diff options
| author | Pavel Emelianov <xemul@openvz.org> | 2007-05-29 13:19:18 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-05-31 01:23:34 -0700 |
| commit | e4fd5da39f99d5921dda1fe3d93652fbd925fbfd (patch) | |
| tree | 595967b745720653cdc0f7c9e5d61c5433ea143e | |
| parent | 4e07a91c37c69ec1647c218214591ee4fe3408fe (diff) | |
| download | blackbird-op-linux-e4fd5da39f99d5921dda1fe3d93652fbd925fbfd.tar.gz blackbird-op-linux-e4fd5da39f99d5921dda1fe3d93652fbd925fbfd.zip | |
[TCP]: Consolidate checking for tcp orphan count being too big.
tcp_out_of_resources() and tcp_close() perform the
same checking of number of orphan sockets. Move this
code into common place.
Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/tcp.h | 6 | ||||
| -rw-r--r-- | net/ipv4/tcp.c | 5 | ||||
| -rw-r--r-- | net/ipv4/tcp_timer.c | 4 |
3 files changed, 9 insertions, 6 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index e22b4f0305a3..a8af9ae00177 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -254,6 +254,12 @@ 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) +{ + return (num > sysctl_tcp_max_orphans) || + (sk->sk_wmem_queued > SOCK_MIN_SNDBUF && + atomic_read(&tcp_memory_allocated) > sysctl_tcp_mem[2]); +} extern struct proto tcp_prot; diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index bd4c295f5d79..766314505c09 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1674,9 +1674,8 @@ adjudge_to_death: } if (sk->sk_state != TCP_CLOSE) { sk_stream_mem_reclaim(sk); - if (atomic_read(sk->sk_prot->orphan_count) > sysctl_tcp_max_orphans || - (sk->sk_wmem_queued > SOCK_MIN_SNDBUF && - atomic_read(&tcp_memory_allocated) > sysctl_tcp_mem[2])) { + if (tcp_too_many_orphans(sk, + atomic_read(sk->sk_prot->orphan_count))) { if (net_ratelimit()) printk(KERN_INFO "TCP: too many of orphaned " "sockets\n"); diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 2ca97b20929d..e61340150ba6 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -78,9 +78,7 @@ static int tcp_out_of_resources(struct sock *sk, int do_reset) if (sk->sk_err_soft) orphans <<= 1; - if (orphans >= sysctl_tcp_max_orphans || - (sk->sk_wmem_queued > SOCK_MIN_SNDBUF && - atomic_read(&tcp_memory_allocated) > sysctl_tcp_mem[2])) { + if (tcp_too_many_orphans(sk, orphans)) { if (net_ratelimit()) printk(KERN_INFO "Out of socket memory\n"); |
