/* fs/ internal definitions * * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <linux/lglock.h> struct super_block; struct linux_binprm; struct path; /* * block_dev.c */ #ifdef CONFIG_BLOCK extern struct super_block *blockdev_superblock; extern void __init bdev_cache_init(void); static inline int sb_is_blkdev_sb(struct super_block *sb) { return sb == blockdev_superblock; } extern int __sync_blockdev(struct block_device *bdev, int wait); #else static inline void bdev_cache_init(void) { } static inline int sb_is_blkdev_sb(struct super_block *sb) { return 0; } static inline int __sync_blockdev(struct block_device *bdev, int wait) { return 0; } #endif /* * char_dev.c */ extern void __init chrdev_init(void); /* * exec.c */ extern int check_unsafe_exec(struct linux_binprm *); /* * namespace.c */ extern int copy_mount_options(const void __user *, unsigned long *); extern int copy_mount_string(const void __user *, char **); extern void free_vfsmnt(struct vfsmount *); extern struct vfsmount *alloc_vfsmnt(const char *); extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int); extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *, struct vfsmount *); extern void release_mounts(struct list_head *); extern void umount_tree(struct vfsmount *, int, struct list_head *); extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int); extern void __init mnt_init(void); DECLARE_BRLOCK(vfsmount_lock); /* * fs_struct.c */ extern void chroot_fs_refs(struct path *, struct path *); /* * file_table.c */ extern void file_sb_list_add(struct file *f, struct super_block *sb); extern void file_sb_list_del(struct file *f); extern void mark_files_ro(struct super_block *); extern struct file *get_empty_filp(void); /* * super.c */ extern int do_remount_sb(struct super_block *, int, void *, int); extern void __put_super(struct super_block *sb); extern void put_super(struct super_block *sb); /* * open.c */ struct nameidata; extern struct file *nameidata_to_filp(struct nameidata *); extern void release_open_intent(struct nameidata *);