diff options
| author | David S. Miller <davem@davemloft.net> | 2010-09-09 22:27:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-09 22:27:33 -0700 |
| commit | e548833df83c3554229eff0672900bfe958b45fd (patch) | |
| tree | 85efc4a76dc356593d6d394776aeb845dc580fb6 /include/net/tcp.h | |
| parent | cbd9da7be869f676afc204e1a664163778c770bd (diff) | |
| parent | 053d8f6622701f849fda2ca2c9ae596c13599ba9 (diff) | |
| download | linux-3.10-e548833df83c3554229eff0672900bfe958b45fd.tar.gz linux-3.10-e548833df83c3554229eff0672900bfe958b45fd.tar.bz2 linux-3.10-e548833df83c3554229eff0672900bfe958b45fd.zip | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
net/mac80211/main.c
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 11dbacc886c..bfc1da43295 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -268,11 +268,21 @@ static inline int between(__u32 seq1, __u32 seq2, __u32 seq3) return seq3 - seq2 >= seq1 - seq2; } -static inline int tcp_too_many_orphans(struct sock *sk, int num) +static inline bool tcp_too_many_orphans(struct sock *sk, int shift) { - return (num > sysctl_tcp_max_orphans) || - (sk->sk_wmem_queued > SOCK_MIN_SNDBUF && - atomic_read(&tcp_memory_allocated) > sysctl_tcp_mem[2]); + struct percpu_counter *ocp = sk->sk_prot->orphan_count; + int orphans = percpu_counter_read_positive(ocp); + + if (orphans << shift > sysctl_tcp_max_orphans) { + orphans = percpu_counter_sum_positive(ocp); + if (orphans << shift > sysctl_tcp_max_orphans) + return true; + } + + if (sk->sk_wmem_queued > SOCK_MIN_SNDBUF && + atomic_read(&tcp_memory_allocated) > sysctl_tcp_mem[2]) + return true; + return false; } /* syncookies: remember time of last synqueue overflow */ |