src/sys/netinet/ip_input.c - diff

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version 1.284, 2009/09/16 15:23:05

version 1.284.2.1, 2010/04/30 14:44:21

Line 231 u_long in_multihash; /* size of hash

int in_multientries; /* total number of addrs */

struct in_multihashhead *in_multihashtbl;

struct ifqueue ipintrq;

uint16_t ip_id;

percpu_t *ipstat_percpu;

Line 474 ipintr(void)

Line 475 ipintr(void)

{

int s;

struct mbuf *m;

struct ifqueue lcl_intrq;

memset(&lcl_intrq, 0, sizeof(lcl_intrq));

ipintrq.ifq_maxlen = ipqmaxlen;

mutex_enter(softnet_lock);

KERNEL_LOCK(1, NULL);

while (!IF_IS_EMPTY(&ipintrq)) {

if (!IF_IS_EMPTY(&ipintrq)) {

s = splnet();

IF_DEQUEUE(&ipintrq, m);

/* Take existing queue onto stack */

lcl_intrq = ipintrq;

/* Zero out global queue, preserving maxlen and drops */

ipintrq.ifq_head = NULL;

ipintrq.ifq_tail = NULL;

ipintrq.ifq_len = 0;

ipintrq.ifq_maxlen = lcl_intrq.ifq_maxlen;

ipintrq.ifq_drops = lcl_intrq.ifq_drops;

splx(s);

}

KERNEL_UNLOCK_ONE(NULL);

while (!IF_IS_EMPTY(&lcl_intrq)) {

IF_DEQUEUE(&lcl_intrq, m);

if (m == NULL)

break;

ip_input(m);

}

KERNEL_UNLOCK_ONE(NULL);

mutex_exit(softnet_lock);

}