cifs: allow cifs_max_pending to be readable under /sys/module/cifs/parameters

MODULE_PARM_DESC(cifs_min_small, "Small network buffers in pool. Default: 30 "

MODULE_PARM_DESC(cifs_min_small, "Small network buffers in pool. Default: 30 "

				 "Range: 2 to 256");

				 "Range: 2 to 256");

unsigned int cifs_max_pending = CIFS_MAX_REQ;

unsigned int cifs_max_pending = CIFS_MAX_REQ;

module_param(cifs_max_pending, int, 0);

module_param(cifs_max_pending, int, 0444);

MODULE_PARM_DESC(cifs_max_pending, "Simultaneous requests to server. "

MODULE_PARM_DESC(cifs_max_pending, "Simultaneous requests to server. "

				   "Default: 50 Range: 2 to 256");

				   "Default: 50 Range: 2 to 256");

unsigned short echo_retries = 5;

unsigned short echo_retries = 5;