Limit the maximum resolve depth to prevent infinite loops

[zhijian-pro]

test script

#!/bin/bash
set -e
rm -rf d
mkdir -p d
cd d
touch f
ln -s f symlink_1
for i in {1..50}; do
  ln -s symlink_$i symlink_$((i+1))
  ls symlink_$((i+1))
  cat symlink_$((i+1))
done```
ext4

symlink_2
symlink_3
symlink_4
symlink_5
symlink_6
symlink_7
symlink_8
symlink_9
symlink_10
symlink_11
symlink_12
symlink_13
symlink_14
symlink_15
symlink_16
symlink_17
symlink_18
symlink_19
symlink_20
symlink_21
symlink_22
symlink_23
symlink_24
symlink_25
symlink_26
symlink_27
symlink_28
symlink_29
symlink_30
symlink_31
symlink_32
symlink_33
symlink_34
symlink_35
symlink_36
symlink_37
symlink_38
symlink_39
symlink_40
ls: cannot access symlink_41: Too many levels of symbolic links

close #3894