file_f_owner
fown = file_f_owner(fa->fa_file);
f_owner = file_f_owner(file);
f_owner = file_f_owner(filp);
f_owner = file_f_owner(filp);
f_owner = file_f_owner(filp);
f_owner = file_f_owner(filp);
f_owner = file_f_owner(filp);
fown = file_f_owner(file);
f_owner = file_f_owner(file);
file_f_owner(filp)->signum = 0;
fown = file_f_owner(dn->dn_filp);
if (control_current_fowner(file_f_owner(file))) {