LXR linux/fs/xfs/libxfs/xfs_dir2

   1/*
   2 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
   3 * All Rights Reserved.
   4 *
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU General Public License as
   7 * published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it would be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU General Public License
  15 * along with this program; if not, write the Free Software Foundation,
  16 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17 */
  18#ifndef __XFS_DIR2_PRIV_H__
  19#define __XFS_DIR2_PRIV_H__
  20
  21struct dir_context;
  22
  23/* xfs_dir2.c */
  24extern int xfs_dir_ino_validate(struct xfs_mount *mp, xfs_ino_t ino);
  25extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
  26                                xfs_dir2_db_t *dbp);
  27extern int xfs_dir_cilookup_result(struct xfs_da_args *args,
  28                                const unsigned char *name, int len);
  29
  30
  31/* xfs_dir2_block.c */
  32extern int xfs_dir3_block_read(struct xfs_trans *tp, struct xfs_inode *dp,
  33                               struct xfs_buf **bpp);
  34extern int xfs_dir2_block_addname(struct xfs_da_args *args);
  35extern int xfs_dir2_block_lookup(struct xfs_da_args *args);
  36extern int xfs_dir2_block_removename(struct xfs_da_args *args);
  37extern int xfs_dir2_block_replace(struct xfs_da_args *args);
  38extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args,
  39                struct xfs_buf *lbp, struct xfs_buf *dbp);
  40
  41/* xfs_dir2_data.c */
  42#ifdef DEBUG
  43#define xfs_dir3_data_check(dp,bp) __xfs_dir3_data_check(dp, bp);
  44#else
  45#define xfs_dir3_data_check(dp,bp)
  46#endif
  47
  48extern int __xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
  49extern int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
  50                xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp);
  51extern int xfs_dir3_data_readahead(struct xfs_inode *dp, xfs_dablk_t bno,
  52                xfs_daddr_t mapped_bno);
  53
  54extern struct xfs_dir2_data_free *
  55xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr,
  56                struct xfs_dir2_data_free *bf, struct xfs_dir2_data_unused *dup,
  57                int *loghead);
  58extern int xfs_dir3_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
  59                struct xfs_buf **bpp);
  60
  61/* xfs_dir2_leaf.c */
  62extern int xfs_dir3_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp,
  63                xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
  64extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args,
  65                struct xfs_buf *dbp);
  66extern int xfs_dir2_leaf_addname(struct xfs_da_args *args);
  67extern void xfs_dir3_leaf_compact(struct xfs_da_args *args,
  68                struct xfs_dir3_icleaf_hdr *leafhdr, struct xfs_buf *bp);
  69extern void xfs_dir3_leaf_compact_x1(struct xfs_dir3_icleaf_hdr *leafhdr,
  70                struct xfs_dir2_leaf_entry *ents, int *indexp,
  71                int *lowstalep, int *highstalep, int *lowlogp, int *highlogp);
  72extern int xfs_dir3_leaf_get_buf(struct xfs_da_args *args, xfs_dir2_db_t bno,
  73                struct xfs_buf **bpp, __uint16_t magic);
  74extern void xfs_dir3_leaf_log_ents(struct xfs_da_args *args,
  75                struct xfs_buf *bp, int first, int last);
  76extern void xfs_dir3_leaf_log_header(struct xfs_da_args *args,
  77                struct xfs_buf *bp);
  78extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args);
  79extern int xfs_dir2_leaf_removename(struct xfs_da_args *args);
  80extern int xfs_dir2_leaf_replace(struct xfs_da_args *args);
  81extern int xfs_dir2_leaf_search_hash(struct xfs_da_args *args,
  82                struct xfs_buf *lbp);
  83extern int xfs_dir2_leaf_trim_data(struct xfs_da_args *args,
  84                struct xfs_buf *lbp, xfs_dir2_db_t db);
  85extern struct xfs_dir2_leaf_entry *
  86xfs_dir3_leaf_find_entry(struct xfs_dir3_icleaf_hdr *leafhdr,
  87                struct xfs_dir2_leaf_entry *ents, int index, int compact,
  88                int lowstale, int highstale, int *lfloglow, int *lfloghigh);
  89extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state);
  90
  91extern bool xfs_dir3_leaf_check_int(struct xfs_mount *mp, struct xfs_inode *dp,
  92                struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf);
  93
  94/* xfs_dir2_node.c */
  95extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args,
  96                struct xfs_buf *lbp);
  97extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_inode *dp,
  98                struct xfs_buf *bp, int *count);
  99extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp,
 100                struct xfs_da_args *args, int *indexp,
 101                struct xfs_da_state *state);
 102extern int xfs_dir2_leafn_order(struct xfs_inode *dp, struct xfs_buf *leaf1_bp,
 103                struct xfs_buf *leaf2_bp);
 104extern int xfs_dir2_leafn_split(struct xfs_da_state *state,
 105        struct xfs_da_state_blk *oldblk, struct xfs_da_state_blk *newblk);
 106extern int xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action);
 107extern void xfs_dir2_leafn_unbalance(struct xfs_da_state *state,
 108                struct xfs_da_state_blk *drop_blk,
 109                struct xfs_da_state_blk *save_blk);
 110extern int xfs_dir2_node_addname(struct xfs_da_args *args);
 111extern int xfs_dir2_node_lookup(struct xfs_da_args *args);
 112extern int xfs_dir2_node_removename(struct xfs_da_args *args);
 113extern int xfs_dir2_node_replace(struct xfs_da_args *args);
 114extern int xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo,
 115                int *rvalp);
 116extern int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp,
 117                xfs_dablk_t fbno, struct xfs_buf **bpp);
 118
 119/* xfs_dir2_sf.c */
 120extern int xfs_dir2_block_sfsize(struct xfs_inode *dp,
 121                struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp);
 122extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_buf *bp,
 123                int size, xfs_dir2_sf_hdr_t *sfhp);
 124extern int xfs_dir2_sf_addname(struct xfs_da_args *args);
 125extern int xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino);
 126extern int xfs_dir2_sf_lookup(struct xfs_da_args *args);
 127extern int xfs_dir2_sf_removename(struct xfs_da_args *args);
 128extern int xfs_dir2_sf_replace(struct xfs_da_args *args);
 129
 130/* xfs_dir2_readdir.c */
 131extern int xfs_readdir(struct xfs_inode *dp, struct dir_context *ctx,
 132                       size_t bufsize);
 133
 134#endif /* __XFS_DIR2_PRIV_H__ */
 135