chmod() receives ESTALE against a file that is recreated from NFS server and referred from NFS client in a second

Issue

• chmod() receives ESTALE against a file that is recreated from NFS server and referred from NFS client in a second

• chfile.c

  #include <stdio.h>
  #include <sys/types.h>
  #include <sys/stat.h>
  #include <errno.h>
  
  int main()
  {
       if (chmod("/mnt/nfs/file", 0444) != 0)
       {
            printf("chmod fail with erro %d\n", errno);
            return 1;
       }
       return 0;
  }
  

• reproducer

  # df -T /nfsv3 | grep ext3
  # gcc -o chfile chfile.c
  # mount 127.0.0.1:/nfsv3 /mnt/nfs
  # for i in `seq 1 3`; do touch /nfsv3/file; touch -mt 201003010000.00 /nfsv3; ./chfile; rm -f /nfsv3/file; done
  chmod fail with erro 116
  chmod fail with erro 116