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

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

Documentation/networking/ip-sysctl.txt

+1 −6
Original line number Diff line number Diff line
@@ -353,12 +353,7 @@ tcp_l3mdev_accept - BOOLEAN 
	compiled with CONFIG_NET_L3_MASTER_DEV.



tcp_low_latency - BOOLEAN

	If set, the TCP stack makes decisions that prefer lower

	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

	This is a legacy option, it has no effect anymore.



tcp_max_orphans - INTEGER

	Maximal number of TCP sockets not attached to any user file handle,

include/net/tcp.h

+0 −1
Original line number Diff line number Diff line
@@ -256,7 +256,6 @@ extern int sysctl_tcp_rmem[3]; 
extern int sysctl_tcp_app_win;

extern int sysctl_tcp_adv_win_scale;

extern int sysctl_tcp_frto;

extern int sysctl_tcp_low_latency;

extern int sysctl_tcp_nometrics_save;

extern int sysctl_tcp_moderate_rcvbuf;

extern int sysctl_tcp_tso_win_divisor;

net/ipv4/sysctl_net_ipv4.c

+3 −0
Original line number Diff line number Diff line
@@ -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_max[] = { GID_T_MAX, GID_T_MAX };



/* obsolete */

static int sysctl_tcp_low_latency __read_mostly;



/* Update system visible IP port range */

static void set_local_port_range(struct net *net, int range[2])

{

net/ipv4/tcp_ipv4.c

+0 −2
Original line number Diff line number Diff line
@@ -85,8 +85,6 @@ 
#include <crypto/hash.h>

#include <linux/scatterlist.h>



int sysctl_tcp_low_latency __read_mostly;



#ifdef CONFIG_TCP_MD5SIG

static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,

			       __be32 daddr, __be32 saddr, const struct tcphdr *th);