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BUG: KCSAN: data-race in list_lru_count_one / list_lru_isolate_move

write to 0xffff8880a9d78690 of 8 bytes by task 20134 on cpu 0:
 list_lru_isolate_move+0x122/0x150 mm/list_lru.c:180
 inode_lru_isolate+0x1ae/0x360 fs/inode.c:785
 __list_lru_walk_one+0x10b/0x390 mm/list_lru.c:232
 list_lru_walk_one+0x78/0xa0 mm/list_lru.c:276
 list_lru_shrink_walk include/linux/list_lru.h:195 [inline]
 prune_icache_sb+0x7e/0xb0 fs/inode.c:803
 super_cache_scan+0x207/0x2c0 fs/super.c:107
 do_shrink_slab+0x2a9/0x5b0 mm/vmscan.c:512
 shrink_slab_memcg mm/vmscan.c:582 [inline]
 shrink_slab+0x477/0x540 mm/vmscan.c:661
 shrink_node_memcgs mm/vmscan.c:2673 [inline]
 shrink_node+0x354/0x1000 mm/vmscan.c:2777
 shrink_zones mm/vmscan.c:2980 [inline]
 do_try_to_free_pages+0x230/0xb30 mm/vmscan.c:3033
 try_to_free_mem_cgroup_pages+0x1f7/0x4b0 mm/vmscan.c:3355
 reclaim_high.constprop.0+0xee/0x140 mm/memcontrol.c:2232
 mem_cgroup_handle_over_high+0x8f/0x180 mm/memcontrol.c:2313
 tracehook_notify_resume include/linux/tracehook.h:197 [inline]
 exit_to_usermode_loop+0x20a/0x2c0 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 syscall_return_slowpath+0x218/0x240 arch/x86/entry/common.c:278
 ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:344

read to 0xffff8880a9d78690 of 8 bytes by task 7811 on cpu 1:
 list_lru_count_one+0xb4/0x120 mm/list_lru.c:193
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0xfa/0x190 fs/super.c:148
 do_shrink_slab+0xb3/0x5b0 mm/vmscan.c:430
 shrink_slab_memcg mm/vmscan.c:582 [inline]
 shrink_slab+0x477/0x540 mm/vmscan.c:661
 shrink_node_memcgs mm/vmscan.c:2673 [inline]
 shrink_node+0x354/0x1000 mm/vmscan.c:2777
 shrink_zones mm/vmscan.c:2980 [inline]
 do_try_to_free_pages+0x230/0xb30 mm/vmscan.c:3033
 try_to_free_mem_cgroup_pages+0x1f7/0x4b0 mm/vmscan.c:3355
 reclaim_high.constprop.0+0xee/0x140 mm/memcontrol.c:2232
 mem_cgroup_handle_over_high+0x8f/0x180 mm/memcontrol.c:2313
 tracehook_notify_resume include/linux/tracehook.h:197 [inline]
 exit_to_usermode_loop+0x20a/0x2c0 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:278 [inline]
 do_syscall_64+0x36e/0x390 arch/x86/entry/common.c:304
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 7811 Comm: syz-executor.3 Not tainted 5.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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