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 int reiser4_setattr_common(struct dentry *, struct iattr *);
  30 int reiser4_getattr_common(struct vfsmount *mnt, struct dentry *,
  31                            struct kstat *);
  32
  33 /* common implementations of file operations */
  34 loff_t reiser4_llseek_dir_common(struct file *, loff_t off, int origin);
  35 int reiser4_readdir_common(struct file *, void *dirent, filldir_t);
  36 int reiser4_release_dir_common(struct inode *, struct file *);
  37 int reiser4_sync_common(struct file *, struct dentry *, int datasync);
  38
  39
  40 /* file plugin operations: common implementations */
  41 int write_sd_by_inode_common(struct inode *);
  42 int key_by_inode_and_offset_common(struct inode *, loff_t, reiser4_key *);
  43 int set_plug_in_inode_common(struct inode *object, struct inode *parent,
  44                              reiser4_object_create_data *);
  45 int adjust_to_parent_common(struct inode *object, struct inode *parent,
  46                             struct inode *root);
  47 int adjust_to_parent_common_dir(struct inode *object, struct inode *parent,
  48                                 struct inode *root);
  49 int adjust_to_parent_cryptcompress(struct inode *object, struct inode *parent,
  50                                    struct inode *root);
  51 int reiser4_create_object_common(struct inode *object, struct inode *parent,
  52                                  reiser4_object_create_data *);
  53 int reiser4_delete_object_common(struct inode *);
  54 int reiser4_delete_dir_common(struct inode *);
  55 int reiser4_add_link_common(struct inode *object, struct inode *parent);
  56 int reiser4_rem_link_common(struct inode *object, struct inode *parent);
  57 int rem_link_common_dir(struct inode *object, struct inode *parent);
  58 int owns_item_common(const struct inode *, const coord_t *);
  59 int owns_item_common_dir(const struct inode *, const coord_t *);
  60 int can_add_link_common(const struct inode *);
  61 int can_rem_link_common_dir(const struct inode *);
  62 int reiser4_detach_common_dir(struct inode *child, struct inode *parent);
  63 int reiser4_bind_common_dir(struct inode *child, struct inode *parent);
  64 int safelink_common(struct inode *, reiser4_safe_link_t, __u64 value);
  65 reiser4_block_nr estimate_create_common(const struct inode *);
  66 reiser4_block_nr estimate_create_common_dir(const struct inode *);
  67 reiser4_block_nr estimate_update_common(const struct inode *);
  68 reiser4_block_nr estimate_unlink_common(const struct inode *,
  69                                         const struct inode *);
  70 reiser4_block_nr estimate_unlink_common_dir(const struct inode *,
  71                                             const struct inode *);
  72 char *wire_write_common(struct inode *, char *start);
  73 char *wire_read_common(char *addr, reiser4_object_on_wire *);
  74 struct dentry *wire_get_common(struct super_block *, reiser4_object_on_wire *);
  75 int wire_size_common(struct inode *);
  76 void wire_done_common(reiser4_object_on_wire *);
  77
  78 /* dir plugin operations: common implementations */
  79 struct dentry *get_parent_common(struct inode *child);
  80 int is_name_acceptable_common(const struct inode *, const char *name, int len);
  81 void build_entry_key_common(const struct inode *,
  82                             const struct qstr *qname, reiser4_key *);
  83 int build_readdir_key_common(struct file *dir, reiser4_key *);
  84 int reiser4_add_entry_common(struct inode *object, struct dentry *where,
  85                      reiser4_object_create_data * , reiser4_dir_entry_desc *);
  86 int reiser4_rem_entry_common(struct inode *object, struct dentry *where,
  87                      reiser4_dir_entry_desc *);
  88 int reiser4_dir_init_common(struct inode *object, struct inode *parent,
  89                             reiser4_object_create_data *);
  90 int reiser4_dir_done_common(struct inode *);
  91 int reiser4_attach_common(struct inode *child, struct inode *parent);
  92 int reiser4_detach_common(struct inode *object, struct inode *parent);
  93 reiser4_block_nr estimate_add_entry_common(const struct inode *);
  94 reiser4_block_nr estimate_rem_entry_common(const struct inode *);
  95 reiser4_block_nr dir_estimate_unlink_common(const struct inode *,
  96                                             const struct inode *);
  97
  98 /* these are essential parts of common implementations, they are to make
  99    customized implementations easier */
 100 int do_prepare_write(struct file *, struct page *, unsigned from, unsigned to);
 101
 102 /* merely useful functions */
 103 int lookup_sd(struct inode *, znode_lock_mode, coord_t *, lock_handle * ,
 104               const reiser4_key * , int silent);
 105
 106 /* __FS_REISER4_PLUGIN_OBJECT_H__ */
 107 #endif
 108
 109 /* Make Linus happy.
 110    Local variables:
 111    c-indentation-style: "K&R"
 112    mode-name: "LC"
 113    c-basic-offset: 8
 114    tab-width: 8
 115    fill-column: 120
 116    End:
 117 */