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netfilter: nf_conntrack: use atomic64 for accounting counters

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We can use atomic64_t infrastructure to avoid taking a spinlock in fast
path, and remove inaccuracies while reading values in
ctnetlink_dump_counters() and connbytes_mt() on 32bit arches.

Suggested by Pablo.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Eric Dumazet
2011-12-14 14:45:20 +01:00
committed by Pablo Neira Ayuso
parent 76ad94fc5d
commit b3e0bfa71b
5 changed files with 33 additions and 33 deletions
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4
include/net/netfilter/nf_conntrack_acct.h
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@ -15,8 +15,8 @@
#include <net/netfilter/nf_conntrack_extend.h>
struct nf_conn_counter {
u_int64_t packets;
u_int64_t bytes;
atomic64_t packets;
atomic64_t bytes;
};
static inline