diff options
| author | Eric Dumazet <edumazet@google.com> | 2017-10-09 06:01:37 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-09 10:29:39 -0700 |
| commit | bfd8e5a407133e58a92a38ccf3d0ba6db81f22d8 (patch) | |
| tree | 346ce561468c4a196859b42728c07b1b9f099d6a /net/ipv6 | |
| parent | 410a619adc1a7032e264d991feecb8d42aca89e4 (diff) | |
ipv6: avoid zeroing per cpu data again
per cpu allocations are already zeroed, no need to clear them again.
Fixes: d52d3997f843f ("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>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/route.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 606e80325b21..3d7d4e09301e 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -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; } |