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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2009-12-03 19:06:13 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-03 19:06:13 -0500 |
| commit | 49d09007879ce7bee36ab453c73e97c00adce884 (patch) | |
| tree | 6b6a28e0fd8befd4bad5fb1474ce4e0dea9ed6dd /include/linux/compiler-gcc.h | |
| parent | 3320eae51d6e4c65b4733bf4d87de3b833973a1f (diff) | |
tcp: diag: Dont report negative values for rx queue
Both netlink and /proc/net/tcp interfaces can report transient
negative values for rx queue.
ss ->
State Recv-Q Send-Q Local Address:Port Peer Address:Port
ESTAB -6 6 127.0.0.1:45956 127.0.0.1:3333
netstat ->
tcp 4294967290 6 127.0.0.1:37784 127.0.0.1:3333 ESTABLISHED
This is because we dont lock socket while computing
tp->rcv_nxt - tp->copied_seq,
and another CPU can update copied_seq before rcv_next in RX path.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/compiler-gcc.h')
0 files changed, 0 insertions, 0 deletions