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gerrit-public.fairphone.software / kernel / msm-4.9 / 4afcd1db8214890a8f655a1d07d8445812e72932 / . / fs / xfs / xfs_dir2_priv.h
blob: 7da79f6515fd08e94c036d6010cc9b8d1d68e1f8 [file] [log] [blame]
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]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/* xfs_dir2.c */
22extern int xfs_dir_ino_validate(struct xfs_mount *mp, xfs_ino_t ino);
23extern int xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
24extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
25extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
26 xfs_dir2_db_t *dbp);
27extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]28 struct xfs_buf *bp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]29extern int xfs_dir_cilookup_result(struct xfs_da_args *args,
30 const unsigned char *name, int len);
31
32/* xfs_dir2_block.c */
Dave Chinner1813dd62012-11-14 17:54:40 +1100[diff] [blame]33extern const struct xfs_buf_ops xfs_dir2_block_buf_ops;
34
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]35extern int xfs_dir2_block_addname(struct xfs_da_args *args);
36extern int xfs_dir2_block_getdents(struct xfs_inode *dp, void *dirent,
37 xfs_off_t *offset, filldir_t filldir);
38extern int xfs_dir2_block_lookup(struct xfs_da_args *args);
39extern int xfs_dir2_block_removename(struct xfs_da_args *args);
40extern int xfs_dir2_block_replace(struct xfs_da_args *args);
41extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]42 struct xfs_buf *lbp, struct xfs_buf *dbp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]43
44/* xfs_dir2_data.c */
45#ifdef DEBUG
Dave Chinner82025d72012-11-12 22:54:12 +1100[diff] [blame]46#define xfs_dir2_data_check(dp,bp) __xfs_dir2_data_check(dp, bp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]47#else
48#define xfs_dir2_data_check(dp,bp)
49#endif
Dave Chinner1813dd62012-11-14 17:54:40 +1100[diff] [blame]50
51extern const struct xfs_buf_ops xfs_dir2_data_buf_ops;
52
Dave Chinner82025d72012-11-12 22:54:12 +1100[diff] [blame]53extern int __xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
Dave Chinnere4813572012-11-12 22:54:14 +1100[diff] [blame]54extern int xfs_dir2_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
55 xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp);
Dave Chinnerda6958c2012-11-12 22:54:18 +1100[diff] [blame]56extern int xfs_dir2_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp,
57 xfs_dablk_t bno, xfs_daddr_t mapped_bno);
Dave Chinner82025d72012-11-12 22:54:12 +1100[diff] [blame]58
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]59extern struct xfs_dir2_data_free *
60xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr,
61 struct xfs_dir2_data_unused *dup, int *loghead);
62extern void xfs_dir2_data_freescan(struct xfs_mount *mp,
63 struct xfs_dir2_data_hdr *hdr, int *loghead);
64extern int xfs_dir2_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]65 struct xfs_buf **bpp);
66extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]67 struct xfs_dir2_data_entry *dep);
68extern void xfs_dir2_data_log_header(struct xfs_trans *tp,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]69 struct xfs_buf *bp);
70extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]71 struct xfs_dir2_data_unused *dup);
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]72extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]73 xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len,
74 int *needlogp, int *needscanp);
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]75extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]76 struct xfs_dir2_data_unused *dup, xfs_dir2_data_aoff_t offset,
77 xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp);
78
79/* xfs_dir2_leaf.c */
Dave Chinner1813dd62012-11-14 17:54:40 +1100[diff] [blame]80extern const struct xfs_buf_ops xfs_dir2_leafn_buf_ops;
81
Dave Chinnere6f76672012-11-12 22:54:15 +1100[diff] [blame]82extern int xfs_dir2_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp,
83 xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]84extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]85 struct xfs_buf *dbp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]86extern int xfs_dir2_leaf_addname(struct xfs_da_args *args);
87extern void xfs_dir2_leaf_compact(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]88 struct xfs_buf *bp);
89extern void xfs_dir2_leaf_compact_x1(struct xfs_buf *bp, int *indexp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]90 int *lowstalep, int *highstalep, int *lowlogp, int *highlogp);
91extern int xfs_dir2_leaf_getdents(struct xfs_inode *dp, void *dirent,
92 size_t bufsize, xfs_off_t *offset, filldir_t filldir);
93extern int xfs_dir2_leaf_init(struct xfs_da_args *args, xfs_dir2_db_t bno,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]94 struct xfs_buf **bpp, int magic);
95extern void xfs_dir2_leaf_log_ents(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]96 int first, int last);
97extern void xfs_dir2_leaf_log_header(struct xfs_trans *tp,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]98 struct xfs_buf *bp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]99extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args);
100extern int xfs_dir2_leaf_removename(struct xfs_da_args *args);
101extern int xfs_dir2_leaf_replace(struct xfs_da_args *args);
102extern int xfs_dir2_leaf_search_hash(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]103 struct xfs_buf *lbp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]104extern int xfs_dir2_leaf_trim_data(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]105 struct xfs_buf *lbp, xfs_dir2_db_t db);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]106extern struct xfs_dir2_leaf_entry *
107xfs_dir2_leaf_find_entry(struct xfs_dir2_leaf *leaf, int index, int compact,
108 int lowstale, int highstale,
109 int *lfloglow, int *lfloghigh);
110extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state);
111
112/* xfs_dir2_node.c */
113extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]114 struct xfs_buf *lbp);
115extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_buf *bp, int *count);
116extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]117 struct xfs_da_args *args, int *indexp,
118 struct xfs_da_state *state);
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]119extern int xfs_dir2_leafn_order(struct xfs_buf *leaf1_bp,
120 struct xfs_buf *leaf2_bp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]121extern int xfs_dir2_leafn_split(struct xfs_da_state *state,
122 struct xfs_da_state_blk *oldblk, struct xfs_da_state_blk *newblk);
123extern int xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action);
124extern void xfs_dir2_leafn_unbalance(struct xfs_da_state *state,
125 struct xfs_da_state_blk *drop_blk,
126 struct xfs_da_state_blk *save_blk);
127extern int xfs_dir2_node_addname(struct xfs_da_args *args);
128extern int xfs_dir2_node_lookup(struct xfs_da_args *args);
129extern int xfs_dir2_node_removename(struct xfs_da_args *args);
130extern int xfs_dir2_node_replace(struct xfs_da_args *args);
131extern int xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo,
132 int *rvalp);
Dave Chinner20252072012-11-12 22:54:13 +1100[diff] [blame]133extern int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp,
134 xfs_dablk_t fbno, struct xfs_buf **bpp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]135
136/* xfs_dir2_sf.c */
137extern xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *sfp);
138extern xfs_ino_t xfs_dir2_sfe_get_ino(struct xfs_dir2_sf_hdr *sfp,
139 struct xfs_dir2_sf_entry *sfep);
140extern int xfs_dir2_block_sfsize(struct xfs_inode *dp,
141 struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp);
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]142extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]143 int size, xfs_dir2_sf_hdr_t *sfhp);
144extern int xfs_dir2_sf_addname(struct xfs_da_args *args);
145extern int xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino);
146extern int xfs_dir2_sf_getdents(struct xfs_inode *dp, void *dirent,
147 xfs_off_t *offset, filldir_t filldir);
148extern int xfs_dir2_sf_lookup(struct xfs_da_args *args);
149extern int xfs_dir2_sf_removename(struct xfs_da_args *args);
150extern int xfs_dir2_sf_replace(struct xfs_da_args *args);
151
152#endif /* __XFS_DIR2_PRIV_H__ */