fs/gfs2/dir.h

   1 /*
   2  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
   3  * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
   4  *
   5  * This copyrighted material is made available to anyone wishing to use,
   6  * modify, copy, or redistribute it subject to the terms and conditions
   7  * of the GNU General Public License v.2.
   8  */
   9
  10 #ifndef __DIR_DOT_H__
  11 #define __DIR_DOT_H__
  12
  13 /**
  14  * gfs2_filldir_t - Report a directory entry to the caller of gfs2_dir_read()
  15  * @opaque: opaque data used by the function
  16  * @name: the name of the directory entry
  17  * @length: the length of the name
  18  * @offset: the entry's offset in the directory
  19  * @inum: the inode number the entry points to
  20  * @type: the type of inode the entry points to
  21  *
  22  * Returns: 0 on success, 1 if buffer full
  23  */
  24
  25 typedef int (*gfs2_filldir_t) (void *opaque,
  26                               const char *name, unsigned int length,
  27                               uint64_t offset,
  28                               struct gfs2_inum *inum, unsigned int type);
  29
  30 int gfs2_filecmp(struct qstr *file1, char *file2, int len_of_file2);
  31 int gfs2_dirent_alloc(struct gfs2_inode *dip, struct buffer_head *bh,
  32                      int name_len, struct gfs2_dirent **dent_out);
  33
  34 int gfs2_dir_search(struct gfs2_inode *dip, struct qstr *filename,
  35                    struct gfs2_inum *inum, unsigned int *type);
  36 int gfs2_dir_add(struct gfs2_inode *dip, struct qstr *filename,
  37                 struct gfs2_inum *inum, unsigned int type);
  38 int gfs2_dir_del(struct gfs2_inode *dip, struct qstr *filename);
  39 int gfs2_dir_read(struct gfs2_inode *dip, uint64_t * offset, void *opaque,
  40                  gfs2_filldir_t filldir);
  41 int gfs2_dir_mvino(struct gfs2_inode *dip, struct qstr *filename,
  42                   struct gfs2_inum *new_inum, unsigned int new_type);
  43
  44 int gfs2_dir_exhash_dealloc(struct gfs2_inode *dip);
  45
  46 int gfs2_diradd_alloc_required(struct gfs2_inode *dip, struct qstr *filename,
  47                               int *alloc_required);
  48 int gfs2_dir_get_buffer(struct gfs2_inode *ip, uint64_t block, int new,
  49                          struct buffer_head **bhp);
  50
  51 #endif /* __DIR_DOT_H__ */