Remove JFFS (version 1), as scheduled.

Unmaintained for years, few if any users.

Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 0 insertions, 1847 deletions

diff --git a/fs/jffs/inode-v23.c b/fs/jffs/inode-v23.c
deleted file mode 100644
index 9602b925da0..00000000000
--- a/fs/jffs/inode-v23.c
+++ /dev/null
@@ -1,1847 +0,0 @@
-/*
- * JFFS -- Journalling Flash File System, Linux implementation.
- *
- * Copyright (C) 1999, 2000  Axis Communications AB.
- *
- * Created by Finn Hakansson <finn@axis.com>.
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * $Id: inode-v23.c,v 1.70 2001/10/02 09:16:02 dwmw2 Exp $
- *
- * Ported to Linux 2.3.x and MTD:
- * Copyright (C) 2000  Alexander Larsson (alex@cendio.se), Cendio Systems AB
- *
- * Copyright 2000, 2001  Red Hat, Inc.
- */
-
-/* inode.c -- Contains the code that is called from the VFS.  */
-
-/* TODO-ALEX:
- * uid and gid are just 16 bit.
- * jffs_file_write reads from user-space pointers without xx_from_user
- * maybe other stuff do to.
- */
-
-#include <linux/time.h>
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/jffs.h>
-#include <linux/fs.h>
-#include <linux/smp_lock.h>
-#include <linux/ioctl.h>
-#include <linux/stat.h>
-#include <linux/blkdev.h>
-#include <linux/quotaops.h>
-#include <linux/highmem.h>
-#include <linux/vfs.h>
-#include <linux/mutex.h>
-#include <asm/byteorder.h>
-#include <asm/uaccess.h>
-
-#include "jffs_fm.h"
-#include "intrep.h"
-#ifdef CONFIG_JFFS_PROC_FS
-#include "jffs_proc.h"
-#endif
-
-static int jffs_remove(struct inode *dir, struct dentry *dentry, int type);
-
-static const struct super_operations jffs_ops;
-static const struct file_operations jffs_file_operations;
-static const struct inode_operations jffs_file_inode_operations;
-static const struct file_operations jffs_dir_operations;
-static const struct inode_operations jffs_dir_inode_operations;
-static const struct address_space_operations jffs_address_operations;
-
-struct kmem_cache     *node_cache = NULL;
-struct kmem_cache     *fm_cache = NULL;
-
-/* Called by the VFS at mount time to initialize the whole file system.  */
-static int jffs_fill_super(struct super_block *sb, void *data, int silent)
-{
-	struct inode *root_inode;
-	struct jffs_control *c;
-
-	sb->s_flags |= MS_NODIRATIME;
-
-	D1(printk(KERN_NOTICE "JFFS: Trying to mount device %s.\n",
-		  sb->s_id));
-
-	if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) {
-		printk(KERN_WARNING "JFFS: Trying to mount a "
-		       "non-mtd device.\n");
-		return -EINVAL;
-	}
-
-	sb->s_blocksize = PAGE_CACHE_SIZE;
-	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
-	sb->s_fs_info = (void *) 0;
-	sb->s_maxbytes = 0xFFFFFFFF;
-
-	/* Build the file system.  */
-	if (jffs_build_fs(sb) < 0) {
-		goto jffs_sb_err1;
-	}
-
-	/*
-	 * set up enough so that we can read an inode
-	 */
-	sb->s_magic = JFFS_MAGIC_SB_BITMASK;
-	sb->s_op = &jffs_ops;
-
-	root_inode = iget(sb, JFFS_MIN_INO);
-	if (!root_inode)
-	        goto jffs_sb_err2;
-
-	/* Get the root directory of this file system.  */
-	if (!(sb->s_root = d_alloc_root(root_inode))) {
-		goto jffs_sb_err3;
-	}
-
-	c = (struct jffs_control *) sb->s_fs_info;
-
-#ifdef CONFIG_JFFS_PROC_FS
-	/* Set up the jffs proc file system.  */
-	if (jffs_register_jffs_proc_dir(MINOR(sb->s_dev), c) < 0) {
-		printk(KERN_WARNING "JFFS: Failed to initialize the JFFS "
-			"proc file system for device %s.\n",
-			sb->s_id);
-	}
-#endif
-
-	/* Set the Garbage Collection thresholds */
-
-	/* GC if free space goes below 5% of the total size */
-	c->gc_minfree_threshold = c->fmc->flash_size / 20;
-
-	if (c->gc_minfree_threshold < c->fmc->sector_size)
-		c->gc_minfree_threshold = c->fmc->sector_size;
-
-	/* GC if dirty space exceeds 33% of the total size. */
-	c->gc_maxdirty_threshold = c->fmc->flash_size / 3;
-
-	if (c->gc_maxdirty_threshold < c->fmc->sector_size)
-		c->gc_maxdirty_threshold = c->fmc->sector_size;
-
-
-	c->thread_pid = kernel_thread (jffs_garbage_collect_thread, 
-				        (void *) c, 
-				        CLONE_KERNEL);
-	D1(printk(KERN_NOTICE "JFFS: GC thread pid=%d.\n", (int) c->thread_pid));
-
-	D1(printk(KERN_NOTICE "JFFS: Successfully mounted device %s.\n",
-	       sb->s_id));
-	return 0;
-
-jffs_sb_err3:
-	iput(root_inode);
-jffs_sb_err2:
-	jffs_cleanup_control((struct jffs_control *)sb->s_fs_info);
-jffs_sb_err1:
-	printk(KERN_WARNING "JFFS: Failed to mount device %s.\n",
-	       sb->s_id);
-	return -EINVAL;
-}
-
-
-/* This function is called when the file system is umounted.  */
-static void
-jffs_put_super(struct super_block *sb)
-{
-	struct jffs_control *c = (struct jffs_control *) sb->s_fs_info;
-
-	D2(printk("jffs_put_super()\n"));
-
-#ifdef CONFIG_JFFS_PROC_FS
-	jffs_unregister_jffs_proc_dir(c);
-#endif
-
-	if (c->gc_task) {
-		D1(printk (KERN_NOTICE "jffs_put_super(): Telling gc thread to die.\n"));
-		send_sig(SIGKILL, c->gc_task, 1);
-	}
-	wait_for_completion(&c->gc_thread_comp);
-
-	D1(printk (KERN_NOTICE "jffs_put_super(): Successfully waited on thread.\n"));
-
-	jffs_cleanup_control((struct jffs_control *)sb->s_fs_info);
-	D1(printk(KERN_NOTICE "JFFS: Successfully unmounted device %s.\n",
-	       sb->s_id));
-}
-
-
-/* This function is called when user commands like chmod, chgrp and
-   chown are executed. System calls like trunc() results in a call
-   to this function.  */
-static int
-jffs_setattr(struct dentry *dentry, struct iattr *iattr)
-{
-	struct inode *inode = dentry->d_inode;
-	struct jffs_raw_inode raw_inode;
-	struct jffs_control *c;
-	struct jffs_fmcontrol *fmc;
-	struct jffs_file *f;
-	struct jffs_node *new_node;
-	int update_all;
-	int res = 0;
-	int recoverable = 0;
-
-	lock_kernel();
-
-	if ((res = inode_change_ok(inode, iattr))) 
-		goto out;
-
-	c = (struct jffs_control *)inode->i_sb->s_fs_info;
-	fmc = c->fmc;
-
-	D3(printk (KERN_NOTICE "notify_change(): down biglock\n"));
-	mutex_lock(&fmc->biglock);
-
-	f = jffs_find_file(c, inode->i_ino);
-
-	ASSERT(if (!f) {
-		printk("jffs_setattr(): Invalid inode number: %lu\n",
-		       inode->i_ino);
-		D3(printk (KERN_NOTICE "notify_change(): up biglock\n"));
-		mutex_unlock(&fmc->biglock);
-		res = -EINVAL;
-		goto out;
-	});
-
-	D1(printk("***jffs_setattr(): file: \"%s\", ino: %u\n",
-		  f->name, f->ino));
-
-	update_all = iattr->ia_valid & ATTR_FORCE;
-
-	if ( (update_all || iattr->ia_valid & ATTR_SIZE)
-	     && (iattr->ia_size + 128 < f->size) ) {
-		/* We're shrinking the file by more than 128 bytes.
