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ipv4: make sure nh_pcpu_rth_output is always allocated

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Avoid checking nh_pcpu_rth_output in fast path,
abort fib_info creation on alloc_percpu failure.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Anastasov
2012-10-08 11:41:17 +00:00
committed by David S. Miller
parent e0adef0f74
commit f8a17175c6
2 changed files with 2 additions and 3 deletions
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net/ipv4/fib_semantics.c
+2
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@@ -840,6 +840,8 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
change_nexthops(fi) {
nexthop_nh->nh_parent = fi;
nexthop_nh->nh_pcpu_rth_output = alloc_percpu(struct rtable __rcu *);
if (!nexthop_nh->nh_pcpu_rth_output)
goto failure;
} endfor_nexthops(fi)
if (cfg->fc_mx) {