fs/filesystems.c

   1 /*
   2  *  linux/fs/filesystems.c
   3  *
   4  *  Copyright (C) 1991, 1992  Linus Torvalds
   5  *
   6  *  table of configured filesystems
   7  */
   8
   9 #include <linux/config.h>
  10 #include <linux/fs.h>
  11
  12 #include <linux/devfs_fs_kernel.h>
  13 #include <linux/nfs_fs.h>
  14 #include <linux/auto_fs.h>
  15 #include <linux/devpts_fs.h>
  16 #include <linux/major.h>
  17 #include <linux/smp.h>
  18 #include <linux/smp_lock.h>
  19 #include <linux/kmod.h>
  20 #include <linux/init.h>
  21 #include <linux/module.h>
  22 #include <linux/nfsd/interface.h>
  23
  24 #ifdef CONFIG_DEVPTS_FS
  25 extern int init_devpts_fs(void);
  26 #endif
  27
  28 void __init filesystem_setup(void)
  29 {
  30         init_devfs_fs();  /*  Header file may make this empty  */
  31
  32 #ifdef CONFIG_NFS_FS
  33         init_nfs_fs();
  34 #endif
  35
  36 #ifdef CONFIG_DEVPTS_FS
  37         init_devpts_fs();
  38 #endif
  39 }
  40
  41 #if defined(CONFIG_NFSD_MODULE)
  42 struct nfsd_linkage *nfsd_linkage = NULL;
  43
  44 long
  45 asmlinkage sys_nfsservctl(int cmd, void *argp, void *resp)
  46 {
  47         int ret = -ENOSYS;
  48
  49         lock_kernel();
  50
  51         if (nfsd_linkage ||
  52             (request_module ("nfsd") == 0 && nfsd_linkage))
  53                 ret = nfsd_linkage->do_nfsservctl(cmd, argp, resp);
  54
  55         unlock_kernel();
  56         return ret;
  57 }
  58 EXPORT_SYMBOL(nfsd_linkage);
  59
  60 #elif ! defined (CONFIG_NFSD)
  61 asmlinkage int sys_nfsservctl(int cmd, void *argp, void *resp)
  62 {
  63         return -ENOSYS;
  64 }
  65 #endif /* CONFIG_NFSD */