hostfs_kern.c File Reference

#include <linux/fs.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/pagemap.h>
#include <linux/statfs.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
#include <linux/mount.h>
#include <linux/namei.h>
#include "hostfs.h"
#include <init.h>
#include <kern.h>

Go to the source code of this file.

Data Structures
struct	hostfs_inode_info

Macros
#define	FILE_HOSTFS_I(file)   HOSTFS_I((file)->f_path.dentry->d_inode)
#define	HOSTFS_SUPER_MAGIC   0x00c0ffee

Functions
	__uml_setup ("hostfs=", hostfs_args,"hostfs=<root dir>,<flags>,...\n"" This is used to set hostfs parameters. The root directory argument\n"" is used to confine all hostfs mounts to within the specified directory\n"" tree on the host. If this isn't specified, then a user inside UML can\n"" mount anything on the host that's accessible to the user that's running\n"" it.\n"" The only flag currently supported is 'append', which specifies that all\n"" files opened by hostfs will be opened in append mode.\n\n")
int	hostfs_statfs (struct dentry *dentry, struct kstatfs *sf)
int	hostfs_readdir (struct file *file, void *ent, filldir_t filldir)
int	hostfs_file_open (struct inode *ino, struct file *file)
int	hostfs_fsync (struct file *file, loff_t start, loff_t end, int datasync)
int	hostfs_writepage (struct page *page, struct writeback_control *wbc)
int	hostfs_readpage (struct file *file, struct page *page)
int	hostfs_write_begin (struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata)
int	hostfs_write_end (struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata)
int	hostfs_create (struct inode *dir, struct dentry *dentry, umode_t mode, bool excl)
struct dentry *	hostfs_lookup (struct inode *ino, struct dentry *dentry, unsigned int flags)
int	hostfs_link (struct dentry *to, struct inode *ino, struct dentry *from)
int	hostfs_unlink (struct inode *ino, struct dentry *dentry)
int	hostfs_symlink (struct inode *ino, struct dentry *dentry, const char *to)
int	hostfs_mkdir (struct inode *ino, struct dentry *dentry, umode_t mode)
int	hostfs_rmdir (struct inode *ino, struct dentry *dentry)
int	hostfs_rename (struct inode *from_ino, struct dentry *from, struct inode *to_ino, struct dentry *to)
int	hostfs_permission (struct inode *ino, int desired)
int	hostfs_setattr (struct dentry *dentry, struct iattr *attr)

Macro Definition Documentation

#define FILE_HOSTFS_I

(

file

)

HOSTFS_I((file)->f_path.dentry->d_inode)

Definition at line 33 of file hostfs_kern.c.

#define HOSTFS_SUPER_MAGIC   0x00c0ffee

Definition at line 48 of file hostfs_kern.c.

Function Documentation

__uml_setup	(	"	hostfs = ", hostfs_args,"hostfs=<root dir>,
		< flags >	,
		...\n""This is used to set hostfs parameters.The root directory argument\n""is used to confine all hostfs mounts to within the specified directory\n""tree on the host.If this isn't	specified,
		then a user inside UML can\n""mount anything on the host that's accessible to the user that's running\n""it.\n""The only flag currently supported is 'append'	,
		which specifies that all\n""files opened by hostfs will be opened in append mode.\n\n"
	)

int hostfs_create	(	struct inode *	dir,
		struct dentry *	dentry,
		umode_t	mode,
		bool	excl
	)

Definition at line 555 of file hostfs_kern.c.

int hostfs_file_open	(	struct inode *	ino,
		struct file *	file
	)

Definition at line 306 of file hostfs_kern.c.

int hostfs_fsync	(	struct file *	file,
		loff_t	start,
		loff_t	end,
		int	datasync
	)

Definition at line 365 of file hostfs_kern.c.

int hostfs_link	(	struct dentry *	to,
		struct inode *	ino,
		struct dentry *	from
	)

Definition at line 634 of file hostfs_kern.c.

struct dentry* hostfs_lookup ( struct inode *  ino, struct dentry *  dentry, unsigned int  flags  )

read

Definition at line 597 of file hostfs_kern.c.

int hostfs_mkdir	(	struct inode *	ino,
		struct dentry *	dentry,
		umode_t	mode
	)

Definition at line 680 of file hostfs_kern.c.

int hostfs_permission	(	struct inode *	ino,
		int	desired
	)

Definition at line 762 of file hostfs_kern.c.

int hostfs_readdir	(	struct file *	file,
		void *	ent,
		filldir_t	filldir
	)

Definition at line 280 of file hostfs_kern.c.

int hostfs_readpage	(	struct file *	file,
		struct page *	page
	)

Definition at line 436 of file hostfs_kern.c.

int hostfs_rename	(	struct inode *	from_ino,
		struct dentry *	from,
		struct inode *	to_ino,
		struct dentry *	to
	)

Definition at line 744 of file hostfs_kern.c.

int hostfs_rmdir	(	struct inode *	ino,
		struct dentry *	dentry
	)

Definition at line 692 of file hostfs_kern.c.

int hostfs_setattr	(	struct dentry *	dentry,
		struct iattr *	attr
	)

Definition at line 788 of file hostfs_kern.c.

int hostfs_statfs	(	struct dentry *	dentry,
		struct kstatfs *	sf
	)

Definition at line 199 of file hostfs_kern.c.

int hostfs_symlink	(	struct inode *	ino,
		struct dentry *	dentry,
		const char *	to
	)

Definition at line 668 of file hostfs_kern.c.

int hostfs_unlink	(	struct inode *	ino,
		struct dentry *	dentry
	)

Definition at line 652 of file hostfs_kern.c.

int hostfs_write_begin	(	struct file *	file,
		struct address_space *	mapping,
		loff_t	pos,
		unsigned	len,
		unsigned	flags,
		struct page **	pagep,
		void **	fsdata
	)

Definition at line 461 of file hostfs_kern.c.

int hostfs_write_end	(	struct file *	file,
		struct address_space *	mapping,
		loff_t	pos,
		unsigned	len,
		unsigned	copied,
		struct page *	page,
		void *	fsdata
	)

Definition at line 473 of file hostfs_kern.c.

int hostfs_writepage	(	struct page *	page,
		struct writeback_control *	wbc
	)

Definition at line 400 of file hostfs_kern.c.