-		   We'll be able to GC and recover this space, so
-		   allow it to go into the reserved space. */
-		recoverable = 1;
-        }
-
-	if (!(new_node = jffs_alloc_node())) {
-		D(printk("jffs_setattr(): Allocation failed!\n"));
-		D3(printk (KERN_NOTICE "notify_change(): up biglock\n"));
-		mutex_unlock(&fmc->biglock);
-		res = -ENOMEM;
-		goto out;
-	}
-
-	new_node->data_offset = 0;
-	new_node->removed_size = 0;
-	raw_inode.magic = JFFS_MAGIC_BITMASK;
-	raw_inode.ino = f->ino;
-	raw_inode.pino = f->pino;
-	raw_inode.mode = f->mode;
-	raw_inode.uid = f->uid;
-	raw_inode.gid = f->gid;
-	raw_inode.atime = f->atime;
-	raw_inode.mtime = f->mtime;
-	raw_inode.ctime = f->ctime;
-	raw_inode.dsize = 0;
-	raw_inode.offset = 0;
-	raw_inode.rsize = 0;
-	raw_inode.dsize = 0;
-	raw_inode.nsize = f->nsize;
-	raw_inode.nlink = f->nlink;
-	raw_inode.spare = 0;
-	raw_inode.rename = 0;
-	raw_inode.deleted = 0;
-
-	if (update_all || iattr->ia_valid & ATTR_MODE) {
-		raw_inode.mode = iattr->ia_mode;
-		inode->i_mode = iattr->ia_mode;
-	}
-	if (update_all || iattr->ia_valid & ATTR_UID) {
-		raw_inode.uid = iattr->ia_uid;
-		inode->i_uid = iattr->ia_uid;
-	}
-	if (update_all || iattr->ia_valid & ATTR_GID) {
-		raw_inode.gid = iattr->ia_gid;
-		inode->i_gid = iattr->ia_gid;
-	}
-	if (update_all || iattr->ia_valid & ATTR_SIZE) {
-		int len;
-		D1(printk("jffs_notify_change(): Changing size "
-			  "to %lu bytes!\n", (long)iattr->ia_size));
-		raw_inode.offset = iattr->ia_size;
-
-		/* Calculate how many bytes need to be removed from
-		   the end.  */
-		if (f->size < iattr->ia_size) {
-			len = 0;
-		}
-		else {
-			len = f->size - iattr->ia_size;
-		}
-
-		raw_inode.rsize = len;
-
-		/* The updated node will be a removal node, with
-		   base at the new size and size of the nbr of bytes
-		   to be removed.  */
-		new_node->data_offset = iattr->ia_size;
-		new_node->removed_size = len;
-		inode->i_size = iattr->ia_size;
-		inode->i_blocks = (inode->i_size + 511) >> 9;
-
-		if (len) {
-			invalidate_mapping_pages(inode->i_mapping, 0, -1);
-		}
-		inode->i_ctime = CURRENT_TIME_SEC;
-		inode->i_mtime = inode->i_ctime;
-	}
-	if (update_all || iattr->ia_valid & ATTR_ATIME) {
-		raw_inode.atime = iattr->ia_atime.tv_sec;
-		inode->i_atime = iattr->ia_atime;
-	}
-	if (update_all || iattr->ia_valid & ATTR_MTIME) {
-		raw_inode.mtime = iattr->ia_mtime.tv_sec;
-		inode->i_mtime = iattr->ia_mtime;
-	}
-	if (update_all || iattr->ia_valid & ATTR_CTIME) {
-		raw_inode.ctime = iattr->ia_ctime.tv_sec;
-		inode->i_ctime = iattr->ia_ctime;
-	}
-
-	/* Write this node to the flash.  */
-	if ((res = jffs_write_node(c, new_node, &raw_inode, f->name, NULL, recoverable, f)) < 0) {
-		D(printk("jffs_notify_change(): The write failed!\n"));
-		jffs_free_node(new_node);
-		D3(printk (KERN_NOTICE "n_c(): up biglock\n"));
-		mutex_unlock(&c->fmc->biglock);
-		goto out;
-	}
-
-	jffs_insert_node(c, f, &raw_inode, NULL, new_node);
-
-	mark_inode_dirty(inode);
-	D3(printk (KERN_NOTICE "n_c(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-out:
-	unlock_kernel();
-	return res;
-} /* jffs_notify_change()  */
-
-
-static struct inode *
-jffs_new_inode(const struct inode * dir, struct jffs_raw_inode *raw_inode,
-	       int * err)
-{
-	struct super_block * sb;
-	struct inode * inode;
-	struct jffs_control *c;
-	struct jffs_file *f;
-
-	sb = dir->i_sb;
-	inode = new_inode(sb);
-	if (!inode) {
-		*err = -ENOMEM;
-		return NULL;
-	}
-
-	c = (struct jffs_control *)sb->s_fs_info;
-
-	inode->i_ino = raw_inode->ino;
-	inode->i_mode = raw_inode->mode;
-	inode->i_nlink = raw_inode->nlink;
-	inode->i_uid = raw_inode->uid;
-	inode->i_gid = raw_inode->gid;
-	inode->i_size = raw_inode->dsize;
-	inode->i_atime.tv_sec = raw_inode->atime;
-	inode->i_mtime.tv_sec = raw_inode->mtime;
-	inode->i_ctime.tv_sec = raw_inode->ctime;
-	inode->i_ctime.tv_nsec = 0;
-	inode->i_mtime.tv_nsec = 0;
-	inode->i_atime.tv_nsec = 0;
-	inode->i_blocks = (inode->i_size + 511) >> 9;
-
-	f = jffs_find_file(c, raw_inode->ino);
-
-	inode->i_private = (void *)f;
-	insert_inode_hash(inode);
-
-	return inode;
-}
-
-/* Get statistics of the file system.  */
-static int
-jffs_statfs(struct dentry *dentry, struct kstatfs *buf)
-{
-	struct jffs_control *c = (struct jffs_control *) dentry->d_sb->s_fs_info;
-	struct jffs_fmcontrol *fmc;
-
-	lock_kernel();
-
-	fmc = c->fmc;
-
-	D2(printk("jffs_statfs()\n"));
-
-	buf->f_type = JFFS_MAGIC_SB_BITMASK;
-	buf->f_bsize = PAGE_CACHE_SIZE;
-	buf->f_blocks = (fmc->flash_size / PAGE_CACHE_SIZE)
-		       - (fmc->min_free_size / PAGE_CACHE_SIZE);
-	buf->f_bfree = (jffs_free_size1(fmc) + jffs_free_size2(fmc) +
-		       fmc->dirty_size - fmc->min_free_size)
-			       >> PAGE_CACHE_SHIFT;
-	buf->f_bavail = buf->f_bfree;
-
-	/* Find out how many files there are in the filesystem.  */
-	buf->f_files = jffs_foreach_file(c, jffs_file_count);
-	buf->f_ffree = buf->f_bfree;
-	/* buf->f_fsid = 0; */
-	buf->f_namelen = JFFS_MAX_NAME_LEN;
-
-	unlock_kernel();
-
-	return 0;
-}
-
-
-/* Rename a file.  */
-static int
-jffs_rename(struct inode *old_dir, struct dentry *old_dentry,
-	    struct inode *new_dir, struct dentry *new_dentry)
-{
-	struct jffs_raw_inode raw_inode;
-	struct jffs_control *c;
-	struct jffs_file *old_dir_f;
-	struct jffs_file *new_dir_f;
-	struct jffs_file *del_f;
-	struct jffs_file *f;
-	struct jffs_node *node;
-	struct inode *inode;
-	int result = 0;
-	__u32 rename_data = 0;
-
-	D2(printk("***jffs_rename()\n"));
-
-	D(printk("jffs_rename(): old_dir: 0x%p, old name: 0x%p, "
-		 "new_dir: 0x%p, new name: 0x%p\n",
-		 old_dir, old_dentry->d_name.name,
-		 new_dir, new_dentry->d_name.name));
-
-	lock_kernel();
-	c = (struct jffs_control *)old_dir->i_sb->s_fs_info;
-	ASSERT(if (!c) {
-		printk(KERN_ERR "jffs_rename(): The old_dir inode "
-		       "didn't have a reference to a jffs_file struct\n");
-		unlock_kernel();
-		return -EIO;
-	});
-
-	result = -ENOTDIR;
-	if (!(old_dir_f = old_dir->i_private)) {
-		D(printk("jffs_rename(): Old dir invalid.\n"));
-		goto jffs_rename_end;
-	}
-
-	/* Try to find the file to move.  */
-	result = -ENOENT;
-	if (!(f = jffs_find_child(old_dir_f, old_dentry->d_name.name,
-				  old_dentry->d_name.len))) {
-		goto jffs_rename_end;
-	}
-
-	/* Find the new directory.  */
-	result = -ENOTDIR;
