src/afs/LINUX/osi_module.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 /*
  11  * Linux module support routines.
  12  *
  13  */
  14 #include <afsconfig.h>
  15 #include "afs/param.h"
  16
  17
  18 #include <linux/module.h> /* early to avoid printf->printk mapping */
  19 #include "afs/sysincludes.h"
  20 #include "afsincludes.h"
  21 #include <linux/unistd.h>               /* For syscall numbers. */
  22 #include <linux/mm.h>
  23
  24 #ifdef AFS_AMD64_LINUX20_ENV
  25 #include <asm/ia32_unistd.h>
  26 #endif
  27
  28 #include <linux/proc_fs.h>
  29 #include <linux/slab.h>
  30 #include <linux/init.h>
  31 #include <linux/sched.h>
  32 #include <linux/kernel.h>
  33
  34 #include "osi_pagecopy.h"
  35
  36 extern struct file_system_type afs_fs_type;
  37
  38 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
  39 DEFINE_MUTEX(afs_global_lock);
  40 #else
  41 DECLARE_MUTEX(afs_global_lock);
  42 #endif
  43 int afs_global_owner = 0;
  44
  45 #ifdef HAVE_LINUX_KUID_T
  46 struct user_namespace *afs_ns;
  47 #endif
  48
  49 int __init
  50 afs_init(void)
  51 {
  52     int err;
  53
  54 #ifdef HAVE_LINUX_KUID_T
  55     afs_ns = afs_current_user_ns();
  56 #endif
  57
  58     osi_Init();
  59 #if !defined(AFS_NONFSTRANS)
  60     osi_linux_nfssrv_init();
  61 #endif
  62
  63     err = osi_syscall_init();
  64     if (err)
  65         return err;
  66     err = afs_init_inodecache();
  67     if (err) {
  68         osi_syscall_clean();
  69         return err;
  70     }
  71     err = register_filesystem(&afs_fs_type);
  72     if (err) {
  73         afs_destroy_inodecache();
  74         osi_syscall_clean();
  75         return err;
  76     }
  77
  78     osi_sysctl_init();
  79 #ifdef LINUX_KEYRING_SUPPORT
  80     osi_keyring_init();
  81 #endif
  82     osi_proc_init();
  83     osi_ioctl_init();
  84     afs_init_pagecopy();
  85
  86     return 0;
  87 }
  88
  89 void __exit
  90 afs_cleanup(void)
  91 {
  92     afs_shutdown_pagecopy();
  93
  94 #ifdef LINUX_KEYRING_SUPPORT
  95     osi_keyring_shutdown();
  96 #endif
  97     osi_sysctl_clean();
  98     osi_syscall_clean();
  99     unregister_filesystem(&afs_fs_type);
 100
 101     afs_destroy_inodecache();
 102 #if !defined(AFS_NONFSTRANS)
 103     osi_linux_nfssrv_shutdown();
 104 #endif
 105     shutdown_osisleep();
 106     osi_linux_free_afs_memory();
 107
 108     osi_ioctl_clean();
 109     osi_proc_clean();
 110
 111     return;
 112 }
 113
 114 MODULE_LICENSE("http://www.openafs.org/dl/license10.html");
 115 module_init(afs_init);
 116 module_exit(afs_cleanup);
 117