fs/ntfs/sysctl.c

   1 /*
   2  *  sysctl.c
   3  *  System control stuff
   4  *
   5  *  Copyright (C) 1997 Martin von Löwis
   6  *  Copyright (C) 1997 Régis Duchesne
   7  *
   8  */
   9
  10 #include "sysctl.h"
  11
  12 #ifdef DEBUG
  13 #include <linux/locks.h>
  14 #include <linux/sysctl.h>
  15
  16 int ntdebug = 0;
  17
  18 /* Add or remove the debug sysctl
  19  * Is this really the only file system with sysctls ?
  20  */
  21 void ntfs_sysctl(int add)
  22 {
  23 #define FS_NTFS             1
  24         /* Definition of the sysctl */
  25         static ctl_table ntfs_sysctls[]={
  26                 {FS_NTFS,                  /* ID */
  27                  "ntfs-debug",             /* name in /proc */
  28                  &ntdebug,sizeof(ntdebug), /* data ptr, data size */
  29                  0644,                     /* mode */
  30                  0,                        /* child */
  31                  proc_dointvec,            /* proc handler */
  32                  0,                        /* strategy */
  33                  0,                        /* proc control block */
  34                  0,0},                     /* extra */
  35                 {0}
  36         };
  37         /* Define the parent file : /proc/sys/fs */
  38         static ctl_table sysctls_root[]={
  39                 {CTL_FS,
  40                  "fs",
  41                  NULL,0,
  42                  0555,
  43                  ntfs_sysctls},
  44                 {0}
  45         };
  46         static struct ctl_table_header *sysctls_root_header = NULL;
  47
  48         if(add){
  49                 if(!sysctls_root_header)
  50                         sysctls_root_header = register_sysctl_table(sysctls_root, 0);
  51         } else if(sysctls_root_header) {
  52                 unregister_sysctl_table(sysctls_root_header);
  53                 sysctls_root_header = NULL;
  54         }
  55 }
  56 #endif /* DEBUG */
  57
  58 /*
  59  * Local variables:
  60  * c-file-style: "linux"
  61  * End:
  62  */