linux/fs/jffs2/file.c

/*
 * JFFS2 -- Journalling Flash File System, Version 2.
 *
 * Copyright © 2001-2007 Red Hat, Inc.
 * Copyright © 2004-2010 David Woodhouse <[email protected]>
 *
 * Created by David Woodhouse <[email protected]>
 *
 * For licensing information, see the file 'LICENCE' in this directory.
 *
 */

#define pr_fmt(fmt) …

#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/time.h>
#include <linux/pagemap.h>
#include <linux/highmem.h>
#include <linux/crc32.h>
#include <linux/jffs2.h>
#include "nodelist.h"

static int jffs2_write_end(struct file *filp, struct address_space *mapping,
			loff_t pos, unsigned len, unsigned copied,
			struct page *pg, void *fsdata);
static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
			loff_t pos, unsigned len,
			struct page **pagep, void **fsdata);
static int jffs2_read_folio(struct file *filp, struct folio *folio);

int jffs2_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
{ … }

const struct file_operations jffs2_file_operations = …;

/* jffs2_file_inode_operations */

const struct inode_operations jffs2_file_inode_operations = …;

const struct address_space_operations jffs2_file_address_operations = …;

static int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
{ … }

int __jffs2_read_folio(struct file *file, struct folio *folio)
{ … }

static int jffs2_read_folio(struct file *file, struct folio *folio)
{ … }

static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
			loff_t pos, unsigned len,
			struct page **pagep, void **fsdata)
{ … }

static int jffs2_write_end(struct file *filp, struct address_space *mapping,
			loff_t pos, unsigned len, unsigned copied,
			struct page *pg, void *fsdata)
{ … }