-	if (!(new_dir_f = new_dir->i_private)) {
-		D(printk("jffs_rename(): New dir invalid.\n"));
-		goto jffs_rename_end;
-	}
-	D3(printk (KERN_NOTICE "rename(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-	/* Create a node and initialize as much as needed.  */
-	result = -ENOMEM;
-	if (!(node = jffs_alloc_node())) {
-		D(printk("jffs_rename(): Allocation failed: node == 0\n"));
-		goto jffs_rename_end;
-	}
-	node->data_offset = 0;
-	node->removed_size = 0;
-
-	/* Initialize the raw inode.  */
-	raw_inode.magic = JFFS_MAGIC_BITMASK;
-	raw_inode.ino = f->ino;
-	raw_inode.pino = new_dir_f->ino;
-/*  	raw_inode.version = f->highest_version + 1; */
-	raw_inode.mode = f->mode;
-	raw_inode.uid = current->fsuid;
-	raw_inode.gid = current->fsgid;
-#if 0
-	raw_inode.uid = f->uid;
-	raw_inode.gid = f->gid;
-#endif
-	raw_inode.atime = get_seconds();
-	raw_inode.mtime = raw_inode.atime;
-	raw_inode.ctime = f->ctime;
-	raw_inode.offset = 0;
-	raw_inode.dsize = 0;
-	raw_inode.rsize = 0;
-	raw_inode.nsize = new_dentry->d_name.len;
-	raw_inode.nlink = f->nlink;
-	raw_inode.spare = 0;
-	raw_inode.rename = 0;
-	raw_inode.deleted = 0;
-
-	/* See if there already exists a file with the same name as
-	   new_name.  */
-	if ((del_f = jffs_find_child(new_dir_f, new_dentry->d_name.name,
-				     new_dentry->d_name.len))) {
-		raw_inode.rename = 1;
-		raw_inode.dsize = sizeof(__u32);
-		rename_data = del_f->ino;
-	}
-
-	/* Write the new node to the flash memory.  */
-	if ((result = jffs_write_node(c, node, &raw_inode,
-				      new_dentry->d_name.name,
-				      (unsigned char*)&rename_data, 0, f)) < 0) {
-		D(printk("jffs_rename(): Failed to write node to flash.\n"));
-		jffs_free_node(node);
-		goto jffs_rename_end;
-	}
-	raw_inode.dsize = 0;
-
-	if (raw_inode.rename) {
-		/* The file with the same name must be deleted.  */
-		//FIXME deadlock	        down(&c->fmc->gclock);
-		if ((result = jffs_remove(new_dir, new_dentry,
-					  del_f->mode)) < 0) {
-			/* This is really bad.  */
-			printk(KERN_ERR "JFFS: An error occurred in "
-			       "rename().\n");
-		}
-		//		up(&c->fmc->gclock);
-	}
-
-	if (old_dir_f != new_dir_f) {
-		/* Remove the file from its old position in the
-		   filesystem tree.  */
-		jffs_unlink_file_from_tree(f);
-	}
-
-	/* Insert the new node into the file system.  */
-	if ((result = jffs_insert_node(c, f, &raw_inode,
-				       new_dentry->d_name.name, node)) < 0) {
-		D(printk(KERN_ERR "jffs_rename(): jffs_insert_node() "
-			 "failed!\n"));
-	}
-
-	if (old_dir_f != new_dir_f) {
-		/* Insert the file to its new position in the
-		   file system.  */
-		jffs_insert_file_into_tree(f);
-	}
-
-	/* This is a kind of update of the inode we're about to make
-	   here.  This is what they do in ext2fs.  Kind of.  */
-	if ((inode = iget(new_dir->i_sb, f->ino))) {
-		inode->i_ctime = CURRENT_TIME_SEC;
-		mark_inode_dirty(inode);
-		iput(inode);
-	}
-
-jffs_rename_end:
-	D3(printk (KERN_NOTICE "rename(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	unlock_kernel();
-	return result;
-} /* jffs_rename()  */
-
-
-/* Read the contents of a directory.  Used by programs like `ls'
-   for instance.  */
-static int
-jffs_readdir(struct file *filp, void *dirent, filldir_t filldir)
-{
-	struct jffs_file *f;
-	struct dentry *dentry = filp->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
-	struct jffs_control *c = (struct jffs_control *)inode->i_sb->s_fs_info;
-	int j;
-	int ddino;
-	lock_kernel();
-	D3(printk (KERN_NOTICE "readdir(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-
-	D2(printk("jffs_readdir(): inode: 0x%p, filp: 0x%p\n", inode, filp));
-	if (filp->f_pos == 0) {
-		D3(printk("jffs_readdir(): \".\" %lu\n", inode->i_ino));
-		if (filldir(dirent, ".", 1, filp->f_pos, inode->i_ino, DT_DIR) < 0) {
-			D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
-			mutex_unlock(&c->fmc->biglock);
-			unlock_kernel();
-			return 0;
-		}
-		filp->f_pos = 1;
-	}
-	if (filp->f_pos == 1) {
-		if (inode->i_ino == JFFS_MIN_INO) {
-			ddino = JFFS_MIN_INO;
-		}
-		else {
-			ddino = ((struct jffs_file *)
-				 inode->i_private)->pino;
-		}
-		D3(printk("jffs_readdir(): \"..\" %u\n", ddino));
-		if (filldir(dirent, "..", 2, filp->f_pos, ddino, DT_DIR) < 0) {
-			D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
-			mutex_unlock(&c->fmc->biglock);
-			unlock_kernel();
-			return 0;
-		}
-		filp->f_pos++;
-	}
-	f = ((struct jffs_file *)inode->i_private)->children;
-
-	j = 2;
-	while(f && (f->deleted || j++ < filp->f_pos )) {
-		f = f->sibling_next;
-	}
-
-	while (f) {
-		D3(printk("jffs_readdir(): \"%s\" ino: %u\n",
-			  (f->name ? f->name : ""), f->ino));
-		if (filldir(dirent, f->name, f->nsize,
-			    filp->f_pos , f->ino, DT_UNKNOWN) < 0) {
-		        D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
-			mutex_unlock(&c->fmc->biglock);
-			unlock_kernel();
-			return 0;
-		}
-		filp->f_pos++;
-		do {
-			f = f->sibling_next;
-		} while(f && f->deleted);
-	}
-	D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	unlock_kernel();
-	return filp->f_pos;
-} /* jffs_readdir()  */
-
-
-/* Find a file in a directory. If the file exists, return its
-   corresponding dentry.  */
-static struct dentry *
-jffs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
-{
-	struct jffs_file *d;
-	struct jffs_file *f;
-	struct jffs_control *c = (struct jffs_control *)dir->i_sb->s_fs_info;
-	int len;
-	int r = 0;
-	const char *name;
-	struct inode *inode = NULL;
-
-	len = dentry->d_name.len;
-	name = dentry->d_name.name;
-
-	lock_kernel();
-
-	D3({
-		char *s = kmalloc(len + 1, GFP_KERNEL);
-		memcpy(s, name, len);
-		s[len] = '\0';
-		printk("jffs_lookup(): dir: 0x%p, name: \"%s\"\n", dir, s);
-		kfree(s);
-	});
-
-	D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-
-	r = -ENAMETOOLONG;
-	if (len > JFFS_MAX_NAME_LEN) {
-		goto jffs_lookup_end;
-	}
-
-	r = -EACCES;
-	if (!(d = (struct jffs_file *)dir->i_private)) {
-		D(printk("jffs_lookup(): No such inode! (%lu)\n",
-			 dir->i_ino));
-		goto jffs_lookup_end;
-	}
-
-	/* Get the corresponding inode to the file.  */
-
-	/* iget calls jffs_read_inode, so we need to drop the biglock
-           before calling iget.  Unfortunately, the GC has a tendency
-           to sneak in here, because iget sometimes calls schedule ().
