/*
   *  linux/fs/hpfs/dentry.c
   *
   *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
   *
   *  dcache operations
   */
  
  #include "hpfs_fn.h"
  
  /*
   * Note: the dentry argument is the parent dentry.
   */

  static int hpfs_hash_dentry(const struct dentry *dentry, const struct inode *inode,
  		struct qstr *qstr)

  {
  	unsigned long	 hash;
  	int		 i;
  	unsigned l = qstr->len;
  
  	if (l == 1) if (qstr->name[0]=='.') goto x;
  	if (l == 2) if (qstr->name[0]=='.' || qstr->name[1]=='.') goto x;

  	hpfs_adjust_length(qstr->name, &l);
  	/*if (hpfs_chk_name(qstr->name,&l))*/

  		/*return -ENAMETOOLONG;*/
  		/*return -ENOENT;*/
  	x:
  
  	hash = init_name_hash();
  	for (i = 0; i < l; i++)
  		hash = partial_name_hash(hpfs_upcase(hpfs_sb(dentry->d_sb)->sb_cp_table,qstr->name[i]), hash);
  	qstr->hash = end_name_hash(hash);
  
  	return 0;
  }

  static int hpfs_compare_dentry(const struct dentry *parent,
  		const struct inode *pinode,
  		const struct dentry *dentry, const struct inode *inode,
  		unsigned int len, const char *str, const struct qstr *name)

  {

  	unsigned al = len;
  	unsigned bl = name->len;
  
  	hpfs_adjust_length(str, &al);

  	/*hpfs_adjust_length(b->name, &bl);*/

  
  	/*
  	 * 'str' is the nane of an already existing dentry, so the name
  	 * must be valid. 'name' must be validated first.

  	 */

  	if (hpfs_chk_name(name->name, &bl))

  		return 1;

  	if (hpfs_compare_names(parent->d_sb, str, al, name->name, bl, 0))

  		return 1;

  	return 0;
  }

  const struct dentry_operations hpfs_dentry_operations = {

  	.d_hash		= hpfs_hash_dentry,
  	.d_compare	= hpfs_compare_dentry,
  };