm/vmscan.c:2777
 kswapd_shrink_node mm/vmscan.c:3523 [inline]
 balance_pgdat+0x658/0xd20 mm/vmscan.c:3681
 kswapd+0x3f3/0x8c0 mm/vmscan.c:3935
 kthread+0x203/0x230 kernel/kthread.c:268
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 2676 Comm: kswapd0 Not tainted 5.7.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================