cifs_get_writable_file
ret = cifs_get_writable_file(CIFS_I(wreq->inode), FIND_ANY, &req->cfile);
rc = cifs_get_writable_file(cifs_inode, flags, &cfile);
return cifs_get_writable_file(cinode, flags, ret_file);
rc = cifs_get_writable_file(CIFS_I(inode), FIND_ANY, &cfile);