| commit | 6b10de38f0ef4e921a1f6e5cba2b6c92d6b46ecd | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <eric.dumazet@gmail.com> | Mon Jun 14 05:59:22 2010 +0000 |
| committer | David S. Miller <davem@davemloft.net> | Mon Jun 14 23:13:07 2010 -0700 |
| tree | 76e914c5097cb80cf65bf9ce1e48acff8e46795c | |
| parent | c68f24cc354050415c5ea543cd19ea5424463a2f [diff] |
loopback: Implement 64bit stats on 32bit arches Uses a seqcount_t to synchronize stat producer and consumer, for packets and bytes counter, now u64 types. (dropped counter being rarely used, stay a native "unsigned long" type) No noticeable performance impact on x86, as it only adds two increments per frame. It might be more expensive on arches where smp_wmb() is not free. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>