blob: 5d9fe1f77041b68c323b5f02bb7f82ad3f0212bd [file] [log] [blame]
/* fs/ internal definitions
* Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (
* 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
extern void __init bdev_cache_init(void);
extern int __sync_blockdev(struct block_device *bdev, int wait);
static inline void bdev_cache_init(void)
static inline int __sync_blockdev(struct block_device *bdev, int wait)
return 0;
* 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);
* fs_context.c
extern const struct fs_context_operations legacy_fs_context_ops;
extern int legacy_init_fs_context(struct fs_context *fc, struct dentry *dentry);
* fsopen.c
extern void vfs_clean_context(struct fs_context *fc);
* namei.c
extern int filename_lookup(int dfd, struct filename *name, unsigned flags,
struct path *path, struct path *root);
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 int parse_monolithic_mount_data(struct fs_context *, void *, size_t);
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(struct vfsmount *);
extern int __mnt_want_write_file(struct file *);
extern void __mnt_drop_write(struct vfsmount *);
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 reconfigure_super(struct fs_context *);
extern bool trylock_super(struct super_block *sb);
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);