fs/reiser4/plugin/item/acl.h

   1 /* Copyright 2001, 2002, 2003 by Hans Reiser, licensing governed by reiser4/README */
   2
   3 /* Directory entry. */
   4
   5 #if !defined( __FS_REISER4_PLUGIN_DIRECTORY_ENTRY_H__ )
   6 #define __FS_REISER4_PLUGIN_DIRECTORY_ENTRY_H__
   7
   8 #include "../../forward.h"
   9 #include "../../dformat.h"
  10 #include "../../kassign.h"
  11 #include "../../key.h"
  12
  13 #include <linux/fs.h>
  14 #include <linux/dcache.h>       /* for struct dentry */
  15
  16 typedef struct directory_entry_format {
  17         /* key of object stat-data. It's not necessary to store whole
  18            key here, because it's always key of stat-data, so minor
  19            packing locality and offset can be omitted here. But this
  20            relies on particular key allocation scheme for stat-data, so,
  21            for extensibility sake, whole key can be stored here.
  22
  23            We store key as array of bytes, because we don't want 8-byte
  24            alignment of dir entries.
  25          */
  26         obj_key_id id;
  27         /* file name. Null terminated string. */
  28         d8 name[0];
  29 } directory_entry_format;
  30
  31 void print_de(const char *prefix, coord_t * coord);
  32 int extract_key_de(const coord_t * coord, reiser4_key * key);
  33 int update_key_de(const coord_t * coord, const reiser4_key * key,
  34                   lock_handle * lh);
  35 char *extract_name_de(const coord_t * coord, char *buf);
  36 unsigned extract_file_type_de(const coord_t * coord);
  37 int add_entry_de(struct inode *dir, coord_t * coord,
  38                  lock_handle * lh, const struct dentry *name,
  39                  reiser4_dir_entry_desc * entry);
  40 int rem_entry_de(struct inode *dir, const struct qstr *name, coord_t * coord,
  41                  lock_handle * lh, reiser4_dir_entry_desc * entry);
  42 int max_name_len_de(const struct inode *dir);
  43
  44 int de_rem_and_shrink(struct inode *dir, coord_t * coord, int length);
  45
  46 char *extract_dent_name(const coord_t * coord,
  47                         directory_entry_format * dent, char *buf);
  48
  49 #if REISER4_LARGE_KEY
  50 #define DE_NAME_BUF_LEN (24)
  51 #else
  52 #define DE_NAME_BUF_LEN (16)
  53 #endif
  54
  55 /* __FS_REISER4_PLUGIN_DIRECTORY_ENTRY_H__ */
  56 #endif
  57
  58 /* Make Linus happy.
  59    Local variables:
  60    c-indentation-style: "K&R"
  61    mode-name: "LC"
  62    c-basic-offset: 8
  63    tab-width: 8
  64    fill-column: 120
  65    End:
  66 */