-	*/
-
-	if ((len == 1) && (name[0] == '.')) {
-		D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
-		mutex_unlock(&c->fmc->biglock);
-		if (!(inode = iget(dir->i_sb, d->ino))) {
-			D(printk("jffs_lookup(): . iget() ==> NULL\n"));
-			goto jffs_lookup_end_no_biglock;
-		}
-		D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
-		mutex_lock(&c->fmc->biglock);
-	} else if ((len == 2) && (name[0] == '.') && (name[1] == '.')) {
-	        D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
-		mutex_unlock(&c->fmc->biglock);
- 		if (!(inode = iget(dir->i_sb, d->pino))) {
-			D(printk("jffs_lookup(): .. iget() ==> NULL\n"));
-			goto jffs_lookup_end_no_biglock;
-		}
-		D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
-		mutex_lock(&c->fmc->biglock);
-	} else if ((f = jffs_find_child(d, name, len))) {
-	        D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
-		mutex_unlock(&c->fmc->biglock);
-		if (!(inode = iget(dir->i_sb, f->ino))) {
-			D(printk("jffs_lookup(): iget() ==> NULL\n"));
-			goto jffs_lookup_end_no_biglock;
-		}
-		D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
-		mutex_lock(&c->fmc->biglock);
-	} else {
-		D3(printk("jffs_lookup(): Couldn't find the file. "
-			  "f = 0x%p, name = \"%s\", d = 0x%p, d->ino = %u\n",
-			  f, name, d, d->ino));
-		inode = NULL;
-	}
-
-	d_add(dentry, inode);
-	D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	unlock_kernel();
-	return NULL;
-
-jffs_lookup_end:
-	D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-
-jffs_lookup_end_no_biglock:
-	unlock_kernel();
-	return ERR_PTR(r);
-} /* jffs_lookup()  */
-
-
-/* Try to read a page of data from a file.  */
-static int
-jffs_do_readpage_nolock(struct file *file, struct page *page)
-{
-	void *buf;
-	unsigned long read_len;
-	int result;
-	struct inode *inode = (struct inode*)page->mapping->host;
-	struct jffs_file *f = (struct jffs_file *)inode->i_private;
-	struct jffs_control *c = (struct jffs_control *)inode->i_sb->s_fs_info;
-	int r;
-	loff_t offset;
-
-	D2(printk("***jffs_readpage(): file = \"%s\", page->index = %lu\n",
-		  (f->name ? f->name : ""), (long)page->index));
-
-	get_page(page);
-	/* Don't SetPageLocked(page), should be locked already */
-	ClearPageUptodate(page);
-	ClearPageError(page);
-
-	D3(printk (KERN_NOTICE "readpage(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-
-	read_len = 0;
-	result = 0;
-	offset = page_offset(page);
-
-	kmap(page);
-	buf = page_address(page);
-	if (offset < inode->i_size) {
-		read_len = min_t(long, inode->i_size - offset, PAGE_SIZE);
-		r = jffs_read_data(f, buf, offset, read_len);
-		if (r != read_len) {
-			result = -EIO;
-			D(
-			        printk("***jffs_readpage(): Read error! "
-				       "Wanted to read %lu bytes but only "
-				       "read %d bytes.\n", read_len, r);
-			  );
-		}
-
-	}
-
-	/* This handles the case of partial or no read in above */
-	if(read_len < PAGE_SIZE)
-	        memset(buf + read_len, 0, PAGE_SIZE - read_len);
-	flush_dcache_page(page);
-	kunmap(page);
-
-	D3(printk (KERN_NOTICE "readpage(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-
-	if (result) {
-	        SetPageError(page);
-	}else {
-	        SetPageUptodate(page);	        
-	}
-
-	page_cache_release(page);
-
-	D3(printk("jffs_readpage(): Leaving...\n"));
-
-	return result;
-} /* jffs_do_readpage_nolock()  */
-
-static int jffs_readpage(struct file *file, struct page *page)
-{
-	int ret = jffs_do_readpage_nolock(file, page);
-	unlock_page(page);
-	return ret;
-}
-
-/* Create a new directory.  */
-static int
-jffs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-{
-	struct jffs_raw_inode raw_inode;
-	struct jffs_control *c;
-	struct jffs_node *node;
-	struct jffs_file *dir_f;
-	struct inode *inode;
-	int dir_mode;
-	int result = 0;
-	int err;
-
-	D1({
-	        int len = dentry->d_name.len;
-		char *_name = kmalloc(len + 1, GFP_KERNEL);
-		memcpy(_name, dentry->d_name.name, len);
-		_name[len] = '\0';
-		printk("***jffs_mkdir(): dir = 0x%p, name = \"%s\", "
-		       "len = %d, mode = 0x%08x\n", dir, _name, len, mode);
-		kfree(_name);
-	});
-
-	lock_kernel();
-	dir_f = dir->i_private;
-
-	ASSERT(if (!dir_f) {
-		printk(KERN_ERR "jffs_mkdir(): No reference to a "
-		       "jffs_file struct in inode.\n");
-		unlock_kernel();
-		return -EIO;
-	});
-
-	c = dir_f->c;
-	D3(printk (KERN_NOTICE "mkdir(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-
-	dir_mode = S_IFDIR | (mode & (S_IRWXUGO|S_ISVTX)
-			      & ~current->fs->umask);
-	if (dir->i_mode & S_ISGID) {
-		dir_mode |= S_ISGID;
-	}
-
-	/* Create a node and initialize it as much as needed.  */
-	if (!(node = jffs_alloc_node())) {
-		D(printk("jffs_mkdir(): Allocation failed: node == 0\n"));
-		result = -ENOMEM;
-		goto jffs_mkdir_end;
-	}
-	node->data_offset = 0;
-	node->removed_size = 0;
-
-	/* Initialize the raw inode.  */
-	raw_inode.magic = JFFS_MAGIC_BITMASK;
-	raw_inode.ino = c->next_ino++;
-	raw_inode.pino = dir_f->ino;
-	raw_inode.version = 1;
-	raw_inode.mode = dir_mode;
-	raw_inode.uid = current->fsuid;
-	raw_inode.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
-	/*	raw_inode.gid = current->fsgid; */
-	raw_inode.atime = get_seconds();
-	raw_inode.mtime = raw_inode.atime;
-	raw_inode.ctime = raw_inode.atime;
-	raw_inode.offset = 0;
-	raw_inode.dsize = 0;
-	raw_inode.rsize = 0;
-	raw_inode.nsize = dentry->d_name.len;
-	raw_inode.nlink = 1;
-	raw_inode.spare = 0;
-	raw_inode.rename = 0;
-	raw_inode.deleted = 0;
-
-	/* Write the new node to the flash.  */
-	if ((result = jffs_write_node(c, node, &raw_inode,
-				     dentry->d_name.name, NULL, 0, NULL)) < 0) {
-		D(printk("jffs_mkdir(): jffs_write_node() failed.\n"));
-		jffs_free_node(node);
-		goto jffs_mkdir_end;
-	}
-
-	/* Insert the new node into the file system.  */
-	if ((result = jffs_insert_node(c, NULL, &raw_inode, dentry->d_name.name,
-				       node)) < 0) {
-		goto jffs_mkdir_end;
-	}
-
-	inode = jffs_new_inode(dir, &raw_inode, &err);
-	if (inode == NULL) {
-		result = err;
-		goto jffs_mkdir_end;
-	}
-
-	inode->i_op = &jffs_dir_inode_operations;
-	inode->i_fop = &jffs_dir_operations;
-
-	mark_inode_dirty(dir);
-	d_instantiate(dentry, inode);
-
-	result = 0;
-jffs_mkdir_end:
-	D3(printk (KERN_NOTICE "mkdir(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	unlock_kernel();
-	return result;
-} /* jffs_mkdir()  */
-
-
-/* Remove a directory.  */
-static int
-jffs_rmdir(struct inode *dir, struct dentry *dentry)
-{
-	struct jffs_control *c = (struct jffs_control *)dir->i_sb->s_fs_info;
-	int ret;
-	D3(printk("***jffs_rmdir()\n"));
-	D3(printk (KERN_NOTICE "rmdir(): down biglock\n"));
-	lock_kernel();
-	mutex_lock(&c->fmc->biglock);
-	ret = jffs_remove(dir, dentry, S_IFDIR);
