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Diffstat (limited to 'fs/xfs/xfs_dir2.h')
-rw-r--r--fs/xfs/xfs_dir2.h106
1 files changed, 88 insertions, 18 deletions
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index 9910401327d..cec70e0781a 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -32,6 +32,83 @@ struct xfs_dir2_data_unused;
extern struct xfs_name xfs_name_dotdot;
/*
+ * directory operations vector for encode/decode routines
+ */
+struct xfs_dir_ops {
+ int (*sf_entsize)(struct xfs_dir2_sf_hdr *hdr, int len);
+ struct xfs_dir2_sf_entry *
+ (*sf_nextentry)(struct xfs_dir2_sf_hdr *hdr,
+ struct xfs_dir2_sf_entry *sfep);
+ __uint8_t (*sf_get_ftype)(struct xfs_dir2_sf_entry *sfep);
+ void (*sf_put_ftype)(struct xfs_dir2_sf_entry *sfep,
+ __uint8_t ftype);
+ xfs_ino_t (*sf_get_ino)(struct xfs_dir2_sf_hdr *hdr,
+ struct xfs_dir2_sf_entry *sfep);
+ void (*sf_put_ino)(struct xfs_dir2_sf_hdr *hdr,
+ struct xfs_dir2_sf_entry *sfep,
+ xfs_ino_t ino);
+ xfs_ino_t (*sf_get_parent_ino)(struct xfs_dir2_sf_hdr *hdr);
+ void (*sf_put_parent_ino)(struct xfs_dir2_sf_hdr *hdr,
+ xfs_ino_t ino);
+
+ int (*data_entsize)(int len);
+ __uint8_t (*data_get_ftype)(struct xfs_dir2_data_entry *dep);
+ void (*data_put_ftype)(struct xfs_dir2_data_entry *dep,
+ __uint8_t ftype);
+ __be16 * (*data_entry_tag_p)(struct xfs_dir2_data_entry *dep);
+ struct xfs_dir2_data_free *
+ (*data_bestfree_p)(struct xfs_dir2_data_hdr *hdr);
+
+ xfs_dir2_data_aoff_t data_dot_offset;
+ xfs_dir2_data_aoff_t data_dotdot_offset;
+ xfs_dir2_data_aoff_t data_first_offset;
+ size_t data_entry_offset;
+
+ struct xfs_dir2_data_entry *
+ (*data_dot_entry_p)(struct xfs_dir2_data_hdr *hdr);
+ struct xfs_dir2_data_entry *
+ (*data_dotdot_entry_p)(struct xfs_dir2_data_hdr *hdr);
+ struct xfs_dir2_data_entry *
+ (*data_first_entry_p)(struct xfs_dir2_data_hdr *hdr);
+ struct xfs_dir2_data_entry *
+ (*data_entry_p)(struct xfs_dir2_data_hdr *hdr);
+ struct xfs_dir2_data_unused *
+ (*data_unused_p)(struct xfs_dir2_data_hdr *hdr);
+
+ int leaf_hdr_size;
+ void (*leaf_hdr_to_disk)(struct xfs_dir2_leaf *to,
+ struct xfs_dir3_icleaf_hdr *from);
+ void (*leaf_hdr_from_disk)(struct xfs_dir3_icleaf_hdr *to,
+ struct xfs_dir2_leaf *from);
+ int (*leaf_max_ents)(struct xfs_mount *mp);
+ struct xfs_dir2_leaf_entry *
+ (*leaf_ents_p)(struct xfs_dir2_leaf *lp);
+
+ int node_hdr_size;
+ void (*node_hdr_to_disk)(struct xfs_da_intnode *to,
+ struct xfs_da3_icnode_hdr *from);
+ void (*node_hdr_from_disk)(struct xfs_da3_icnode_hdr *to,
+ struct xfs_da_intnode *from);
+ struct xfs_da_node_entry *
+ (*node_tree_p)(struct xfs_da_intnode *dap);
+
+ int free_hdr_size;
+ void (*free_hdr_to_disk)(struct xfs_dir2_free *to,
+ struct xfs_dir3_icfree_hdr *from);
+ void (*free_hdr_from_disk)(struct xfs_dir3_icfree_hdr *to,
+ struct xfs_dir2_free *from);
+ int (*free_max_bests)(struct xfs_mount *mp);
+ __be16 * (*free_bests_p)(struct xfs_dir2_free *free);
+ xfs_dir2_db_t (*db_to_fdb)(struct xfs_mount *mp, xfs_dir2_db_t db);
+ int (*db_to_fdindex)(struct xfs_mount *mp, xfs_dir2_db_t db);
+};
+
+extern const struct xfs_dir_ops *
+ xfs_dir_get_ops(struct xfs_mount *mp, struct xfs_inode *dp);
+extern const struct xfs_dir_ops *
+ xfs_nondir_get_ops(struct xfs_mount *mp, struct xfs_inode *dp);
+
+/*
* Generic directory interface routines
*/
extern void xfs_dir_startup(void);
@@ -65,37 +142,30 @@ extern int xfs_dir2_sf_to_block(struct xfs_da_args *args);
/*
* Interface routines used by userspace utilities
*/
-extern xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *sfp);
-extern void xfs_dir2_sf_put_parent_ino(struct xfs_dir2_sf_hdr *sfp,
- xfs_ino_t ino);
-extern xfs_ino_t xfs_dir3_sfe_get_ino(struct xfs_mount *mp,
- struct xfs_dir2_sf_hdr *sfp, struct xfs_dir2_sf_entry *sfep);
-extern void xfs_dir3_sfe_put_ino(struct xfs_mount *mp,
- struct xfs_dir2_sf_hdr *hdr, struct xfs_dir2_sf_entry *sfep,
- xfs_ino_t ino);
-
extern int xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
struct xfs_buf *bp);
-extern void xfs_dir2_data_freescan(struct xfs_mount *mp,
+extern void xfs_dir2_data_freescan(struct xfs_inode *dp,
struct xfs_dir2_data_hdr *hdr, int *loghead);
-extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_buf *bp,
- struct xfs_dir2_data_entry *dep);
-extern void xfs_dir2_data_log_header(struct xfs_trans *tp,
+extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_inode *dp,
+ struct xfs_buf *bp, struct xfs_dir2_data_entry *dep);
+extern void xfs_dir2_data_log_header(struct xfs_trans *tp, struct xfs_inode *dp,
struct xfs_buf *bp);
extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp,
struct xfs_dir2_data_unused *dup);
-extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_buf *bp,
+extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_inode *dp,
+ struct xfs_buf *bp, xfs_dir2_data_aoff_t offset,
+ xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp);
+extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_inode *dp,
+ struct xfs_buf *bp, struct xfs_dir2_data_unused *dup,
xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len,
int *needlogp, int *needscanp);
-extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp,
- struct xfs_dir2_data_unused *dup, xfs_dir2_data_aoff_t offset,
- xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp);
extern struct xfs_dir2_data_free *xfs_dir2_data_freefind(
- struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_unused *dup);
+ struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_free *bf,
+ struct xfs_dir2_data_unused *dup);
extern const struct xfs_buf_ops xfs_dir3_block_buf_ops;
extern const struct xfs_buf_ops xfs_dir3_leafn_buf_ops;