ipv4: If fib metrics are default, no need to grab ref to FIB info.



The fib metric memory in this case is static in the kernel image,
so we don't need to reference count it since it's never going
to go away on us.

Signed-off-by: David S. Miller <davem@davemloft.net>

parent 725d1e1b

net/ipv4/route.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -1861,8 +1861,10 @@ static void rt_init_metrics(struct rtable rt, struct fib_info fi)
		{
		if (!(rt->fl.flags & FLOWI_FLAG_PRECOW_METRICS)) {
		no_cow:
		if (fi->fib_metrics != (u32 *) dst_default_metrics) {
		rt->fi = fi;
		atomic_inc(&fi->fib_clntref);
		}
		dst_init_metrics(&rt->dst, fi->fib_metrics, true);
		} else {
		struct inet_peer *peer;