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 static struct ctl_table_header *fs_table_header;
  15
  16 static ctl_table coda_table[] = {
  17         {
  18                 .ctl_name       = CTL_UNNUMBERED,
  19                 .procname       = "timeout",
  20                 .data           = &coda_timeout,
  21                 .maxlen         = sizeof(int),
  22                 .mode           = 0644,
  23                 .proc_handler   = &proc_dointvec
  24         },
  25         {
  26                 .ctl_name       = CTL_UNNUMBERED,
  27                 .procname       = "hard",
  28                 .data           = &coda_hard,
  29                 .maxlen         = sizeof(int),
  30                 .mode           = 0644,
  31                 .proc_handler   = &proc_dointvec
  32         },
  33         {
  34                 .ctl_name       = CTL_UNNUMBERED,
  35                 .procname       = "fake_statfs",
  36                 .data           = &coda_fake_statfs,
  37                 .maxlen         = sizeof(int),
  38                 .mode           = 0600,
  39                 .proc_handler   = &proc_dointvec
  40         },
  41         {}
  42 };
  43
  44 static ctl_table fs_table[] = {
  45         {
  46                 .ctl_name       = CTL_UNNUMBERED,
  47                 .procname       = "coda",
  48                 .mode           = 0555,
  49                 .child          = coda_table
  50         },
  51         {}
  52 };
  53
  54
  55 void coda_sysctl_init(void)
  56 {
  57 #ifdef CONFIG_SYSCTL
  58         if ( !fs_table_header )
  59                 fs_table_header = register_sysctl_table(fs_table);
  60 #endif
  61 }
  62
  63 void coda_sysctl_clean(void)
  64 {
  65 #ifdef CONFIG_SYSCTL
  66         if ( fs_table_header ) {
  67                 unregister_sysctl_table(fs_table_header);
  68                 fs_table_header = NULL;
  69         }
  70 #endif
  71 }