| | 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_H__ |
| | 19 | #define __XFS_DIR2_H__ |
| | 20 | |
| | 21 | struct xfs_bmap_free; |
| | 22 | struct xfs_da_args; |
| | 23 | struct xfs_inode; |
| | 24 | struct xfs_mount; |
| | 25 | struct xfs_trans; |
| | 26 | struct xfs_dir2_sf_hdr; |
| | 27 | struct xfs_dir2_sf_entry; |
| | 28 | struct xfs_dir2_data_hdr; |
| | 29 | struct xfs_dir2_data_entry; |
| | 30 | struct xfs_dir2_data_unused; |
| | 31 | |
| | 32 | extern struct xfs_name xfs_name_dotdot; |
| | 33 | |
| | 34 | /* |
| | 35 | * directory operations vector for encode/decode routines |
| | 36 | */ |
| | 37 | struct xfs_dir_ops { |
| | 38 | int (*sf_entsize)(struct xfs_dir2_sf_hdr *hdr, int len); |
| | 39 | struct xfs_dir2_sf_entry * |
| | 40 | (*sf_nextentry)(struct xfs_dir2_sf_hdr *hdr, |
| | 41 | struct xfs_dir2_sf_entry *sfep); |
| | 42 | }; |
| | 43 | |
| | 44 | extern const struct xfs_dir_ops xfs_dir2_ops; |
| | 45 | extern const struct xfs_dir_ops xfs_dir2_ftype_ops; |
| | 46 | extern const struct xfs_dir_ops xfs_dir3_ops; |
| | 47 | |
| | 48 | /* |
| | 49 | * Generic directory interface routines |
| | 50 | */ |
| | 51 | extern void xfs_dir_startup(void); |
| | 52 | extern void xfs_dir_mount(struct xfs_mount *mp); |
| | 53 | extern int xfs_dir_isempty(struct xfs_inode *dp); |
| | 54 | extern int xfs_dir_init(struct xfs_trans *tp, struct xfs_inode *dp, |
| | 55 | struct xfs_inode *pdp); |
| | 56 | extern int xfs_dir_createname(struct xfs_trans *tp, struct xfs_inode *dp, |
| | 57 | struct xfs_name *name, xfs_ino_t inum, |
| | 58 | xfs_fsblock_t *first, |
| | 59 | struct xfs_bmap_free *flist, xfs_extlen_t tot); |
| | 60 | extern int xfs_dir_lookup(struct xfs_trans *tp, struct xfs_inode *dp, |
| | 61 | struct xfs_name *name, xfs_ino_t *inum, |
| | 62 | struct xfs_name *ci_name); |
| | 63 | extern int xfs_dir_removename(struct xfs_trans *tp, struct xfs_inode *dp, |
| | 64 | struct xfs_name *name, xfs_ino_t ino, |
| | 65 | xfs_fsblock_t *first, |
| | 66 | struct xfs_bmap_free *flist, xfs_extlen_t tot); |
| | 67 | extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp, |
| | 68 | struct xfs_name *name, xfs_ino_t inum, |
| | 69 | xfs_fsblock_t *first, |
| | 70 | struct xfs_bmap_free *flist, xfs_extlen_t tot); |
| | 71 | extern int xfs_dir_canenter(struct xfs_trans *tp, struct xfs_inode *dp, |
| | 72 | struct xfs_name *name, uint resblks); |
| | 73 | |
| | 74 | /* |
| | 75 | * Direct call from the bmap code, bypassing the generic directory layer. |
| | 76 | */ |
| | 77 | extern int xfs_dir2_sf_to_block(struct xfs_da_args *args); |
| | 78 | |
| | 79 | /* |
| | 80 | * Interface routines used by userspace utilities |
| | 81 | */ |
| | 82 | extern xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *sfp); |
| | 83 | extern void xfs_dir2_sf_put_parent_ino(struct xfs_dir2_sf_hdr *sfp, |
| | 84 | xfs_ino_t ino); |
| | 85 | extern xfs_ino_t xfs_dir3_sfe_get_ino(struct xfs_mount *mp, |
| | 86 | struct xfs_dir2_sf_hdr *sfp, struct xfs_dir2_sf_entry *sfep); |
| | 87 | extern void xfs_dir3_sfe_put_ino(struct xfs_mount *mp, |
| | 88 | struct xfs_dir2_sf_hdr *hdr, struct xfs_dir2_sf_entry *sfep, |
| | 89 | xfs_ino_t ino); |
| | 90 | |
| | 91 | extern int xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *r); |
| | 92 | extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *r); |
| | 93 | extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db, |
| | 94 | struct xfs_buf *bp); |
| | 95 | |
| | 96 | extern void xfs_dir2_data_freescan(struct xfs_mount *mp, |
| | 97 | struct xfs_dir2_data_hdr *hdr, int *loghead); |
| | 98 | extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_buf *bp, |
| | 99 | struct xfs_dir2_data_entry *dep); |
| | 100 | extern void xfs_dir2_data_log_header(struct xfs_trans *tp, |
| | 101 | struct xfs_buf *bp); |
| | 102 | extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp, |
| | 103 | struct xfs_dir2_data_unused *dup); |
| | 104 | extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_buf *bp, |
| | 105 | xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len, |
| | 106 | int *needlogp, int *needscanp); |
| | 107 | extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp, |
| | 108 | struct xfs_dir2_data_unused *dup, xfs_dir2_data_aoff_t offset, |
| | 109 | xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp); |
| | 110 | |
| | 111 | extern struct xfs_dir2_data_free *xfs_dir2_data_freefind( |
| | 112 | struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_unused *dup); |
| | 113 | |
| | 114 | extern const struct xfs_buf_ops xfs_dir3_block_buf_ops; |
| | 115 | extern const struct xfs_buf_ops xfs_dir3_leafn_buf_ops; |
| | 116 | extern const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops; |
| | 117 | extern const struct xfs_buf_ops xfs_dir3_free_buf_ops; |
| | 118 | extern const struct xfs_buf_ops xfs_dir3_data_buf_ops; |
| | 119 | |
| | 120 | #endif /* __XFS_DIR2_H__ */ |
projects / linux-2.6-block.git / blame_incremental