src/kernel/linux-2.6/file.c File Reference

Linux VFS file operations. More...

#include "pvfs2-kernel.h"
#include "pvfs2-bufmap.h"
#include "pvfs2-types.h"
#include "pvfs2-internal.h"
#include <linux/fs.h>
#include <linux/pagemap.h>

Functions
int	pvfs2_file_open (struct inode *inode, struct file *file)
ssize_t	pvfs2_inode_read (struct inode *inode, char __user *buf, size_t count, loff_t *offset, int copy_to_user, loff_t readahead_size)
ssize_t	pvfs2_file_read (struct file *file, char __user *buf, size_t count, loff_t *offset)
ssize_t	pvfs2_file_write (struct file *file, const char __user *buf, size_t count, loff_t *offset)
ssize_t	pvfs2_file_readv (struct file *file, const struct iovec *iov, unsigned long nr_segs, loff_t *offset)
ssize_t	pvfs2_file_writev (struct file *file, const struct iovec *iov, unsigned long nr_segs, loff_t *offset)
int	pvfs2_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
int	pvfs2_file_mmap (struct file *file, struct vm_area_struct *vma)
int	pvfs2_file_release (struct inode *inode, struct file *file)
int	pvfs2_fsync (struct file *file, struct dentry *dentry, int datasync)
loff_t	pvfs2_file_llseek (struct file *file, loff_t offset, int origin)
Variables
file_operations	pvfs2_file_operations

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Detailed Description

Linux VFS file operations.

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Function Documentation

loff_t pvfs2_file_llseek (  struct file *  file, loff_t  offset, int  origin )

Change the file pointer position for an instance of an open file. Note: If .llseek is overriden, we must acquire lock as described in Documentation/filesystems/Locking.

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int pvfs2_file_mmap (  struct file *  file, struct vm_area_struct *  vma )  [static]

Memory map a region of a file.

ssize_t pvfs2_file_read (  struct file *  file, char __user *  buf, size_t  count, loff_t *  offset )

Read data from a specified offset in a file into a user buffer.

ssize_t pvfs2_file_readv (  struct file *  file, const struct iovec *  iov, unsigned long  nr_segs, loff_t *  offset )  [static]

Reads data to several contiguous user buffers (an iovec) from a file at a specified offset.

ssize_t pvfs2_file_write (  struct file *  file, const char __user *  buf, size_t  count, loff_t *  offset )  [static]

Write data from a contiguous user buffer into a file at a specified offset.

ssize_t pvfs2_file_writev (  struct file *  file, const struct iovec *  iov, unsigned long  nr_segs, loff_t *  offset )  [static]

Write data from a several contiguous user buffers (an iovec) into a file at a specified offset.

int pvfs2_fsync (  struct file *  file, struct dentry *  dentry, int  datasync )

Push all data for a specific file onto permanent storage.

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ssize_t pvfs2_inode_read (  struct inode *  inode, char __user *  buf, size_t  count, loff_t *  offset, int  copy_to_user, loff_t  readahead_size )

Read data from a specified offset in a file (referenced by inode). Data may be placed either in a user or kernel buffer.

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int pvfs2_ioctl (  struct inode *  inode, struct file *  file, unsigned int  cmd, unsigned long  arg )

Perform a miscellaneous operation on a file.

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