fs/coda/sysctl.c

   1 /*
   2  * Sysctl operations for Coda filesystem
   3  * Original version: (C) 1996 P. Braam and M. Callahan
   4  * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
   5  *
   6  * Carnegie Mellon encourages users to contribute improvements to
   7  * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
   8  */
   9
  10 #include <linux/sysctl.h>
  11
  12 #include "coda_int.h"
  13
  14 #ifdef CONFIG_SYSCTL
  15 static struct ctl_table_header *fs_table_header;
  16 #endif
  17
  18 static ctl_table coda_table[] = {
  19         {
  20                 .ctl_name       = CTL_UNNUMBERED,
  21                 .procname       = "timeout",
  22                 .data           = &coda_timeout,
  23                 .maxlen         = sizeof(int),
  24                 .mode           = 0644,
  25                 .proc_handler   = &proc_dointvec
  26         },
  27         {
  28                 .ctl_name       = CTL_UNNUMBERED,
  29                 .procname       = "hard",
  30                 .data           = &coda_hard,
  31                 .maxlen         = sizeof(int),
  32                 .mode           = 0644,
  33                 .proc_handler   = &proc_dointvec
  34         },
  35         {
  36                 .ctl_name       = CTL_UNNUMBERED,
  37                 .procname       = "fake_statfs",
  38                 .data           = &coda_fake_statfs,
  39                 .maxlen         = sizeof(int),
  40                 .mode           = 0600,
  41                 .proc_handler   = &proc_dointvec
  42         },
  43         {}
  44 };
  45
  46 #ifdef CONFIG_SYSCTL
  47 static ctl_table fs_table[] = {
  48         {
  49                 .ctl_name       = CTL_UNNUMBERED,
  50                 .procname       = "coda",
  51                 .mode           = 0555,
  52                 .child          = coda_table
  53         },
  54         {}
  55 };
  56 #endif
  57
  58 void coda_sysctl_init(void)
  59 {
  60 #ifdef CONFIG_SYSCTL
  61         if ( !fs_table_header )
  62                 fs_table_header = register_sysctl_table(fs_table);
  63 #endif
  64 }
  65
  66 void coda_sysctl_clean(void)
  67 {
  68 #ifdef CONFIG_SYSCTL
  69         if ( fs_table_header ) {
  70                 unregister_sysctl_table(fs_table_header);
  71                 fs_table_header = NULL;
  72         }
  73 #endif
  74 }