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/*
* linux/fs/bad_inode.c
*
* Copyright (C) 1997, Stephen Tweedie
*
* Provide stub functions for unreadable inodes
*
* Fabian Frederick : August 2003 - All file operations assigned to EIO
*/
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/stat.h>
#include <linux/time.h>
#include <linux/smp_lock.h>
#include <linux/namei.h>
#include <linux/poll.h>
static loff_t bad_file_llseek(struct file *file, loff_t offset, int origin)
{
return -EIO;
}
static ssize_t bad_file_read(struct file *filp, char __user *buf,
size_t size, loff_t *ppos)
{
return -EIO;
}
static ssize_t bad_file_write(struct file *filp, const char __user *buf,
size_t siz, loff_t *ppos)
{
return -EIO;
}
static ssize_t bad_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
return -EIO;
}
static ssize_t bad_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
return -EIO;
}
static int bad_file_readdir(struct file *filp, void *dirent, filldir_t filldir)
{
return -EIO;
}
static unsigned int bad_file_poll(struct file *filp, poll_table *wait)
{
return POLLERR;
}
static int bad_file_ioctl (struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
return -EIO;
}
static long bad_file_unlocked_ioctl(struct file *file, unsigned cmd,
unsigned long arg)
{
return -EIO;
}
static long bad_file_compat_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
return -EIO;
}
static int bad_file_mmap(struct file *file, struct vm_area_struct *vma)
{
return -EIO;
}
static int bad_file_open(struct inode *inode, struct file *filp)
{
return -EIO;
}
static int bad_file_flush(struct file *file, fl_owner_t id)
{
return -EIO;
}
static int bad_file_release(struct inode *inode, struct file *filp)
{
return -EIO;
}
static int bad_file_fsync(struct file *file, struct dentry *dentry,
int datasync)
{
return -EIO;
}
static int bad_file_aio_fsync(struct kiocb *iocb, int datasync)
{
return -EIO;
}
static int bad_file_fasync(int fd, struct file *filp, int on)
{
return -EIO;
}
static int bad_file_lock(struct file *file, int cmd, struct file_lock *fl)
{
return -EIO;
}
static ssize_t bad_file_sendfile(struct file *in_file, loff_t *ppos,
size_t count, read_actor_t actor, void *target)
{
return -EIO;
}
static ssize_t bad_file_sendpage(struct file *file, struct page *page,
int off, size_t len, loff_t *pos, int more)
{
return -EIO;
}
static unsigned long bad_file_get_unmapped_area(struct file *file,
unsigned long addr, unsigned long len,
unsigned long pgoff, unsigned long flags)
{
return -EIO;
}
static int bad_file_check_flags(int flags)
{
return -EIO;
}
static int bad_file_dir_notify(struct file *file, unsigned long arg)
{
return -EIO;
}
static int bad_file_flock(struct file *filp, int cmd, struct file_lock *fl)
{
return -EIO;
}
static ssize_t bad_file_splice_write(struct pipe_inode_info *pipe,
struct file *out, loff_t *ppos, size_t len,
unsigned int flags)
{
return -EIO;
}
static ssize_t bad_file_splice_read(struct file *in, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
return -EIO;
}
static const struct file_operations bad_file_ops =
{
.llseek = bad_file_llseek,
.read = bad_file_read,
.write = bad_file_write,
.aio_read = bad_file_aio_read,
.aio_write = bad_file_aio_write,
.readdir = bad_file_readdir,
.poll = bad_file_poll,
.ioctl = bad_file_ioctl,
.unlocked_ioctl = bad_file_unlocked_ioctl,
.compat_ioctl = bad_file_compat_ioctl,
.mmap = bad_file_mmap,
.open = bad_file_open,
.flush = bad_file_flush,
.release = bad_file_release,
.fsync = bad_file_fsync,
.aio_fsync = bad_file_aio_fsync,
.fasync = bad_file_fasync,
.lock = bad_file_lock,
.sendfile = bad_file_sendfile,
.sendpage = bad_file_sendpage,
.get_unmapped_area = bad_file_get_unmapped_area,
.check_flags = bad_file_check_flags,
.dir_notify = bad_file_dir_notify,
.flock = bad_file_flock,
.splice_write = bad_file_splice_write,
.splice_read = bad_file_splice_read,
};
static int bad_inode_create (struct inode *dir, struct dentry *dentry,
int mode, struct nameidata *nd)
{
return -EIO;
}
static struct dentry *bad_inode_lookup(struct inode *dir,
struct dentry *dentry, struct nameidata *nd)
{
return ERR_PTR(-EIO);
}
static int bad_inode_link (struct dentry *old_dentry, struct inode *dir,
struct dentry *dentry)
{
return -EIO;
}
static int bad_inode_unlink(struct inode *dir, struct dentry *dentry)
{
return -EIO;
}
static int bad_inode_symlink (struct inode *dir, struct dentry *dentry,
const char *symname)
{
return -EIO;
}
static int bad_inode_mkdir(struct inode *dir, struct dentry *dentry,
int mode)
{
return -EIO;
}
static int bad_inode_rmdir (struct inode *dir, struct dentry *dentry)
{
return -EIO;
}
static int bad_inode_mknod (struct inode *dir, struct dentry *dentry,
int mode, dev_t rdev)
{
return -EIO;
}
static int bad_inode_rename (struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry)
{
return -EIO;
}
static int bad_inode_readlink(struct dentry *dentry, char __user *buffer,
int buflen)
{
return -EIO;
}
static int bad_inode_permission(struct inode *inode, int mask,
struct nameidata *nd)
{
return -EIO;
}
static int bad_inode_getattr(struct vfsmount *mnt, struct dentry *dentry,
struct kstat *stat)
{
return -EIO;
}
static int bad_inode_setattr(struct dentry *direntry, struct iattr *attrs)
{
return -EIO;
}
static int bad_inode_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size
|