-	D3(printk (KERN_NOTICE "rmdir(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	unlock_kernel();
-	return ret;
-}
-
-
-/* Remove any kind of file except for directories.  */
-static int
-jffs_unlink(struct inode *dir, struct dentry *dentry)
-{
-	struct jffs_control *c = (struct jffs_control *)dir->i_sb->s_fs_info;
-	int ret; 
-
-	lock_kernel();
-	D3(printk("***jffs_unlink()\n"));
-	D3(printk (KERN_NOTICE "unlink(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-	ret = jffs_remove(dir, dentry, 0);
-	D3(printk (KERN_NOTICE "unlink(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	unlock_kernel();
-	return ret;
-}
-
-
-/* Remove a JFFS entry, i.e. plain files, directories, etc.  Here we
-   shouldn't test for free space on the device.  */
-static int
-jffs_remove(struct inode *dir, struct dentry *dentry, int type)
-{
-	struct jffs_raw_inode raw_inode;
-	struct jffs_control *c;
-	struct jffs_file *dir_f; /* The file-to-remove's parent.  */
-	struct jffs_file *del_f; /* The file to remove.  */
-	struct jffs_node *del_node;
-	struct inode *inode = NULL;
-	int result = 0;
-
-	D1({
-		int len = dentry->d_name.len;
-		const char *name = dentry->d_name.name;
-		char *_name = kmalloc(len + 1, GFP_KERNEL);
-		memcpy(_name, name, len);
-		_name[len] = '\0';
-		printk("***jffs_remove(): file = \"%s\", ino = %ld\n", _name, dentry->d_inode->i_ino);
-		kfree(_name);
-	});
-
-	dir_f = dir->i_private;
-	c = dir_f->c;
-
-	result = -ENOENT;
-	if (!(del_f = jffs_find_child(dir_f, dentry->d_name.name,
-				      dentry->d_name.len))) {
-		D(printk("jffs_remove(): jffs_find_child() failed.\n"));
-		goto jffs_remove_end;
-	}
-
-	if (S_ISDIR(type)) {
-		struct jffs_file *child = del_f->children;
-		while(child) {
-			if( !child->deleted ) {
-				result = -ENOTEMPTY;
-				goto jffs_remove_end;
-			}
-			child = child->sibling_next;
-		}
-	}            
-	else if (S_ISDIR(del_f->mode)) {
-		D(printk("jffs_remove(): node is a directory "
-			 "but it shouldn't be.\n"));
-		result = -EPERM;
-		goto jffs_remove_end;
-	}
-
-	inode = dentry->d_inode;
-
-	result = -EIO;
-	if (del_f->ino != inode->i_ino)
-		goto jffs_remove_end;
-
-	if (!inode->i_nlink) {
-		printk("Deleting nonexistent file inode: %lu, nlink: %d\n",
-		       inode->i_ino, inode->i_nlink);
-		inode->i_nlink=1;
-	}
-
-	/* Create a node for the deletion.  */
-	result = -ENOMEM;
-	if (!(del_node = jffs_alloc_node())) {
-		D(printk("jffs_remove(): Allocation failed!\n"));
-		goto jffs_remove_end;
-	}
-	del_node->data_offset = 0;
-	del_node->removed_size = 0;
-
-	/* Initialize the raw inode.  */
-	raw_inode.magic = JFFS_MAGIC_BITMASK;
-	raw_inode.ino = del_f->ino;
-	raw_inode.pino = del_f->pino;
-/*  	raw_inode.version = del_f->highest_version + 1; */
-	raw_inode.mode = del_f->mode;
-	raw_inode.uid = current->fsuid;
-	raw_inode.gid = current->fsgid;
-	raw_inode.atime = get_seconds();
-	raw_inode.mtime = del_f->mtime;
-	raw_inode.ctime = raw_inode.atime;
-	raw_inode.offset = 0;
-	raw_inode.dsize = 0;
-	raw_inode.rsize = 0;
-	raw_inode.nsize = 0;
-	raw_inode.nlink = del_f->nlink;
-	raw_inode.spare = 0;
-	raw_inode.rename = 0;
-	raw_inode.deleted = 1;
-
-	/* Write the new node to the flash memory.  */
-	if (jffs_write_node(c, del_node, &raw_inode, NULL, NULL, 1, del_f) < 0) {
-		jffs_free_node(del_node);
-		result = -EIO;
-		goto jffs_remove_end;
-	}
-
-	/* Update the file.  This operation will make the file disappear
-	   from the in-memory file system structures.  */
-	jffs_insert_node(c, del_f, &raw_inode, NULL, del_node);
-
-	dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
-	mark_inode_dirty(dir);
-	inode->i_ctime = dir->i_ctime;
-	inode_dec_link_count(inode);
-
-	d_delete(dentry);	/* This also frees the inode */
-
-	result = 0;
-jffs_remove_end:
-	return result;
-} /* jffs_remove()  */
-
-
-static int
-jffs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
-{
-	struct jffs_raw_inode raw_inode;
-	struct jffs_file *dir_f;
-	struct jffs_node *node = NULL;
-	struct jffs_control *c;
-	struct inode *inode;
-	int result = 0;
-	u16 data = old_encode_dev(rdev);
-	int err;
-
-	D1(printk("***jffs_mknod()\n"));
-
-	if (!old_valid_dev(rdev))
-		return -EINVAL;
-	lock_kernel();
-	dir_f = dir->i_private;
-	c = dir_f->c;
-
-	D3(printk (KERN_NOTICE "mknod(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-
-	/* Create and initialize a new node.  */
-	if (!(node = jffs_alloc_node())) {
-		D(printk("jffs_mknod(): Allocation failed!\n"));
-		result = -ENOMEM;
-		goto jffs_mknod_err;
-	}
-	node->data_offset = 0;
-	node->removed_size = 0;
-
-	/* Initialize the raw inode.  */
-	raw_inode.magic = JFFS_MAGIC_BITMASK;
-	raw_inode.ino = c->next_ino++;
-	raw_inode.pino = dir_f->ino;
-	raw_inode.version = 1;
-	raw_inode.mode = mode;
-	raw_inode.uid = current->fsuid;
-	raw_inode.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
-	/*	raw_inode.gid = current->fsgid; */
-	raw_inode.atime = get_seconds();
-	raw_inode.mtime = raw_inode.atime;
-	raw_inode.ctime = raw_inode.atime;
-	raw_inode.offset = 0;
-	raw_inode.dsize = 2;
-	raw_inode.rsize = 0;
-	raw_inode.nsize = dentry->d_name.len;
-	raw_inode.nlink = 1;
-	raw_inode.spare = 0;
-	raw_inode.rename = 0;
-	raw_inode.deleted = 0;
-
-	/* Write the new node to the flash.  */
-	if ((err = jffs_write_node(c, node, &raw_inode, dentry->d_name.name,
-				   (unsigned char *)&data, 0, NULL)) < 0) {
-		D(printk("jffs_mknod(): jffs_write_node() failed.\n"));
-		result = err;
-		goto jffs_mknod_err;
-	}
-
-	/* Insert the new node into the file system.  */
-	if ((err = jffs_insert_node(c, NULL, &raw_inode, dentry->d_name.name,
-				    node)) < 0) {
-		result = err;
-		goto jffs_mknod_end;
-	}
-
-	inode = jffs_new_inode(dir, &raw_inode, &err);
-	if (inode == NULL) {
-		result = err;
-		goto jffs_mknod_end;
-	}
-
-	init_special_inode(inode, mode, rdev);
-
-	d_instantiate(dentry, inode);
-
-	goto jffs_mknod_end;
-
-jffs_mknod_err:
-	if (node) {
-		jffs_free_node(node);
-	}
-
-jffs_mknod_end:
-	D3(printk (KERN_NOTICE "mknod(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	unlock_kernel();
-	return result;
-} /* jffs_mknod()  */
-
-
-static int
-jffs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
-{
-	struct jffs_raw_inode raw_inode;
-	struct jffs_control *c;
-	struct jffs_file *dir_f;
-	struct jffs_node *node;
-	struct inode *inode;
-
-	int symname_len = strlen(symname);
-	int err;
-
-	lock_kernel();
-	D1({
-		int len = dentry->d_name.len; 
-		char *_name = kmalloc(len + 1, GFP_KERNEL);
-		char *_symname = kmalloc(symname_len + 1, GFP_KERNEL);
-		memcpy(_name, dentry->d_name.name, len);
-		_name[len] = '\0';
-		memcpy(_symname, symname, symname_len);
-		_symname[symname_len] = '\0';
