linux/fs/jffs2/dir.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/slab.h>
#include <linux/fs.h>
#include <linux/crc32.h>
#include <linux/jffs2.h>
#include "jffs2_fs_i.h"
#include "jffs2_fs_sb.h"
#include <linux/time.h>
#include "nodelist.h"

static int jffs2_readdir (struct file *, struct dir_context *);

static int jffs2_create (struct mnt_idmap *, struct inode *,
		         struct dentry *, umode_t, bool);
static struct dentry *jffs2_lookup (struct inode *,struct dentry *,
				    unsigned int);
static int jffs2_link (struct dentry *,struct inode *,struct dentry *);
static int jffs2_unlink (struct inode *,struct dentry *);
static int jffs2_symlink (struct mnt_idmap *, struct inode *,
			  struct dentry *, const char *);
static int jffs2_mkdir (struct mnt_idmap *, struct inode *,struct dentry *,
			umode_t);
static int jffs2_rmdir (struct inode *,struct dentry *);
static int jffs2_mknod (struct mnt_idmap *, struct inode *,struct dentry *,
			umode_t,dev_t);
static int jffs2_rename (struct mnt_idmap *, struct inode *,
			 struct dentry *, struct inode *, struct dentry *,
			 unsigned int);

const struct file_operations jffs2_dir_operations = …;


const struct inode_operations jffs2_dir_inode_operations = …;

/***********************************************************************/


/* We keep the dirent list sorted in increasing order of name hash,
   and we use the same hash function as the dentries. Makes this
   nice and simple
*/
static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target,
				   unsigned int flags)
{ … }

/***********************************************************************/


static int jffs2_readdir(struct file *file, struct dir_context *ctx)
{ … }

/***********************************************************************/


static int jffs2_create(struct mnt_idmap *idmap, struct inode *dir_i,
			struct dentry *dentry, umode_t mode, bool excl)
{ … }

/***********************************************************************/


static int jffs2_unlink(struct inode *dir_i, struct dentry *dentry)
{ … }
/***********************************************************************/


static int jffs2_link (struct dentry *old_dentry, struct inode *dir_i, struct dentry *dentry)
{ … }

/***********************************************************************/

static int jffs2_symlink (struct mnt_idmap *idmap, struct inode *dir_i,
			  struct dentry *dentry, const char *target)
{ … }


static int jffs2_mkdir (struct mnt_idmap *idmap, struct inode *dir_i,
		        struct dentry *dentry, umode_t mode)
{ … }

static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
{ … }

static int jffs2_mknod (struct mnt_idmap *idmap, struct inode *dir_i,
		        struct dentry *dentry, umode_t mode, dev_t rdev)
{ … }

static int jffs2_rename (struct mnt_idmap *idmap,
			 struct inode *old_dir_i, struct dentry *old_dentry,
			 struct inode *new_dir_i, struct dentry *new_dentry,
			 unsigned int flags)
{ … }