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netmap: use FreeBSD guards for epoch calls

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EPOCH calls are FreeBSD specific. Use guards to protect these, so
that the code can compile under Linux.

MFC after:	1 week
This commit is contained in:
Vincenzo Maffione 2020-08-24 20:28:21 +00:00
parent 592d300e34
commit b7d6913862
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=364731
1 changed files with 5 additions and 1 deletions
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6
sys/dev/netmap/netmap.c
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@ -1149,11 +1149,13 @@ netmap_dtor(void *data)
static void
netmap_send_up(struct ifnet *dst, struct mbq *q)
{
struct epoch_tracker et;
struct mbuf *m;
struct mbuf *head = NULL, *prev = NULL;
#ifdef __FreeBSD__
struct epoch_tracker et;
NET_EPOCH_ENTER(et);
#endif /* __FreeBSD__ */
/* Send packets up, outside the lock; head/prev machinery
* is only useful for Windows. */
while ((m = mbq_dequeue(q)) != NULL) {
@ -1165,7 +1167,9 @@ netmap_send_up(struct ifnet *dst, struct mbq *q)
}
if (head)
nm_os_send_up(dst, NULL, head);
#ifdef __FreeBSD__
NET_EPOCH_EXIT(et);
#endif /* __FreeBSD__ */
mbq_fini(q);
}