fs/reiser4/plugin/object.h

   1 /* Copyright 2002, 2003 by Hans Reiser, licensing governed by
   2  * reiser4/README */
   3
   4 /* Declaration of object plugin functions. */
   5
   6 #if !defined( __FS_REISER4_PLUGIN_OBJECT_H__ )
   7 #define __FS_REISER4_PLUGIN_OBJECT_H__
   8
   9 #include "../type_safe_hash.h"
  10
  11 /* common implementations of inode operations */
  12 int reiser4_create_common(struct inode *parent, struct dentry *dentry,
  13                           int mode, struct nameidata *);
  14 struct dentry * reiser4_lookup_common(struct inode *parent,
  15                                       struct dentry *dentry,
  16                                       struct nameidata *nameidata);
  17 int reiser4_link_common(struct dentry *existing, struct inode *parent,
  18                         struct dentry *newname);
  19 int reiser4_unlink_common(struct inode *parent, struct dentry *victim);
  20 int reiser4_mkdir_common(struct inode *parent, struct dentry *dentry, int mode);
  21 int reiser4_symlink_common(struct inode *parent, struct dentry *dentry,
  22                    const char *linkname);
  23 int reiser4_mknod_common(struct inode *parent, struct dentry *dentry,
  24                  int mode, dev_t rdev);
  25 int reiser4_rename_common(struct inode *old_dir, struct dentry *old_name,
  26                           struct inode *new_dir, struct dentry *new_name);
  27 void *reiser4_follow_link_common(struct dentry *, struct nameidata *data);
  28 int reiser4_permission_common(struct inode *, int mask,
  29                               struct nameidata *nameidata);
  30 int reiser4_setattr_common(struct dentry *, struct iattr *);
  31 int reiser4_getattr_common(struct vfsmount *mnt, struct dentry *,
  32                            struct kstat *);
  33
  34 /* common implementations of file operations */
  35 loff_t reiser4_llseek_dir_common(struct file *, loff_t off, int origin);
  36 int reiser4_readdir_common(struct file *, void *dirent, filldir_t);
  37 int reiser4_release_dir_common(struct inode *, struct file *);
  38 int reiser4_sync_common(struct file *, struct dentry *, int datasync);
  39
  40 /* common implementations of address space operations */
  41 int prepare_write_common(struct file *, struct page *, unsigned from,
  42                          unsigned to);
  43
  44 /* file plugin operations: common implementations */
  45 int write_sd_by_inode_common(struct inode *);
  46 int key_by_inode_and_offset_common(struct inode *, loff_t, reiser4_key *);
  47 int set_plug_in_inode_common(struct inode *object, struct inode *parent,
  48                              reiser4_object_create_data *);
  49 int adjust_to_parent_common(struct inode *object, struct inode *parent,
  50                             struct inode *root);
  51 int adjust_to_parent_common_dir(struct inode *object, struct inode *parent,
  52                                 struct inode *root);
  53 int adjust_to_parent_cryptcompress(struct inode *object, struct inode *parent,
  54                                    struct inode *root);
  55 int reiser4_create_object_common(struct inode *object, struct inode *parent,
  56                                  reiser4_object_create_data *);
  57 int reiser4_delete_object_common(struct inode *);
  58 int reiser4_delete_dir_common(struct inode *);
  59 int reiser4_add_link_common(struct inode *object, struct inode *parent);
  60 int reiser4_rem_link_common(struct inode *object, struct inode *parent);
  61 int rem_link_common_dir(struct inode *object, struct inode *parent);
  62 int owns_item_common(const struct inode *, const coord_t *);
  63 int owns_item_common_dir(const struct inode *, const coord_t *);
  64 int can_add_link_common(const struct inode *);
  65 int can_rem_link_common_dir(const struct inode *);
  66 int reiser4_detach_common_dir(struct inode *child, struct inode *parent);
  67 int reiser4_bind_common_dir(struct inode *child, struct inode *parent);
  68 int safelink_common(struct inode *, reiser4_safe_link_t, __u64 value);
  69 reiser4_block_nr estimate_create_common(const struct inode *);
  70 reiser4_block_nr estimate_create_common_dir(const struct inode *);
  71 reiser4_block_nr estimate_update_common(const struct inode *);
  72 reiser4_block_nr estimate_unlink_common(const struct inode *,
  73                                         const struct inode *);
  74 reiser4_block_nr estimate_unlink_common_dir(const struct inode *,
  75                                             const struct inode *);
  76 char *wire_write_common(struct inode *, char *start);
  77 char *wire_read_common(char *addr, reiser4_object_on_wire *);
  78 struct dentry *wire_get_common(struct super_block *, reiser4_object_on_wire *);
  79 int wire_size_common(struct inode *);
  80 void wire_done_common(reiser4_object_on_wire *);
  81
  82 /* dir plugin operations: common implementations */
  83 struct dentry *get_parent_common(struct inode *child);
  84 int is_name_acceptable_common(const struct inode *, const char *name, int len);
  85 void build_entry_key_common(const struct inode *,
  86                             const struct qstr *qname, reiser4_key *);
  87 int build_readdir_key_common(struct file *dir, reiser4_key *);
  88 int reiser4_add_entry_common(struct inode *object, struct dentry *where,
  89                      reiser4_object_create_data *, reiser4_dir_entry_desc *);
  90 int reiser4_rem_entry_common(struct inode *object, struct dentry *where,
  91                      reiser4_dir_entry_desc *);
  92 int reiser4_dir_init_common(struct inode *object, struct inode *parent,
  93                             reiser4_object_create_data *);
  94 int reiser4_dir_done_common(struct inode *);
  95 int reiser4_attach_common(struct inode *child, struct inode *parent);
  96 int reiser4_detach_common(struct inode *object, struct inode *parent);
  97 reiser4_block_nr estimate_add_entry_common(const struct inode *);
  98 reiser4_block_nr estimate_rem_entry_common(const struct inode *);
  99 reiser4_block_nr dir_estimate_unlink_common(const struct inode *,
 100                                             const struct inode *);
 101
 102 /* these are essential parts of common implementations, they are to make
 103    customized implementations easier */
 104 int do_prepare_write(struct file *, struct page *, unsigned from, unsigned to);
 105
 106 /* merely useful functions */
 107 int lookup_sd(struct inode *, znode_lock_mode, coord_t *, lock_handle *,
 108               const reiser4_key *, int silent);
 109
 110 /* __FS_REISER4_PLUGIN_OBJECT_H__ */
 111 #endif
 112
 113 /* Make Linus happy.
 114    Local variables:
 115    c-indentation-style: "K&R"
 116    mode-name: "LC"
 117    c-basic-offset: 8
 118    tab-width: 8
 119    fill-column: 120
 120    End:
 121 */