LXR linux/fs/internal.h

   1/* fs/ internal definitions
   2 *
   3 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
   4 * Written by David Howells (dhowells@redhat.com)
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License
   8 * as published by the Free Software Foundation; either version
   9 * 2 of the License, or (at your option) any later version.
  10 */
  11
  12struct super_block;
  13struct linux_binprm;
  14struct path;
  15
  16/*
  17 * block_dev.c
  18 */
  19#ifdef CONFIG_BLOCK
  20extern struct super_block *blockdev_superblock;
  21extern void __init bdev_cache_init(void);
  22
  23static inline int sb_is_blkdev_sb(struct super_block *sb)
  24{
  25        return sb == blockdev_superblock;
  26}
  27
  28#else
  29static inline void bdev_cache_init(void)
  30{
  31}
  32
  33static inline int sb_is_blkdev_sb(struct super_block *sb)
  34{
  35        return 0;
  36}
  37#endif
  38
  39/*
  40 * char_dev.c
  41 */
  42extern void __init chrdev_init(void);
  43
  44/*
  45 * exec.c
  46 */
  47extern int check_unsafe_exec(struct linux_binprm *);
  48
  49/*
  50 * namespace.c
  51 */
  52extern int copy_mount_options(const void __user *, unsigned long *);
  53
  54extern void free_vfsmnt(struct vfsmount *);
  55extern struct vfsmount *alloc_vfsmnt(const char *);
  56extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
  57extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
  58                                struct vfsmount *);
  59extern void release_mounts(struct list_head *);
  60extern void umount_tree(struct vfsmount *, int, struct list_head *);
  61extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
  62
  63extern void __init mnt_init(void);
  64
  65/*
  66 * fs_struct.c
  67 */
  68extern void chroot_fs_refs(struct path *, struct path *);
  69