fs/xfs/libxfs/xfs_dir2_priv.h

   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
  21 struct dir_context;
  22
  23 /* xfs_dir2.c */
  24 extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
  25                                 xfs_dir2_db_t *dbp);
  26 extern int xfs_dir_cilookup_result(struct xfs_da_args *args,
  27                                 const unsigned char *name, int len);
  28
  29
  30 /* xfs_dir2_block.c */
  31 extern int xfs_dir3_block_read(struct xfs_trans *tp, struct xfs_inode *dp,
  32                                struct xfs_buf **bpp);
  33 extern int xfs_dir2_block_addname(struct xfs_da_args *args);
  34 extern int xfs_dir2_block_lookup(struct xfs_da_args *args);
  35 extern int xfs_dir2_block_removename(struct xfs_da_args *args);
  36 extern int xfs_dir2_block_replace(struct xfs_da_args *args);
  37 extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args,
  38                 struct xfs_buf *lbp, struct xfs_buf *dbp);
  39
  40 /* xfs_dir2_data.c */
  41 #ifdef DEBUG
  42 #define xfs_dir3_data_check(dp,bp) __xfs_dir3_data_check(dp, bp);
  43 #else
  44 #define xfs_dir3_data_check(dp,bp)
  45 #endif
  46
  47 extern int __xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
  48 extern int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
  49                 xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp);
  50 extern int xfs_dir3_data_readahead(struct xfs_inode *dp, xfs_dablk_t bno,
  51                 xfs_daddr_t mapped_bno);
  52
  53 extern struct xfs_dir2_data_free *
  54 xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr,
  55                 struct xfs_dir2_data_free *bf, struct xfs_dir2_data_unused *dup,
  56                 int *loghead);
  57 extern int xfs_dir3_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
  58                 struct xfs_buf **bpp);
  59
  60 /* xfs_dir2_leaf.c */
  61 extern int xfs_dir3_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp,
  62                 xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
  63 extern int xfs_dir3_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp,
  64                 xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
  65 extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args,
  66                 struct xfs_buf *dbp);
  67 extern int xfs_dir2_leaf_addname(struct xfs_da_args *args);
  68 extern void xfs_dir3_leaf_compact(struct xfs_da_args *args,
  69                 struct xfs_dir3_icleaf_hdr *leafhdr, struct xfs_buf *bp);
  70 extern void xfs_dir3_leaf_compact_x1(struct xfs_dir3_icleaf_hdr *leafhdr,
  71                 struct xfs_dir2_leaf_entry *ents, int *indexp,
  72                 int *lowstalep, int *highstalep, int *lowlogp, int *highlogp);
  73 extern int xfs_dir3_leaf_get_buf(struct xfs_da_args *args, xfs_dir2_db_t bno,
  74                 struct xfs_buf **bpp, uint16_t magic);
  75 extern void xfs_dir3_leaf_log_ents(struct xfs_da_args *args,
  76                 struct xfs_buf *bp, int first, int last);
  77 extern void xfs_dir3_leaf_log_header(struct xfs_da_args *args,
  78                 struct xfs_buf *bp);
  79 extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args);
  80 extern int xfs_dir2_leaf_removename(struct xfs_da_args *args);
  81 extern int xfs_dir2_leaf_replace(struct xfs_da_args *args);
  82 extern int xfs_dir2_leaf_search_hash(struct xfs_da_args *args,
  83                 struct xfs_buf *lbp);
  84 extern int xfs_dir2_leaf_trim_data(struct xfs_da_args *args,
  85                 struct xfs_buf *lbp, xfs_dir2_db_t db);
  86 extern struct xfs_dir2_leaf_entry *
  87 xfs_dir3_leaf_find_entry(struct xfs_dir3_icleaf_hdr *leafhdr,
  88                 struct xfs_dir2_leaf_entry *ents, int index, int compact,
  89                 int lowstale, int highstale, int *lfloglow, int *lfloghigh);
  90 extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state);
  91
  92 extern bool xfs_dir3_leaf_check_int(struct xfs_mount *mp, struct xfs_inode *dp,
  93                 struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf);
  94
  95 /* xfs_dir2_node.c */
  96 extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args,
  97                 struct xfs_buf *lbp);
  98 extern xfs_dahash_t xfs_dir2_leaf_lasthash(struct xfs_inode *dp,
  99                 struct xfs_buf *bp, int *count);
 100 extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp,
 101                 struct xfs_da_args *args, int *indexp,
 102                 struct xfs_da_state *state);
 103 extern int xfs_dir2_leafn_order(struct xfs_inode *dp, struct xfs_buf *leaf1_bp,
 104                 struct xfs_buf *leaf2_bp);
 105 extern int xfs_dir2_leafn_split(struct xfs_da_state *state,
 106         struct xfs_da_state_blk *oldblk, struct xfs_da_state_blk *newblk);
 107 extern int xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action);
 108 extern void xfs_dir2_leafn_unbalance(struct xfs_da_state *state,
 109                 struct xfs_da_state_blk *drop_blk,
 110                 struct xfs_da_state_blk *save_blk);
 111 extern int xfs_dir2_node_addname(struct xfs_da_args *args);
 112 extern int xfs_dir2_node_lookup(struct xfs_da_args *args);
 113 extern int xfs_dir2_node_removename(struct xfs_da_args *args);
 114 extern int xfs_dir2_node_replace(struct xfs_da_args *args);
 115 extern int xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo,
 116                 int *rvalp);
 117 extern int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp,
 118                 xfs_dablk_t fbno, struct xfs_buf **bpp);
 119
 120 /* xfs_dir2_sf.c */
 121 extern int xfs_dir2_block_sfsize(struct xfs_inode *dp,
 122                 struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp);
 123 extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_buf *bp,
 124                 int size, xfs_dir2_sf_hdr_t *sfhp);
 125 extern int xfs_dir2_sf_addname(struct xfs_da_args *args);
 126 extern int xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino);
 127 extern int xfs_dir2_sf_lookup(struct xfs_da_args *args);
 128 extern int xfs_dir2_sf_removename(struct xfs_da_args *args);
 129 extern int xfs_dir2_sf_replace(struct xfs_da_args *args);
 130 extern int xfs_dir2_sf_verify(struct xfs_inode *ip);
 131
 132 /* xfs_dir2_readdir.c */
 133 extern int xfs_readdir(struct xfs_trans *tp, struct xfs_inode *dp,
 134                        struct dir_context *ctx, size_t bufsize);
 135
 136 #endif /* __XFS_DIR2_PRIV_H__ */