VFS: create/append log file

[troutb at abclabs.com]

I've trying to create a log file in a VFS module without using syslog.

I want to pass in a logfile name via options.

But,  when I put the following in the vfs_init section.

  FILE *log;
  log = open( path, "a+" );
  fprintf( log, "Logging actions for ...' );


it hangs ... on the fprintf and I get an empty file.

I am not a good  C program ...
is this the right calls and procedure for making a log file in a VFS module?