Do not call all link state callbacks directly, but schedule

a taskqueue(9) task. This fixes LORs and adds possibility
to serve such events pseudorecursively, when link state
change of interface causes subsequent change on other
interfaces.

Sponsored by:	Rambler
Reviewed by:	sam, brooks, mux

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/net/if_var.h b/sys/net/if_var.h
index 78eea2c..a1ff0fb 100644
--- a/sys/net/if_var.h
+++ b/sys/net/if_var.h
@@ -194,6 +194,7 @@ struct ifnet {
 	int	if_afdata_initialized;
 	struct	mtx if_afdata_mtx;
 	struct	task if_starttask;	/* task for IFF_NEEDSGIANT */
+	struct	task if_linktask;	/* task for link change events */
 };
 
 typedef void if_init_f_t(void *);