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BUG: KCSAN: data-race in try_to_unmap_one / try_to_unmap_one

write to 0xffff88814426f570 of 8 bytes by task 17579 on cpu 0:
 update_hiwater_rss include/linux/mm.h:2623 [inline]
 try_to_unmap_one+0x835/0x1680 mm/rmap.c:1672
 rmap_walk_anon+0x285/0x410 mm/rmap.c:2485
 try_to_unmap+0xe9/0x110
 shrink_folio_list+0xd16/0x2540 mm/vmscan.c:1252
 shrink_inactive_list mm/vmscan.c:1913 [inline]
 shrink_list mm/vmscan.c:2154 [inline]
 shrink_lruvec+0xd80/0x17a0 mm/vmscan.c:5626
 shrink_node_memcgs mm/vmscan.c:5812 [inline]
 shrink_node+0xab3/0x15c0 mm/vmscan.c:5847
 shrink_zones mm/vmscan.c:6086 [inline]
 do_try_to_free_pages+0x43d/0xce0 mm/vmscan.c:6148
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:6463
 try_charge_memcg+0x280/0xd30 mm/memcontrol.c:2742
 try_charge mm/memcontrol.c:2884 [inline]
 charge_memcg mm/memcontrol.c:7210 [inline]
 __mem_cgroup_charge+0x63/0xf0 mm/memcontrol.c:7225
 mem_cgroup_charge include/linux/memcontrol.h:684 [inline]
 __filemap_add_folio+0x135/0x730 mm/filemap.c:854
 filemap_add_folio+0x70/0x160 mm/filemap.c:937
 __filemap_get_folio+0x2f1/0x5a0 mm/filemap.c:1926
 ext4_da_write_begin+0x2eb/0x550 fs/ext4/inode.c:2891
 generic_perform_write+0x1c9/0x410 mm/filemap.c:3918
 ext4_buffered_write_iter+0x1f6/0x370 fs/ext4/file.c:299
 ext4_file_write_iter+0x297/0xe10
 call_write_iter include/linux/fs.h:2020 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x48a/0x790 fs/read_write.c:584
 ksys_write+0xeb/0x1a0 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x42/0x50 fs/read_write.c:646
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff88814426f570 of 8 bytes by task 17578 on cpu 1:
 update_hiwater_rss include/linux/mm.h:2622 [inline]
 try_to_unmap_one+0x814/0x1680 mm/rmap.c:1672
 rmap_walk_anon+0x285/0x410 mm/rmap.c:2485
 try_to_unmap+0xe9/0x110
 shrink_folio_list+0xd16/0x2540 mm/vmscan.c:1252
 shrink_inactive_list mm/vmscan.c:1913 [inline]
 shrink_list mm/vmscan.c:2154 [inline]
 shrink_lruvec+0xd80/0x17a0 mm/vmscan.c:5626
 shrink_node_memcgs mm/vmscan.c:5812 [inline]
 shrink_node+0xab3/0x15c0 mm/vmscan.c:5847
 shrink_zones mm/vmscan.c:6086 [inline]
 do_try_to_free_pages+0x43d/0xce0 mm/vmscan.c:6148
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:6463
 try_charge_memcg+0x280/0xd30 mm/memcontrol.c:2742
 try_charge mm/memcontrol.c:2884 [inline]
 charge_memcg mm/memcontrol.c:7210 [inline]
 __mem_cgroup_charge+0x63/0xf0 mm/memcontrol.c:7225
 mem_cgroup_charge include/linux/memcontrol.h:684 [inline]
 shmem_alloc_and_add_folio mm/shmem.c:1662 [inline]
 shmem_get_folio_gfp+0x44e/0xb40 mm/shmem.c:2037
 shmem_get_folio mm/shmem.c:2119 [inline]
 shmem_write_begin+0xa0/0x1b0 mm/shmem.c:2702
 generic_perform_write+0x1c9/0x410 mm/filemap.c:3918
 shmem_file_write_iter+0xc8/0xe0 mm/shmem.c:2878
 call_write_iter include/linux/fs.h:2020 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x48a/0x790 fs/read_write.c:584
 ksys_write+0xeb/0x1a0 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x42/0x50 fs/read_write.c:646
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000000000000860 -> 0x0000000000000880

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 17578 Comm: syz-executor.1 Not tainted 6.7.0-rc5-syzkaller-00125-gc7402612e2e6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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