201 lines
5.2 KiB
C
201 lines
5.2 KiB
C
/* 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.
|
|
*/
|
|
|
|
struct super_block;
|
|
struct file_system_type;
|
|
struct iomap;
|
|
struct iomap_ops;
|
|
struct linux_binprm;
|
|
struct path;
|
|
struct mount;
|
|
struct shrink_control;
|
|
|
|
/*
|
|
* block_dev.c
|
|
*/
|
|
#ifdef CONFIG_BLOCK
|
|
extern void __init bdev_cache_init(void);
|
|
|
|
extern int __sync_blockdev(struct block_device *bdev, int wait);
|
|
|
|
#else
|
|
static inline void bdev_cache_init(void)
|
|
{
|
|
}
|
|
|
|
static inline int __sync_blockdev(struct block_device *bdev, int wait)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* buffer.c
|
|
*/
|
|
extern void guard_bio_eod(int rw, struct bio *bio);
|
|
extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len,
|
|
get_block_t *get_block, struct iomap *iomap);
|
|
int __generic_write_end(struct inode *inode, loff_t pos, unsigned copied,
|
|
struct page *page);
|
|
|
|
/*
|
|
* char_dev.c
|
|
*/
|
|
extern void __init chrdev_init(void);
|
|
|
|
#ifdef CONFIG_PROC_DLOG
|
|
/*
|
|
* dlog_hook.c
|
|
*/
|
|
void dlog_hook(struct dentry *, struct inode *, struct path *);
|
|
void dlog_hook_rmdir(struct dentry *, struct path *);
|
|
#endif
|
|
|
|
/*
|
|
* namei.c
|
|
*/
|
|
extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *);
|
|
extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
|
|
const char *, unsigned int, struct path *);
|
|
long do_mknodat(int dfd, const char __user *filename, umode_t mode,
|
|
unsigned int dev);
|
|
long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
|
|
long do_rmdir(int dfd, const char __user *pathname);
|
|
long do_unlinkat(int dfd, struct filename *name);
|
|
long do_symlinkat(const char __user *oldname, int newdfd,
|
|
const char __user *newname);
|
|
int do_linkat(int olddfd, const char __user *oldname, int newdfd,
|
|
const char __user *newname, int flags);
|
|
|
|
/*
|
|
* namespace.c
|
|
*/
|
|
extern void *copy_mount_options(const void __user *);
|
|
extern char *copy_mount_string(const void __user *);
|
|
|
|
extern struct vfsmount *lookup_mnt(const struct path *);
|
|
extern int finish_automount(struct vfsmount *, struct path *);
|
|
|
|
extern int sb_prepare_remount_readonly(struct super_block *);
|
|
|
|
extern void __init mnt_init(void);
|
|
|
|
extern int __mnt_want_write_file(struct file *);
|
|
extern void __mnt_drop_write_file(struct file *);
|
|
|
|
/*
|
|
* fs_struct.c
|
|
*/
|
|
extern void chroot_fs_refs(const struct path *, const struct path *);
|
|
|
|
/*
|
|
* file_table.c
|
|
*/
|
|
extern struct file *alloc_empty_file(int, const struct cred *);
|
|
extern struct file *alloc_empty_file_noaccount(int, const struct cred *);
|
|
|
|
/*
|
|
* super.c
|
|
*/
|
|
extern int do_remount_sb(struct super_block *, int, void *, int);
|
|
extern int do_remount_sb2(struct vfsmount *, struct super_block *, int,
|
|
void *, int);
|
|
extern bool trylock_super(struct super_block *sb);
|
|
extern struct dentry *mount_fs(struct file_system_type *,
|
|
int, const char *, struct vfsmount *, void *);
|
|
extern struct super_block *user_get_super(dev_t);
|
|
|
|
/*
|
|
* open.c
|
|
*/
|
|
struct open_flags {
|
|
int open_flag;
|
|
umode_t mode;
|
|
int acc_mode;
|
|
int intent;
|
|
int lookup_flags;
|
|
};
|
|
extern struct file *do_filp_open(int dfd, struct filename *pathname,
|
|
const struct open_flags *op);
|
|
extern struct file *do_file_open_root(struct dentry *, struct vfsmount *,
|
|
const char *, const struct open_flags *);
|
|
|
|
long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
|
|
long do_faccessat(int dfd, const char __user *filename, int mode);
|
|
int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
|
|
int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group,
|
|
int flag);
|
|
|
|
extern int vfs_open(const struct path *, struct file *);
|
|
|
|
/*
|
|
* inode.c
|
|
*/
|
|
extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc);
|
|
extern void inode_add_lru(struct inode *inode);
|
|
extern int dentry_needs_remove_privs(struct dentry *dentry);
|
|
|
|
/*
|
|
* fs-writeback.c
|
|
*/
|
|
extern void inode_io_list_del(struct inode *inode);
|
|
|
|
extern long get_nr_dirty_inodes(void);
|
|
extern int invalidate_inodes(struct super_block *, bool);
|
|
|
|
/*
|
|
* dcache.c
|
|
*/
|
|
extern struct dentry *__d_alloc(struct super_block *, const struct qstr *);
|
|
extern int d_set_mounted(struct dentry *dentry);
|
|
extern long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc);
|
|
extern struct dentry *d_alloc_cursor(struct dentry *);
|
|
|
|
/*
|
|
* read_write.c
|
|
*/
|
|
extern int rw_verify_area(int, struct file *, const loff_t *, size_t);
|
|
|
|
/*
|
|
* pipe.c
|
|
*/
|
|
extern const struct file_operations pipefifo_fops;
|
|
|
|
/*
|
|
* fs_pin.c
|
|
*/
|
|
extern void group_pin_kill(struct hlist_head *p);
|
|
extern void mnt_pin_kill(struct mount *m);
|
|
|
|
/*
|
|
* fs/nsfs.c
|
|
*/
|
|
extern const struct dentry_operations ns_dentry_operations;
|
|
|
|
/*
|
|
* fs/ioctl.c
|
|
*/
|
|
extern int do_vfs_ioctl(struct file *file, unsigned int fd, unsigned int cmd,
|
|
unsigned long arg);
|
|
|
|
/*
|
|
* iomap support:
|
|
*/
|
|
typedef loff_t (*iomap_actor_t)(struct inode *inode, loff_t pos, loff_t len,
|
|
void *data, struct iomap *iomap);
|
|
|
|
loff_t iomap_apply(struct inode *inode, loff_t pos, loff_t length,
|
|
unsigned flags, const struct iomap_ops *ops, void *data,
|
|
iomap_actor_t actor);
|
|
|
|
/* direct-io.c: */
|
|
int sb_init_dio_done_wq(struct super_block *sb);
|