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in6: Enter the net epoch in in6_tmpaddrtimer()

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We need to do so to safely traverse the ifnet list.

Reviewed by:	bz
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D31470
This commit is contained in:
Mark Johnston 2021-08-09 13:14:23 -04:00
parent eca9ac5a32
commit 8ee0826f75
1 changed files with 3 additions and 1 deletions
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4
sys/netinet6/in6_ifattach.c
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@ -828,6 +828,7 @@ void
in6_tmpaddrtimer(void *arg)
{
CURVNET_SET((struct vnet *) arg);
struct epoch_tracker et;
struct nd_ifinfo *ndi;
u_int8_t nullbuf[8];
struct ifnet *ifp;
@ -837,6 +838,7 @@ in6_tmpaddrtimer(void *arg)
V_ip6_temp_regen_advance) * hz, in6_tmpaddrtimer, curvnet);
bzero(nullbuf, sizeof(nullbuf));
NET_EPOCH_ENTER(et);
CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {
if (ifp->if_afdata[AF_INET6] == NULL)
continue;
@ -850,7 +852,7 @@ in6_tmpaddrtimer(void *arg)
ndi->randomseed1, ndi->randomid);
}
}
NET_EPOCH_EXIT(et);
CURVNET_RESTORE();
}