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Try to avoid a 2nd conditional by re-writing the loop, pause, and

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escape clause another time.

Submitted by:	jhb
Approved by:	re (gjb)
MFC after:	12 days
This commit is contained in:
Bjoern A. Zeeb 2016-06-23 21:32:52 +00:00
parent 678243ffda
commit 42644eb88e
1 changed files with 5 additions and 4 deletions
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9
sys/netinet/tcp_subr.c
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@ -738,13 +738,14 @@ tcp_destroy(void *unused __unused)
* up, which means, we should be past the tcp_discardcb() calls.
* Sleep to let all tcpcb timers really disappear and cleanup.
*/
do {
for (;;) {
INP_LIST_RLOCK(&V_tcbinfo);
n = V_tcbinfo.ipi_count;
INP_LIST_RUNLOCK(&V_tcbinfo);
if (n != 0)
pause("tcpdes", hz / 10);
} while (n != 0);
if (n == 0)
break;
pause("tcpdes", hz / 10);
}
tcp_hc_destroy();
syncache_destroy();
tcp_tw_destroy();