adulau/aha
1
0
Fork 0
mirror of https://github.com/adulau/aha.git synced 2024-12-28 11:46:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

RDS: sysctls

Browse source 
RDS exposes a few tunable parameters via sysctls.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andy Grover 2009-02-24 15:30:25 +00:00 committed by David S. Miller
parent 13796bf9ed
commit 3e5048495c
1 changed files with 122 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

122
net/rds/sysctl.c Normal file
View file

@ -0,0 +1,122 @@
/*
* Copyright (c) 2006 Oracle. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/kernel.h>
#include <linux/sysctl.h>
#include <linux/proc_fs.h>
#include "rds.h"
static struct ctl_table_header *rds_sysctl_reg_table;
static unsigned long rds_sysctl_reconnect_min = 1;
static unsigned long rds_sysctl_reconnect_max = ~0UL;
unsigned long rds_sysctl_reconnect_min_jiffies;
unsigned long rds_sysctl_reconnect_max_jiffies = HZ;
unsigned int rds_sysctl_max_unacked_packets = 8;
unsigned int rds_sysctl_max_unacked_bytes = (16 << 20);
unsigned int rds_sysctl_ping_enable = 1;
static ctl_table rds_sysctl_rds_table[] = {
{
.ctl_name = CTL_UNNUMBERED,
.procname = "reconnect_min_delay_ms",
.data = &rds_sysctl_reconnect_min_jiffies,
.maxlen = sizeof(unsigned long),
.mode = 0644,
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
.extra1 = &rds_sysctl_reconnect_min,
.extra2 = &rds_sysctl_reconnect_max_jiffies,
},
{
.ctl_name = CTL_UNNUMBERED,
.procname = "reconnect_max_delay_ms",
.data = &rds_sysctl_reconnect_max_jiffies,
.maxlen = sizeof(unsigned long),
.mode = 0644,
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
.extra1 = &rds_sysctl_reconnect_min_jiffies,
.extra2 = &rds_sysctl_reconnect_max,
},
{
.ctl_name = CTL_UNNUMBERED,
.procname = "max_unacked_packets",
.data = &rds_sysctl_max_unacked_packets,
.maxlen = sizeof(unsigned long),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = CTL_UNNUMBERED,
.procname = "max_unacked_bytes",
.data = &rds_sysctl_max_unacked_bytes,
.maxlen = sizeof(unsigned long),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = CTL_UNNUMBERED,
.procname = "ping_enable",
.data = &rds_sysctl_ping_enable,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{ .ctl_name = 0}
};
static struct ctl_path rds_sysctl_path[] = {
{ .procname = "net", .ctl_name = CTL_NET, },
{ .procname = "rds", .ctl_name = CTL_UNNUMBERED, },
{ }
};
void rds_sysctl_exit(void)
{
if (rds_sysctl_reg_table)
unregister_sysctl_table(rds_sysctl_reg_table);
}
int __init rds_sysctl_init(void)
{
rds_sysctl_reconnect_min = msecs_to_jiffies(1);
rds_sysctl_reconnect_min_jiffies = rds_sysctl_reconnect_min;
rds_sysctl_reg_table = register_sysctl_paths(rds_sysctl_path, rds_sysctl_rds_table);
if (rds_sysctl_reg_table == NULL)
return -ENOMEM;
return 0;
}