-		printk("***jffs_symlink(): dir = 0x%p, "
-		       "dentry->dname.name = \"%s\", "
-		       "symname = \"%s\"\n", dir, _name, _symname);
-		kfree(_name);
-		kfree(_symname);
-	});
-
-	dir_f = dir->i_private;
-	ASSERT(if (!dir_f) {
-		printk(KERN_ERR "jffs_symlink(): No reference to a "
-		       "jffs_file struct in inode.\n");
-		unlock_kernel();
-		return -EIO;
-	});
-
-	c = dir_f->c;
-
-	/* Create a node and initialize it as much as needed.  */
-	if (!(node = jffs_alloc_node())) {
-		D(printk("jffs_symlink(): Allocation failed: node = NULL\n"));
-		unlock_kernel();
-		return -ENOMEM;
-	}
-	D3(printk (KERN_NOTICE "symlink(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-
-	node->data_offset = 0;
-	node->removed_size = 0;
-
-	/* Initialize the raw inode.  */
-	raw_inode.magic = JFFS_MAGIC_BITMASK;
-	raw_inode.ino = c->next_ino++;
-	raw_inode.pino = dir_f->ino;
-	raw_inode.version = 1;
-	raw_inode.mode = S_IFLNK | S_IRWXUGO;
-	raw_inode.uid = current->fsuid;
-	raw_inode.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
-	raw_inode.atime = get_seconds();
-	raw_inode.mtime = raw_inode.atime;
-	raw_inode.ctime = raw_inode.atime;
-	raw_inode.offset = 0;
-	raw_inode.dsize = symname_len;
-	raw_inode.rsize = 0;
-	raw_inode.nsize = dentry->d_name.len;
-	raw_inode.nlink = 1;
-	raw_inode.spare = 0;
-	raw_inode.rename = 0;
-	raw_inode.deleted = 0;
-
-	/* Write the new node to the flash.  */
-	if ((err = jffs_write_node(c, node, &raw_inode, dentry->d_name.name,
-				   (const unsigned char *)symname, 0, NULL)) < 0) {
-		D(printk("jffs_symlink(): jffs_write_node() failed.\n"));
-		jffs_free_node(node);
-		goto jffs_symlink_end;
-	}
-
-	/* Insert the new node into the file system.  */
-	if ((err = jffs_insert_node(c, NULL, &raw_inode, dentry->d_name.name,
-				    node)) < 0) {
-		goto jffs_symlink_end;
-	}
-
-	inode = jffs_new_inode(dir, &raw_inode, &err);
-	if (inode == NULL) {
-		goto jffs_symlink_end;
-	}
-	err = 0;
-	inode->i_op = &page_symlink_inode_operations;
-	inode->i_mapping->a_ops = &jffs_address_operations;
-
-	d_instantiate(dentry, inode);
- jffs_symlink_end:
-	D3(printk (KERN_NOTICE "symlink(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	unlock_kernel();
-	return err;
-} /* jffs_symlink()  */
-
-
-/* Create an inode inside a JFFS directory (dir) and return it.
- *
- * By the time this is called, we already have created
- * the directory cache entry for the new file, but it
- * is so far negative - it has no inode.
- *
- * If the create succeeds, we fill in the inode information
- * with d_instantiate().
- */
-static int
-jffs_create(struct inode *dir, struct dentry *dentry, int mode,
-		struct nameidata *nd)
-{
-	struct jffs_raw_inode raw_inode;
-	struct jffs_control *c;
-	struct jffs_node *node;
-	struct jffs_file *dir_f; /* JFFS representation of the directory.  */
-	struct inode *inode;
-	int err;
-
-	lock_kernel();
-	D1({
-		int len = dentry->d_name.len;
-		char *s = kmalloc(len + 1, GFP_KERNEL);
-		memcpy(s, dentry->d_name.name, len);
-		s[len] = '\0';
-		printk("jffs_create(): dir: 0x%p, name: \"%s\"\n", dir, s);
-		kfree(s);
-	});
-
-	dir_f = dir->i_private;
-	ASSERT(if (!dir_f) {
-		printk(KERN_ERR "jffs_create(): No reference to a "
-		       "jffs_file struct in inode.\n");
-		unlock_kernel();
-		return -EIO;
-	});
-
-	c = dir_f->c;
-
-	/* Create a node and initialize as much as needed.  */
-	if (!(node = jffs_alloc_node())) {
-		D(printk("jffs_create(): Allocation failed: node == 0\n"));
-		unlock_kernel();
-		return -ENOMEM;
-	}
-	D3(printk (KERN_NOTICE "create(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-
-	node->data_offset = 0;
-	node->removed_size = 0;
-
-	/* Initialize the raw inode.  */
-	raw_inode.magic = JFFS_MAGIC_BITMASK;
-	raw_inode.ino = c->next_ino++;
-	raw_inode.pino = dir_f->ino;
-	raw_inode.version = 1;
-	raw_inode.mode = mode;
-	raw_inode.uid = current->fsuid;
-	raw_inode.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
-	raw_inode.atime = get_seconds();
-	raw_inode.mtime = raw_inode.atime;
-	raw_inode.ctime = raw_inode.atime;
-	raw_inode.offset = 0;
-	raw_inode.dsize = 0;
-	raw_inode.rsize = 0;
-	raw_inode.nsize = dentry->d_name.len;
-	raw_inode.nlink = 1;
-	raw_inode.spare = 0;
-	raw_inode.rename = 0;
-	raw_inode.deleted = 0;
-
-	/* Write the new node to the flash.  */
-	if ((err = jffs_write_node(c, node, &raw_inode,
-				   dentry->d_name.name, NULL, 0, NULL)) < 0) {
-		D(printk("jffs_create(): jffs_write_node() failed.\n"));
-		jffs_free_node(node);
-		goto jffs_create_end;
-	}
-
-	/* Insert the new node into the file system.  */
-	if ((err = jffs_insert_node(c, NULL, &raw_inode, dentry->d_name.name,
-				    node)) < 0) {
-		goto jffs_create_end;
-	}
-
-	/* Initialize an inode.  */
-	inode = jffs_new_inode(dir, &raw_inode, &err);
-	if (inode == NULL) {
-		goto jffs_create_end;
-	}
-	err = 0;
-	inode->i_op = &jffs_file_inode_operations;
-	inode->i_fop = &jffs_file_operations;
-	inode->i_mapping->a_ops = &jffs_address_operations;
-	inode->i_mapping->nrpages = 0;
-
-	d_instantiate(dentry, inode);
- jffs_create_end:
-	D3(printk (KERN_NOTICE "create(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	unlock_kernel();
-	return err;
-} /* jffs_create()  */
-
-
-/* Write, append or rewrite data to an existing file.  */
-static ssize_t
-jffs_file_write(struct file *filp, const char *buf, size_t count,
-		loff_t *ppos)
-{
-	struct jffs_raw_inode raw_inode;
-	struct jffs_control *c;
-	struct jffs_file *f;
-	struct jffs_node *node;
-	struct dentry *dentry = filp->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
-	int recoverable = 0;
-	size_t written = 0;
-	__u32 thiscount = count;
-	loff_t pos = *ppos;
-	int err;
-
-	inode = filp->f_path.dentry->d_inode;
-
-	D2(printk("***jffs_file_write(): inode: 0x%p (ino: %lu), "
-		  "filp: 0x%p, buf: 0x%p, count: %d\n",
-		  inode, inode->i_ino, filp, buf, count));
-
-#if 0
-	if (inode->i_sb->s_flags & MS_RDONLY) {
-		D(printk("jffs_file_write(): MS_RDONLY\n"));
-		err = -EROFS;
-		goto out_isem;
-	}
-#endif	
-	err = -EINVAL;
-
-	if (!S_ISREG(inode->i_mode)) {
-		D(printk("jffs_file_write(): inode->i_mode == 0x%08x\n",
-				inode->i_mode));
-		goto out_isem;
-	}
-
-	if (!(f = inode->i_private)) {
-		D(printk("jffs_file_write(): inode->i_private = 0x%p\n",
-				inode->i_private));
-		goto out_isem;
-	}
-
-	c = f->c;
-
-	/*
-	 * This will never trigger with sane page sizes.  leave it in
-	 * anyway, since I'm thinking about how to merge larger writes
-	 * (the current idea is to poke a thread that does the actual
-	 * I/O and starts by doing a mutex_lock(&inode->i_mutex).  then we
-	 * would need to get the page cache pages and have a list of
-	 * I/O requests and do write-merging here.
