diff options
| author | Stephen Hemminger <shemminger@osdl.org> | 2006-11-09 16:32:06 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-12-02 21:21:48 -0800 |
| commit | 3ff825b28d3345ef381eceae22bf9d92231f23dc (patch) | |
| tree | c3ca6ec1888ff912e0434f6621ecb2e46e8826f3 /net/ipv4/tcp_cong.c | |
| parent | b68dbcab1dc70938fa5516d0ee82c0bf94e9a768 (diff) | |
[TCP]: Add tcp_available_congestion_control sysctl.
Create /proc/sys/net/ipv4/tcp_available_congestion_control
that reflects currently available TCP choices.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_cong.c')
| -rw-r--r-- | net/ipv4/tcp_cong.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c index 1e2982f4acd..d846d7b95e1 100644 --- a/net/ipv4/tcp_cong.c +++ b/net/ipv4/tcp_cong.c @@ -139,6 +139,22 @@ static int __init tcp_congestion_default(void) late_initcall(tcp_congestion_default); +/* Build string with list of available congestion control values */ +void tcp_get_available_congestion_control(char *buf, size_t maxlen) +{ + struct tcp_congestion_ops *ca; + size_t offs = 0; + + rcu_read_lock(); + list_for_each_entry_rcu(ca, &tcp_cong_list, list) { + offs += snprintf(buf + offs, maxlen - offs, + "%s%s", + offs == 0 ? "" : " ", ca->name); + + } + rcu_read_unlock(); +} + /* Get current default congestion control */ void tcp_get_default_congestion_control(char *name) { |