Linux Kernel  3.7.1
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sysctl.c
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1 /*
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33 #include <linux/kernel.h>
34 #include <linux/sysctl.h>
35 #include <linux/proc_fs.h>
36 
37 #include "rds.h"
38 
39 static struct ctl_table_header *rds_sysctl_reg_table;
40 
41 static unsigned long rds_sysctl_reconnect_min = 1;
42 static unsigned long rds_sysctl_reconnect_max = ~0UL;
43 
46 
48 unsigned int rds_sysctl_max_unacked_bytes = (16 << 20);
49 
50 unsigned int rds_sysctl_ping_enable = 1;
51 
52 static ctl_table rds_sysctl_rds_table[] = {
53  {
54  .procname = "reconnect_min_delay_ms",
56  .maxlen = sizeof(unsigned long),
57  .mode = 0644,
59  .extra1 = &rds_sysctl_reconnect_min,
61  },
62  {
63  .procname = "reconnect_max_delay_ms",
65  .maxlen = sizeof(unsigned long),
66  .mode = 0644,
69  .extra2 = &rds_sysctl_reconnect_max,
70  },
71  {
72  .procname = "max_unacked_packets",
74  .maxlen = sizeof(unsigned long),
75  .mode = 0644,
77  },
78  {
79  .procname = "max_unacked_bytes",
81  .maxlen = sizeof(unsigned long),
82  .mode = 0644,
84  },
85  {
86  .procname = "ping_enable",
87  .data = &rds_sysctl_ping_enable,
88  .maxlen = sizeof(int),
89  .mode = 0644,
91  },
92  { }
93 };
94 
95 void rds_sysctl_exit(void)
96 {
97  if (rds_sysctl_reg_table)
98  unregister_net_sysctl_table(rds_sysctl_reg_table);
99 }
100 
102 {
103  rds_sysctl_reconnect_min = msecs_to_jiffies(1);
104  rds_sysctl_reconnect_min_jiffies = rds_sysctl_reconnect_min;
105 
106  rds_sysctl_reg_table = register_net_sysctl(&init_net,"net/rds", rds_sysctl_rds_table);
107  if (!rds_sysctl_reg_table)
108  return -ENOMEM;
109  return 0;
110 }