Nothing about the route lookup requires bottom half to be disabled. Remove the local_bh_disable ... local_bh_enable around ip_route_input. This appears to be a vestige of days gone by as it has been there since the beginning of git time.
Signed-off-by: David Ahern <d...@cumulusnetworks.com> --- net/ipv4/route.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/net/ipv4/route.c b/net/ipv4/route.c index f51823dc998b..7144288371cf 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2631,9 +2631,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh) skb->protocol = htons(ETH_P_IP); skb->dev = dev; skb->mark = mark; - local_bh_disable(); err = ip_route_input(skb, dst, src, rtm->rtm_tos, dev); - local_bh_enable(); rt = skb_rtable(skb); if (err == 0 && rt->dst.error) -- 2.1.4