- enable tcp keepalive back

lnet/klnds/socklnd/socklnd.h

@@ -59,12 +59,7 @@
 #define SOCKNAL_BUFFER_SIZE     (8<<20)         /* default socket buffer size */
 #define SOCKNAL_NAGLE            0              /* enable/disable NAGLE? */
 #define SOCKNAL_IRQ_AFFINITY     1              /* enable/disable IRQ affinity? */
-
-/* FIXME: for debugging purpose only, remove asap! -bzzz */
-#if 0
 #define SOCKNAL_KEEPALIVE_IDLE   30             /* # seconds idle before 1st probe */
-#endif
-#define SOCKNAL_KEEPALIVE_IDLE   0             /* # seconds idle before 1st probe */
 
 #define SOCKNAL_KEEPALIVE_COUNT  10             /* # unanswered probes to determine peer death */
 #define SOCKNAL_KEEPALIVE_INTVL  2              /* seconds between probes */