-	 * -- prumpf
-	 */
-	thiscount = min(c->fmc->max_chunk_size - sizeof(struct jffs_raw_inode), count);
-
-	D3(printk (KERN_NOTICE "file_write(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-
-	/* Urgh. POSIX says we can do short writes if we feel like it. 
-	 * In practice, we can't. Nothing will cope. So we loop until
-	 * we're done.
-	 *
-	 * <_Anarchy_> posix and reality are not interconnected on this issue
-	 */
-	while (count) {
-		/* Things are going to be written so we could allocate and
-		   initialize the necessary data structures now.  */
-		if (!(node = jffs_alloc_node())) {
-			D(printk("jffs_file_write(): node == 0\n"));
-			err = -ENOMEM;
-			goto out;
-		}
-
-		node->data_offset = pos;
-		node->removed_size = 0;
-
-		/* Initialize the raw inode.  */
-		raw_inode.magic = JFFS_MAGIC_BITMASK;
-		raw_inode.ino = f->ino;
-		raw_inode.pino = f->pino;
-
-		raw_inode.mode = f->mode;
-
-		raw_inode.uid = f->uid;
-		raw_inode.gid = f->gid;
-		raw_inode.atime = get_seconds();
-		raw_inode.mtime = raw_inode.atime;
-		raw_inode.ctime = f->ctime;
-		raw_inode.offset = pos;
-		raw_inode.dsize = thiscount;
-		raw_inode.rsize = 0;
-		raw_inode.nsize = f->nsize;
-		raw_inode.nlink = f->nlink;
-		raw_inode.spare = 0;
-		raw_inode.rename = 0;
-		raw_inode.deleted = 0;
-
-		if (pos < f->size) {
-			node->removed_size = raw_inode.rsize = min(thiscount, (__u32)(f->size - pos));
-
-			/* If this node is going entirely over the top of old data,
-			   we can allow it to go into the reserved space, because
-			   we know that GC can reclaim the space later.
-			*/
-			if (pos + thiscount < f->size) {
-				/* If all the data we're overwriting are _real_,
-				   not just holes, then:
-				   recoverable = 1;
-				*/
-			}
-		}
-
-		/* Write the new node to the flash.  */
-		/* NOTE: We would be quite happy if jffs_write_node() wrote a
-		   smaller node than we were expecting. There's no need for it
-		   to waste the space at the end of the flash just because it's
-		   a little smaller than what we asked for. But that's a whole
-		   new can of worms which I'm not going to open this week. 
-		   -- dwmw2.
-		*/
-		if ((err = jffs_write_node(c, node, &raw_inode, f->name,
-					   (const unsigned char *)buf,
-					   recoverable, f)) < 0) {
-			D(printk("jffs_file_write(): jffs_write_node() failed.\n"));
-			jffs_free_node(node);
-			goto out;
-		}
-
-		written += err;
-		buf += err;
-		count -= err;
-		pos += err;
-
-		/* Insert the new node into the file system.  */
-		if ((err = jffs_insert_node(c, f, &raw_inode, NULL, node)) < 0) {
-			goto out;
-		}
-
-		D3(printk("jffs_file_write(): new f_pos %ld.\n", (long)pos));
-
-		thiscount = min(c->fmc->max_chunk_size - sizeof(struct jffs_raw_inode), count);
-	}
- out:
-	D3(printk (KERN_NOTICE "file_write(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-
-	/* Fix things in the real inode.  */
-	if (pos > inode->i_size) {
-		inode->i_size = pos;
-		inode->i_blocks = (inode->i_size + 511) >> 9;
-	}
-	inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC;
-	mark_inode_dirty(inode);
-	invalidate_mapping_pages(inode->i_mapping, 0, -1);
-
- out_isem:
-	return err;
-} /* jffs_file_write()  */
-
-static int
-jffs_prepare_write(struct file *filp, struct page *page,
-                  unsigned from, unsigned to)
-{
-	/* FIXME: we should detect some error conditions here */
-
-	/* Bugger that. We should make sure the page is uptodate */
-	if (!PageUptodate(page) && (from || to < PAGE_CACHE_SIZE))
-		return jffs_do_readpage_nolock(filp, page);
-
-	return 0;
-} /* jffs_prepare_write() */
-
-static int
-jffs_commit_write(struct file *filp, struct page *page,
-                 unsigned from, unsigned to)
-{
-       void *addr = page_address(page) + from;
-       /* XXX: PAGE_CACHE_SHIFT or PAGE_SHIFT */
-       loff_t pos = page_offset(page) + from;
-
-       return jffs_file_write(filp, addr, to-from, &pos);
-} /* jffs_commit_write() */
-
-/* This is our ioctl() routine.  */
-static int
-jffs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
-	   unsigned long arg)
-{
-	struct jffs_control *c;
-	int ret = 0;
-
-	D2(printk("***jffs_ioctl(): cmd = 0x%08x, arg = 0x%08lx\n",
-		  cmd, arg));
-
-	if (!(c = (struct jffs_control *)inode->i_sb->s_fs_info)) {
-		printk(KERN_ERR "JFFS: Bad inode in ioctl() call. "
-		       "(cmd = 0x%08x)\n", cmd);
-		return -EIO;
-	}
-	D3(printk (KERN_NOTICE "ioctl(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-
-	switch (cmd) {
-	case JFFS_PRINT_HASH:
-		jffs_print_hash_table(c);
-		break;
-	case JFFS_PRINT_TREE:
-		jffs_print_tree(c->root, 0);
-		break;
-	case JFFS_GET_STATUS:
-		{
-			struct jffs_flash_status fst;
-			struct jffs_fmcontrol *fmc = c->fmc;
-			printk("Flash status -- ");
-			if (!access_ok(VERIFY_WRITE,
-				       (struct jffs_flash_status __user *)arg,
-				       sizeof(struct jffs_flash_status))) {
-				D(printk("jffs_ioctl(): Bad arg in "
-					 "JFFS_GET_STATUS ioctl!\n"));
-				ret = -EFAULT;
-				break;
-			}
-			fst.size = fmc->flash_size;
-			fst.used = fmc->used_size;
-			fst.dirty = fmc->dirty_size;
-			fst.begin = fmc->head->offset;
-			fst.end = fmc->tail->offset + fmc->tail->size;
-			printk("size: %d, used: %d, dirty: %d, "
-			       "begin: %d, end: %d\n",
-			       fst.size, fst.used, fst.dirty,
-			       fst.begin, fst.end);
-			if (copy_to_user((struct jffs_flash_status __user *)arg,
-					 &fst,
-					 sizeof(struct jffs_flash_status))) {
-				ret = -EFAULT;
-			}
-		}
-		break;
-	default:
-		ret = -ENOTTY;
-	}
-	D3(printk (KERN_NOTICE "ioctl(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-	return ret;
-} /* jffs_ioctl()  */
-
-
-static const struct address_space_operations jffs_address_operations = {
-	.readpage	= jffs_readpage,
-	.prepare_write	= jffs_prepare_write,
-	.commit_write	= jffs_commit_write,
-};
-
-static int jffs_fsync(struct file *f, struct dentry *d, int datasync)
-{
-	/* We currently have O_SYNC operations at all times.
