fs/xfs/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_dir_ino_validate(struct xfs_mount *mp, xfs_ino_t ino);
  25 extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
  26                                 xfs_dir2_db_t *dbp);
  27 extern int xfs_dir_cilookup_result(struct xfs_da_args *args,
  28                                 const unsigned char *name, int len);
  29
  30 #define S_SHIFT 12
  31 extern const unsigned char xfs_mode_to_ftype[];
  32
  33 extern unsigned char xfs_dir3_get_dtype(struct xfs_mount *mp,
  34                                         __uint8_t filetype);
  35
  36
  37 /* xfs_dir2_block.c */
  38 extern int xfs_dir3_block_read(struct xfs_trans *tp, struct xfs_inode *dp,
  39                                struct xfs_buf **bpp);
  40 extern int xfs_dir2_block_addname(struct xfs_da_args *args);
  41 extern int xfs_dir2_block_lookup(struct xfs_da_args *args);
  42 extern int xfs_dir2_block_removename(struct xfs_da_args *args);
  43 extern int xfs_dir2_block_replace(struct xfs_da_args *args);
  44 extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args,
  45                 struct xfs_buf *lbp, struct xfs_buf *dbp);
  46
  47 /* xfs_dir2_data.c */
  48 #ifdef DEBUG
  49 #define xfs_dir3_data_check(dp,bp) __xfs_dir3_data_check(dp, bp);
  50 #else
  51 #define xfs_dir3_data_check(dp,bp)
  52 #endif
  53
  54 extern int __xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
  55 extern int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
  56                 xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp);
  57 extern int xfs_dir3_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp,
  58                 xfs_dablk_t bno, xfs_daddr_t mapped_bno);
  59
  60 extern struct xfs_dir2_data_free *
  61 xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr,
  62                 struct xfs_dir2_data_unused *dup, int *loghead);
  63 extern int xfs_dir3_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
  64                 struct xfs_buf **bpp);
  65
  66 /* xfs_dir2_leaf.c */
  67 extern int xfs_dir3_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp,
  68                 xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
  69 extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args,
  70                 struct xfs_buf *dbp);
  71 extern int xfs_dir2_leaf_addname(struct xfs_da_args *args);
  72 extern void xfs_dir3_leaf_compact(struct xfs_da_args *args,
  73                 struct xfs_dir3_icleaf_hdr *leafhdr, struct xfs_buf *bp);
  74 extern void xfs_dir3_leaf_compact_x1(struct xfs_dir3_icleaf_hdr *leafhdr,
  75                 struct xfs_dir2_leaf_entry *ents, int *indexp,
  76                 int *lowstalep, int *highstalep, int *lowlogp, int *highlogp);
  77 extern int xfs_dir3_leaf_get_buf(struct xfs_da_args *args, xfs_dir2_db_t bno,
  78                 struct xfs_buf **bpp, __uint16_t magic);
  79 extern void xfs_dir3_leaf_log_ents(struct xfs_trans *tp, struct xfs_buf *bp,
  80                 int first, int last);
  81 extern void xfs_dir3_leaf_log_header(struct xfs_trans *tp,
  82                 struct xfs_buf *bp);
  83 extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args);
  84 extern int xfs_dir2_leaf_removename(struct xfs_da_args *args);
  85 extern int xfs_dir2_leaf_replace(struct xfs_da_args *args);
  86 extern int xfs_dir2_leaf_search_hash(struct xfs_da_args *args,
  87                 struct xfs_buf *lbp);
  88 extern int xfs_dir2_leaf_trim_data(struct xfs_da_args *args,
  89                 struct xfs_buf *lbp, xfs_dir2_db_t db);
  90 extern struct xfs_dir2_leaf_entry *
  91 xfs_dir3_leaf_find_entry(struct xfs_dir3_icleaf_hdr *leafhdr,
  92                 struct xfs_dir2_leaf_entry *ents, int index, int compact,
  93                 int lowstale, int highstale, int *lfloglow, int *lfloghigh);
  94 extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state);
  95
  96 extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
  97                 struct xfs_dir2_leaf *from);
  98 extern void xfs_dir3_leaf_hdr_to_disk(struct xfs_dir2_leaf *to,
  99                 struct xfs_dir3_icleaf_hdr *from);
 100 extern bool xfs_dir3_leaf_check_int(struct xfs_mount *mp,
 101                 struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf);
 102
 103 /* xfs_dir2_node.c */
 104 extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args,
 105                 struct xfs_buf *lbp);
 106 extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_buf *bp, int *count);
 107 extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp,
 108                 struct xfs_da_args *args, int *indexp,
 109                 struct xfs_da_state *state);
 110 extern int xfs_dir2_leafn_order(struct xfs_buf *leaf1_bp,
 111                 struct xfs_buf *leaf2_bp);
 112 extern int xfs_dir2_leafn_split(struct xfs_da_state *state,
 113         struct xfs_da_state_blk *oldblk, struct xfs_da_state_blk *newblk);
 114 extern int xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action);
 115 extern void xfs_dir2_leafn_unbalance(struct xfs_da_state *state,
 116                 struct xfs_da_state_blk *drop_blk,
 117                 struct xfs_da_state_blk *save_blk);
 118 extern int xfs_dir2_node_addname(struct xfs_da_args *args);
 119 extern int xfs_dir2_node_lookup(struct xfs_da_args *args);
 120 extern int xfs_dir2_node_removename(struct xfs_da_args *args);
 121 extern int xfs_dir2_node_replace(struct xfs_da_args *args);
 122 extern int xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo,
 123                 int *rvalp);
 124 extern int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp,
 125                 xfs_dablk_t fbno, struct xfs_buf **bpp);
 126
 127 /* xfs_dir2_sf.c */
 128 extern int xfs_dir2_block_sfsize(struct xfs_inode *dp,
 129                 struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp);
 130 extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_buf *bp,
 131                 int size, xfs_dir2_sf_hdr_t *sfhp);
 132 extern int xfs_dir2_sf_addname(struct xfs_da_args *args);
 133 extern int xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino);
 134 extern int xfs_dir2_sf_lookup(struct xfs_da_args *args);
 135 extern int xfs_dir2_sf_removename(struct xfs_da_args *args);
 136 extern int xfs_dir2_sf_replace(struct xfs_da_args *args);
 137
 138 /* xfs_dir2_readdir.c */
 139 extern int xfs_readdir(struct xfs_inode *dp, struct dir_context *ctx,
 140                        size_t bufsize);
 141
 142 #endif /* __XFS_DIR2_PRIV_H__ */