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_CODA_FS
  25 extern int init_coda(void);
  26 #endif
  27
  28 #ifdef CONFIG_DEVPTS_FS
  29 extern int init_devpts_fs(void);
  30 #endif
  31
  32 void __init filesystem_setup(void)
  33 {
  34         init_devfs_fs();  /*  Header file may make this empty  */
  35
  36 #ifdef CONFIG_NFS_FS
  37         init_nfs_fs();
  38 #endif
  39
  40 #ifdef CONFIG_CODA_FS
  41         init_coda();
  42 #endif
  43
  44 #ifdef CONFIG_DEVPTS_FS
  45         init_devpts_fs();
  46 #endif
  47 }
  48
  49 #if defined(CONFIG_NFSD_MODULE)
  50 struct nfsd_linkage *nfsd_linkage = NULL;
  51
  52 long
  53 asmlinkage sys_nfsservctl(int cmd, void *argp, void *resp)
  54 {
  55         int ret = -ENOSYS;
  56
  57         lock_kernel();
  58
  59         if (nfsd_linkage ||
  60             (request_module ("nfsd") == 0 && nfsd_linkage))
  61                 ret = nfsd_linkage->do_nfsservctl(cmd, argp, resp);
  62
  63         unlock_kernel();
  64         return ret;
  65 }
  66 EXPORT_SYMBOL(nfsd_linkage);
  67
  68 #elif ! defined (CONFIG_NFSD)
  69 asmlinkage int sys_nfsservctl(int cmd, void *argp, void *resp)
  70 {
  71         return -ENOSYS;
  72 }
  73 #endif /* CONFIG_NFSD */