drivers/scsi/scsi_sysctl.c

   1 /*
   2  * Copyright (C) 2003 Christoph Hellwig.
   3  *      Released under GPL v2.
   4  */
   5
   6 #include <linux/errno.h>
   7 #include <linux/init.h>
   8 #include <linux/kernel.h>
   9 #include <linux/sysctl.h>
  10
  11 #include "scsi_logging.h"
  12 #include "scsi_priv.h"
  13
  14
  15 static ctl_table scsi_table[] = {
  16         { .ctl_name     = DEV_SCSI_LOGGING_LEVEL,
  17           .procname     = "logging_level",
  18           .data         = &scsi_logging_level,
  19           .maxlen       = sizeof(scsi_logging_level),
  20           .mode         = 0644,
  21           .proc_handler = &proc_dointvec },
  22         { }
  23 };
  24
  25 static ctl_table scsi_dir_table[] = {
  26         { .ctl_name     = DEV_SCSI,
  27           .procname     = "scsi",
  28           .mode         = 0555,
  29           .child        = scsi_table },
  30         { }
  31 };
  32
  33 static ctl_table scsi_root_table[] = {
  34         { .ctl_name     = CTL_DEV,
  35           .procname     = "dev",
  36           .mode         = 0555,
  37           .child        = scsi_dir_table },
  38         { }
  39 };
  40
  41 static struct ctl_table_header *scsi_table_header;
  42
  43 int __init scsi_init_sysctl(void)
  44 {
  45         scsi_table_header = register_sysctl_table(scsi_root_table);
  46         if (!scsi_table_header)
  47                 return -ENOMEM;
  48         return 0;
  49 }
  50
  51 void scsi_exit_sysctl(void)
  52 {
  53         unregister_sysctl_table(scsi_table_header);
  54 }