-	   Do nothing.
-	*/
-	return 0;
-}
-
-
-static const struct file_operations jffs_file_operations =
-{
-	.open		= generic_file_open,
-	.llseek		= generic_file_llseek,
-	.read		= do_sync_read,
-	.aio_read	= generic_file_aio_read,
-	.write		= do_sync_write,
-	.aio_write	= generic_file_aio_write,
-	.ioctl		= jffs_ioctl,
-	.mmap		= generic_file_readonly_mmap,
-	.fsync		= jffs_fsync,
-	.sendfile	= generic_file_sendfile,
-};
-
-
-static const struct inode_operations jffs_file_inode_operations =
-{
-	.lookup		= jffs_lookup,          /* lookup */
-	.setattr	= jffs_setattr,
-};
-
-
-static const struct file_operations jffs_dir_operations =
-{
-	.readdir	= jffs_readdir,
-};
-
-
-static const struct inode_operations jffs_dir_inode_operations =
-{
-	.create		= jffs_create,
-	.lookup		= jffs_lookup,
-	.unlink		= jffs_unlink,
-	.symlink	= jffs_symlink,
-	.mkdir		= jffs_mkdir,
-	.rmdir		= jffs_rmdir,
-	.mknod		= jffs_mknod,
-	.rename		= jffs_rename,
-	.setattr	= jffs_setattr,
-};
-
-
-/* Initialize an inode for the VFS.  */
-static void
-jffs_read_inode(struct inode *inode)
-{
-	struct jffs_file *f;
-	struct jffs_control *c;
-
-	D3(printk("jffs_read_inode(): inode->i_ino == %lu\n", inode->i_ino));
-
-	if (!inode->i_sb) {
-		D(printk("jffs_read_inode(): !inode->i_sb ==> "
-			 "No super block!\n"));
-		return;
-	}
-	c = (struct jffs_control *)inode->i_sb->s_fs_info;
-	D3(printk (KERN_NOTICE "read_inode(): down biglock\n"));
-	mutex_lock(&c->fmc->biglock);
-	if (!(f = jffs_find_file(c, inode->i_ino))) {
-		D(printk("jffs_read_inode(): No such inode (%lu).\n",
-			 inode->i_ino));
-		D3(printk (KERN_NOTICE "read_inode(): up biglock\n"));
-		mutex_unlock(&c->fmc->biglock);
-		return;
-	}
-	inode->i_private = f;
-	inode->i_mode = f->mode;
-	inode->i_nlink = f->nlink;
-	inode->i_uid = f->uid;
-	inode->i_gid = f->gid;
-	inode->i_size = f->size;
-	inode->i_atime.tv_sec = f->atime;
-	inode->i_mtime.tv_sec = f->mtime;
-	inode->i_ctime.tv_sec = f->ctime;
-	inode->i_atime.tv_nsec = 
-	inode->i_mtime.tv_nsec = 
-	inode->i_ctime.tv_nsec = 0;
-
-	inode->i_blocks = (inode->i_size + 511) >> 9;
-	if (S_ISREG(inode->i_mode)) {
-		inode->i_op = &jffs_file_inode_operations;
-		inode->i_fop = &jffs_file_operations;
-		inode->i_mapping->a_ops = &jffs_address_operations;
-	}
-	else if (S_ISDIR(inode->i_mode)) {
-		inode->i_op = &jffs_dir_inode_operations;
-		inode->i_fop = &jffs_dir_operations;
-	}
-	else if (S_ISLNK(inode->i_mode)) {
-		inode->i_op = &page_symlink_inode_operations;
-		inode->i_mapping->a_ops = &jffs_address_operations;
-	}
-	else {
-		/* If the node is a device of some sort, then the number of
-		   the device should be read from the flash memory and then
-		   added to the inode's i_rdev member.  */
-		u16 val;
-		jffs_read_data(f, (char *)&val, 0, 2);
-		init_special_inode(inode, inode->i_mode,
-			old_decode_dev(val));
-	}
-
-	D3(printk (KERN_NOTICE "read_inode(): up biglock\n"));
-	mutex_unlock(&c->fmc->biglock);
-}
-
-
-static void
-jffs_delete_inode(struct inode *inode)
-{
-	struct jffs_file *f;
-	struct jffs_control *c;
-	D3(printk("jffs_delete_inode(): inode->i_ino == %lu\n",
-		  inode->i_ino));
-
-	truncate_inode_pages(&inode->i_data, 0);
-	lock_kernel();
-	inode->i_size = 0;
-	inode->i_blocks = 0;
-	inode->i_private = NULL;
-	clear_inode(inode);
-	if (inode->i_nlink == 0) {
-		c = (struct jffs_control *) inode->i_sb->s_fs_info;
-		f = (struct jffs_file *) jffs_find_file (c, inode->i_ino);
-		jffs_possibly_delete_file(f);
-	}
-
-	unlock_kernel();
-}
-
-
-static void
-jffs_write_super(struct super_block *sb)
-{
-	struct jffs_control *c = (struct jffs_control *)sb->s_fs_info;
-	lock_kernel();
-	jffs_garbage_collect_trigger(c);
-	unlock_kernel();
-}
-
-static int jffs_remount(struct super_block *sb, int *flags, char *data)
-{
-	*flags |= MS_NODIRATIME;
-	return 0;
-}
-
-static const struct super_operations jffs_ops =
-{
-	.read_inode	= jffs_read_inode,
-	.delete_inode 	= jffs_delete_inode,
-	.put_super	= jffs_put_super,
-	.write_super	= jffs_write_super,
-	.statfs		= jffs_statfs,
-	.remount_fs	= jffs_remount,
-};
-
-static int jffs_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
-{
-	return get_sb_bdev(fs_type, flags, dev_name, data, jffs_fill_super,
-			   mnt);
-}
-
-static struct file_system_type jffs_fs_type = {
-	.owner		= THIS_MODULE,
-	.name		= "jffs",
-	.get_sb		= jffs_get_sb,
-	.kill_sb	= kill_block_super,
-	.fs_flags	= FS_REQUIRES_DEV,
-};
-
-static int __init
-init_jffs_fs(void)
-{
-	printk(KERN_INFO "JFFS version " JFFS_VERSION_STRING
-		", (C) 1999, 2000  Axis Communications AB\n");
-	
-#ifdef CONFIG_JFFS_PROC_FS
-	jffs_proc_root = proc_mkdir("jffs", proc_root_fs);
-	if (!jffs_proc_root) {
-		printk(KERN_WARNING "cannot create /proc/jffs entry\n");
-	}
-#endif
-	fm_cache = kmem_cache_create("jffs_fm", sizeof(struct jffs_fm),
-		       0,
-		       SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
-		       NULL, NULL);
-	if (!fm_cache) {
-		return -ENOMEM;
-	}
-
-	node_cache = kmem_cache_create("jffs_node",sizeof(struct jffs_node),
-		       0,
-		       SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
-		       NULL, NULL);
-	if (!node_cache) {
-		kmem_cache_destroy(fm_cache);
-		return -ENOMEM;
-	}
-
-	return register_filesystem(&jffs_fs_type);
-}
-
-static void __exit
-exit_jffs_fs(void)
-{
-	unregister_filesystem(&jffs_fs_type);
-	kmem_cache_destroy(fm_cache);
-	kmem_cache_destroy(node_cache);
-}
-
-module_init(init_jffs_fs)
-module_exit(exit_jffs_fs)
-
-MODULE_DESCRIPTION("The Journalling Flash File System");
-MODULE_AUTHOR("Axis Communications AB.");
-MODULE_LICENSE("GPL");