Description of problem:

6.6.88环境执行tmpfs.bug-link-o-tmpfile用例失败

Version-Release number of selected component (if applicable):
# uname -r
6.6.88-cbp.git.927d8482c.an23.x86_64

# cat /etc/os-release 
NAME="Anolis OS"
VERSION="23"
ID="anolis"
VERSION_ID="23"
PLATFORM_ID="platform:an23"
PRETTY_NAME="Anolis OS 23"
ANSI_COLOR="0;31"
HOME_URL="https://openanolis.cn/"
BUG_REPORT_URL="https://bugzilla.openanolis.cn/"

How reproducible:

# cd tmpfs/
# ./bug-link-o-tmpfile
error: open 2, errno 28

# df -h | grep tmpfs
devtmpfs        4.0M     0  4.0M   0% /dev
tmpfs           7.6G  4.0K  7.6G   1% /dev/shm
tmpfs           3.1G  672K  3.1G   1% /run
tmpfs           7.6G   96M  7.5G   2% /tmp
tmpfs           1.6G     0  1.6G   0% /run/user/0

# df -i | grep tmpfs
devtmpfs        1974988    838  1974150    1% /dev
tmpfs           1979573      4  1979569    1% /dev/shm
tmpfs            819200   1631   817569    1% /run
tmpfs           1048576   2850  1045726    1% /tmp
tmpfs            395914     23   395891    1% /run/user/0

Actual results:
fail

Expected results:
pass 

Additional info:
# free -m 
               total        used        free      shared  buff/cache   available
Mem:           15610        1052       13185          97        1372       14130
Swap:              0           0           0

# lscpu
Architecture:             x86_64
  CPU op-mode(s):         32-bit, 64-bit
  Address sizes:          46 bits physical, 57 bits virtual
  Byte Order:             Little Endian
CPU(s):                   4
  On-line CPU(s) list:    0-3
Vendor ID:                GenuineIntel
  BIOS Vendor ID:         Alibaba Cloud
  Model name:             Intel(R) Xeon(R) Platinum 8369B CPU @ 2.70GHz
    BIOS Model name:      pc-i440fx-2.1  CPU @ 0.0GHz
    BIOS CPU family:      1
    CPU family:           6
    Model:                106
    Thread(s) per core:   2
    Core(s) per socket:   2
    Socket(s):            1
    Stepping:             6
    BogoMIPS:             5399.99
    Flags:                fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp l
                          m constant_tsc rep_good nopl nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2
                          apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault ibrs_enhanced fsgsbase tsc_adjust bmi1
                           avx2 smep bmi2 erms invpcid avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt
                           xsavec xgetbv1 xsaves wbnoinvd arat avx512vbmi pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcn
                          tdq rdpid fsrm arch_capabilities
Virtualization features:  
  Hypervisor vendor:      KVM
  Virtualization type:    full
Caches (sum of all):      
  L1d:                    96 KiB (2 instances)
  L1i:                    64 KiB (2 instances)
  L2:                     2.5 MiB (2 instances)
  L3:                     48 MiB (1 instance)
NUMA:                     
  NUMA node(s):           1
  NUMA node0 CPU(s):      0-3
Vulnerabilities:          
  Gather data sampling:   Unknown: Dependent on hypervisor status
  Itlb multihit:          Not affected
  L1tf:                   Not affected
  Mds:                    Not affected
  Meltdown:               Not affected
  Mmio stale data:        Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state unknown
  Reg file data sampling: Not affected
  Retbleed:               Not affected
  Spec rstack overflow:   Not affected
  Spec store bypass:      Vulnerable
  Spectre v1:             Mitigation; usercopy/swapgs barriers and __user pointer sanitization
  Spectre v2:             Mitigation; Enhanced / Automatic IBRS; RSB filling; PBRSB-eIBRS SW sequence; BHI SW loop, KVM SW loop
  Srbds:                  Not affected
  Tsx async abort:        Not affected