Commit bfd8e5a4 authored Oct 09, 2017 by Eric Dumazet Committed by David S. Miller Oct 09, 2017

ipv6: avoid zeroing per cpu data again

per cpu allocations are already zeroed, no need to clear them again.

Fixes: d52d3997 ("ipv6: Create percpu rt6_info")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 410a619a

net/ipv6/route.c

+1 −11

Original line number	Diff line number	Diff line
		@@ -377,17 +377,7 @@ struct rt6_info ip6_dst_alloc(struct net net,

		if (rt) {
		rt->rt6i_pcpu = alloc_percpu_gfp(struct rt6_info *, GFP_ATOMIC);
		if (rt->rt6i_pcpu) {
		int cpu;

		for_each_possible_cpu(cpu) {
		struct rt6_info **p;

		p = per_cpu_ptr(rt->rt6i_pcpu, cpu);
		/* no one shares rt */
		*p = NULL;
		}
		} else {
		if (!rt->rt6i_pcpu) {
		dst_release_immediate(&rt->dst);
		return NULL;
		}