From: David Ahern <d...@cumulusnetworks.com> Date: Sat, 7 Jan 2017 20:04:23 -0800
> 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> Agreed, this shouldn't be necessary. The key with input route lookups is that the skb->dst reference cannot escape the packet receive path, unless we force the dst, which ip_route_input() does under RCU protection. So this should all be ok. Applied, thanks.
