#ifndef jffs2_private_h
  #define jffs2_private_h
  
  #include <jffs2/jffs2.h>

  struct b_node {
  	u32 offset;
  	struct b_node *next;

  	enum { CRC_UNKNOWN = 0, CRC_OK, CRC_BAD } datacrc;

  };

  struct b_list {
  	struct b_node *listTail;
  	struct b_node *listHead;

  #ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS

  	struct b_node *listLast;
  	int (*listCompare)(struct b_node *new, struct b_node *node);
  	u32 listLoops;
  #endif
  	u32 listCount;
  	struct mem_block *listMemBase;
  };

  struct b_lists {

  	struct b_list dir;
  	struct b_list frag;

  	void *readbuf;

  };

  struct b_compr_info {
  	u32 num_frags;
  	u32 compr_sum;
  	u32 decompr_sum;
  };
  
  struct b_jffs2_info {
  	struct b_compr_info compr_info[JFFS2_NUM_COMPR];
  };
  
  static inline int
  hdr_crc(struct jffs2_unknown_node *node)
  {

  #if 1

  	u32 crc = crc32_no_comp(0, (unsigned char *)node, sizeof(struct jffs2_unknown_node) - 4);

  #else
  	/* what's the semantics of this? why is this here? */

  	u32 crc = crc32_no_comp(~0, (unsigned char *)node, sizeof(struct jffs2_unknown_node) - 4);

  	crc ^= ~0;

  #endif

  	if (node->hdr_crc != crc) {
  		return 0;
  	} else {
  		return 1;
  	}

  }
  
  static inline int
  dirent_crc(struct jffs2_raw_dirent *node)
  {

  	if (node->node_crc != crc32_no_comp(0, (unsigned char *)node, sizeof(struct jffs2_raw_dirent) - 8)) {
  		return 0;
  	} else {
  		return 1;
  	}

  }
  
  static inline int
  dirent_name_crc(struct jffs2_raw_dirent *node)
  {

  	if (node->name_crc != crc32_no_comp(0, (unsigned char *)&(node->name), node->nsize)) {
  		return 0;
  	} else {
  		return 1;
  	}

  }
  
  static inline int
  inode_crc(struct jffs2_raw_inode *node)
  {

  	if (node->node_crc != crc32_no_comp(0, (unsigned char *)node, sizeof(struct jffs2_raw_inode) - 8)) {
  		return 0;
  	} else {
  		return 1;
  	}

  }

  static inline int
  data_crc(struct jffs2_raw_inode *node)
  {
  	if (node->data_crc != crc32_no_comp(0, (unsigned char *)

  					    ((int) &node->node_crc + sizeof (node->node_crc)),
  					     node->csize)) {

  		return 0;
  	} else {
  		return 1;
  	}
  }

  #if defined(CONFIG_SYS_JFFS2_SORT_FRAGMENTS)
  /* External merge sort. */
  int sort_list(struct b_list *list);
  #endif

  #endif /* jffs2_private.h */