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netfilter: x_tables: pass xt_counters struct instead of packet counter

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On SMP we overload the packet counter (unsigned long) to contain
percpu offset.  Hide this from callers and pass xt_counters address
instead.

Preparation patch to allocate the percpu counters in page-sized batch
chunks.

Signed-off-by: Florian Westphal <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
This commit is contained in:
Florian Westphal 2016-11-22 14:44:17 +01:00 • committed by Pablo Neira Ayuso
commit 4d31eef517
5 changed files with 16 additions and 12 deletions
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4
net/ipv4/netfilter/arp_tables.c
View file

@ -439,7 +439,7 @@ find_check_entry(struct arpt_entry *e, const char *name, unsigned int size)
err:
module_put(t->u.kernel.target->me);
out:
xt_percpu_counter_free(e->counters.pcnt);
xt_percpu_counter_free(&e->counters);
return ret;
}
@ -519,7 +519,7 @@ static inline void cleanup_entry(struct arpt_entry *e)
if (par.target->destroy != NULL)
par.target->destroy(&par);
module_put(par.target->me);
xt_percpu_counter_free(e->counters.pcnt);
xt_percpu_counter_free(&e->counters);
}
/* Checks and translates the user-supplied table segment (held in

4
net/ipv4/netfilter/ip_tables.c
View file

@ -582,7 +582,7 @@ find_check_entry(struct ipt_entry *e, struct net *net, const char *name,
cleanup_match(ematch, net);
}
xt_percpu_counter_free(e->counters.pcnt);
xt_percpu_counter_free(&e->counters);
return ret;
}
@ -670,7 +670,7 @@ cleanup_entry(struct ipt_entry *e, struct net *net)
if (par.target->destroy != NULL)
par.target->destroy(&par);
module_put(par.target->me);
xt_percpu_counter_free(e->counters.pcnt);
xt_percpu_counter_free(&e->counters);
}
/* Checks and translates the user-supplied table segment (held in