Differential D6923 Diff 17782 head/sys/netinet/tcp_subr.c

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head/sys/netinet/tcp_subr.c

Show First 20 Lines • Show All 725 Lines • ▼ Show 20 Lines	#ifdef TCP_RFC7413
tcp_fastopen_init();		tcp_fastopen_init();
#endif		#endif
}		}

#ifdef VIMAGE		#ifdef VIMAGE
static void		static void
tcp_destroy(void *unused __unused)		tcp_destroy(void *unused __unused)
{		{
int error;		int error, n;

/*		/*
* All our processes are gone, all our sockets should be cleaned		* All our processes are gone, all our sockets should be cleaned
* up, which means, we should be past the tcp_discardcb() calls.		* up, which means, we should be past the tcp_discardcb() calls.
* Sleep to let all tcpcb timers really disappear and then cleanup.		* Sleep to let all tcpcb timers really disappear and cleanup.
* Timewait will cleanup its queue and will be ready to go.
* XXX-BZ In theory a few ticks should be good enough to make sure
* the timers are all really gone. We should see if we could use a
* better metric here and, e.g., check a tcbcb count as an optimization?
*/		*/
DELAY(1000000 / hz);		do {
		pause("tcpdes", hz/10);
		INP_LIST_RLOCK(&V_tcbinfo);
		n = V_tcbinfo.ipi_count;
		INP_LIST_RUNLOCK(&V_tcbinfo);
		} while (n != 0);
tcp_hc_destroy();		tcp_hc_destroy();
syncache_destroy();		syncache_destroy();
tcp_tw_destroy();		tcp_tw_destroy();
in_pcbinfo_destroy(&V_tcbinfo);		in_pcbinfo_destroy(&V_tcbinfo);
/* tcp_discardcb() clears the sack_holes up. */		/* tcp_discardcb() clears the sack_holes up. */
uma_zdestroy(V_sack_hole_zone);		uma_zdestroy(V_sack_hole_zone);
uma_zdestroy(V_tcpcb_zone);		uma_zdestroy(V_tcpcb_zone);

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