fs/reiser4/plugin/item/tail.h

   1 /* Copyright 2002, 2003 by Hans Reiser, licensing governed by reiser4/README */
   2
   3 #if !defined( __REISER4_TAIL_H__ )
   4 #define __REISER4_TAIL_H__
   5
   6 struct tail_coord_extension {
   7         int not_used;
   8 };
   9
  10 struct cut_list;
  11
  12 /* plugin->u.item.b.* */
  13 reiser4_key *max_key_inside_tail(const coord_t *, reiser4_key *);
  14 int can_contain_key_tail(const coord_t * coord, const reiser4_key * key,
  15                          const reiser4_item_data *);
  16 int mergeable_tail(const coord_t * p1, const coord_t * p2);
  17 pos_in_node_t nr_units_tail(const coord_t *);
  18 lookup_result lookup_tail(const reiser4_key *, lookup_bias, coord_t *);
  19 int paste_tail(coord_t *, reiser4_item_data *, carry_plugin_info *);
  20 int can_shift_tail(unsigned free_space, coord_t * source,
  21                    znode * target, shift_direction, unsigned *size,
  22                    unsigned want);
  23 void copy_units_tail(coord_t * target, coord_t * source, unsigned from,
  24                      unsigned count, shift_direction, unsigned free_space);
  25 int kill_hook_tail(const coord_t *, pos_in_node_t from, pos_in_node_t count,
  26                    struct carry_kill_data *);
  27 int cut_units_tail(coord_t *, pos_in_node_t from, pos_in_node_t to,
  28                    struct carry_cut_data *, reiser4_key * smallest_removed,
  29                    reiser4_key * new_first);
  30 int kill_units_tail(coord_t *, pos_in_node_t from, pos_in_node_t to,
  31                     struct carry_kill_data *, reiser4_key * smallest_removed,
  32                     reiser4_key * new_first);
  33 reiser4_key *unit_key_tail(const coord_t *, reiser4_key *);
  34
  35 /* plugin->u.item.s.* */
  36 ssize_t reiser4_write_tail(struct file *file, const char __user *buf,
  37                            size_t count, loff_t *pos);
  38 int reiser4_read_tail(struct file *, flow_t *, hint_t *);
  39 int readpage_tail(void *vp, struct page *page);
  40 reiser4_key *append_key_tail(const coord_t *, reiser4_key *);
  41 void init_coord_extension_tail(uf_coord_t *, loff_t offset);
  42 int get_block_address_tail(const coord_t *, sector_t, sector_t *);
  43 int item_balance_dirty_pages(struct address_space *, const flow_t *,
  44                              hint_t *, int back_to_dirty, int set_hint);
  45
  46 /* __REISER4_TAIL_H__ */
  47 #endif
  48
  49 /* Make Linus happy.
  50    Local variables:
  51    c-indentation-style: "K&R"
  52    mode-name: "LC"
  53    c-basic-offset: 8
  54    tab-width: 8
  55    fill-column: 120
  56    scroll-step: 1
  57    End:
  58 */