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     AFS_RWLOCK_INIT(&afs_xosi, "afs_xosi");
  54
  55 #ifdef HAVE_LINUX_KUID_T
  56     afs_ns = afs_current_user_ns();
  57 #endif
  58
  59     osi_Init();
  60 #if !defined(AFS_NONFSTRANS)
  61     osi_linux_nfssrv_init();
  62 #endif
  63
  64     err = osi_syscall_init();
  65     if (err)
  66         return err;
  67     err = afs_init_inodecache();
  68     if (err) {
  69         osi_syscall_clean();
  70         return err;
  71     }
  72     err = register_filesystem(&afs_fs_type);
  73     if (err) {
  74         afs_destroy_inodecache();
  75         osi_syscall_clean();
  76         return err;
  77     }
  78
  79     osi_sysctl_init();
  80 #ifdef LINUX_KEYRING_SUPPORT
  81     osi_keyring_init();
  82 #endif
  83     osi_proc_init();
  84     osi_ioctl_init();
  85     afs_init_pagecopy();
  86
  87     return 0;
  88 }
  89
  90 void __exit
  91 afs_cleanup(void)
  92 {
  93     afs_shutdown_pagecopy();
  94
  95 #ifdef LINUX_KEYRING_SUPPORT
  96     osi_keyring_shutdown();
  97 #endif
  98     osi_sysctl_clean();
  99     osi_syscall_clean();
 100     unregister_filesystem(&afs_fs_type);
 101
 102     afs_destroy_inodecache();
 103 #if !defined(AFS_NONFSTRANS)
 104     osi_linux_nfssrv_shutdown();
 105 #endif
 106     shutdown_osisleep();
 107     osi_linux_free_afs_memory();
 108
 109     osi_ioctl_clean();
 110     osi_proc_clean();
 111
 112     return;
 113 }
 114
 115 MODULE_LICENSE("http://www.openafs.org/dl/license10.html");
 116 module_init(afs_init);
 117 module_exit(afs_cleanup);
 118