Commit b6690b14 authored by Florian Westphal's avatar Florian Westphal Committed by David S. Miller

tcp: remove low_latency sysctl

Was only checked by the removed prequeue code.
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c13ee2a4
...@@ -353,12 +353,7 @@ tcp_l3mdev_accept - BOOLEAN ...@@ -353,12 +353,7 @@ tcp_l3mdev_accept - BOOLEAN
compiled with CONFIG_NET_L3_MASTER_DEV. compiled with CONFIG_NET_L3_MASTER_DEV.
tcp_low_latency - BOOLEAN tcp_low_latency - BOOLEAN
If set, the TCP stack makes decisions that prefer lower This is a legacy option, it has no effect anymore.
latency as opposed to higher throughput. By default, this
option is not set meaning that higher throughput is preferred.
An example of an application where this default should be
changed would be a Beowulf compute cluster.
Default: 0
tcp_max_orphans - INTEGER tcp_max_orphans - INTEGER
Maximal number of TCP sockets not attached to any user file handle, Maximal number of TCP sockets not attached to any user file handle,
......
...@@ -256,7 +256,6 @@ extern int sysctl_tcp_rmem[3]; ...@@ -256,7 +256,6 @@ extern int sysctl_tcp_rmem[3];
extern int sysctl_tcp_app_win; extern int sysctl_tcp_app_win;
extern int sysctl_tcp_adv_win_scale; extern int sysctl_tcp_adv_win_scale;
extern int sysctl_tcp_frto; extern int sysctl_tcp_frto;
extern int sysctl_tcp_low_latency;
extern int sysctl_tcp_nometrics_save; extern int sysctl_tcp_nometrics_save;
extern int sysctl_tcp_moderate_rcvbuf; extern int sysctl_tcp_moderate_rcvbuf;
extern int sysctl_tcp_tso_win_divisor; extern int sysctl_tcp_tso_win_divisor;
......
...@@ -45,6 +45,9 @@ static int tcp_syn_retries_max = MAX_TCP_SYNCNT; ...@@ -45,6 +45,9 @@ static int tcp_syn_retries_max = MAX_TCP_SYNCNT;
static int ip_ping_group_range_min[] = { 0, 0 }; static int ip_ping_group_range_min[] = { 0, 0 };
static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX }; static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX };
/* obsolete */
static int sysctl_tcp_low_latency __read_mostly;
/* Update system visible IP port range */ /* Update system visible IP port range */
static void set_local_port_range(struct net *net, int range[2]) static void set_local_port_range(struct net *net, int range[2])
{ {
......
...@@ -85,8 +85,6 @@ ...@@ -85,8 +85,6 @@
#include <crypto/hash.h> #include <crypto/hash.h>
#include <linux/scatterlist.h> #include <linux/scatterlist.h>
int sysctl_tcp_low_latency __read_mostly;
#ifdef CONFIG_TCP_MD5SIG #ifdef CONFIG_TCP_MD5SIG
static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key, static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
__be32 daddr, __be32 saddr, const struct tcphdr *th); __be32 daddr, __be32 saddr, const struct tcphdr *th);
......
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