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gerrit-public.fairphone.software / kernel / msm-4.9 / c5f167d31530b9b1aa7beb469aeca10f869eff5a / . / fs / xfs / xfs_dir2_priv.h
blob: 0511cda4a712a480682b946829c5587cf37c4070 [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 Chinnerf5f3d9b2013-04-03 16:11:20 +1100[diff] [blame]33extern const struct xfs_buf_ops xfs_dir3_block_buf_ops;
Dave Chinner1813dd62012-11-14 17:54:40 +1100[diff] [blame]34
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]35extern int xfs_dir2_block_addname(struct xfs_da_args *args);
Al Virob8227552013-05-22 17:07:56 -0400[diff] [blame]36extern int xfs_dir2_block_getdents(struct xfs_inode *dp,
37 struct dir_context *ctx);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]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 Chinner33363fe2013-04-03 16:11:22 +1100[diff] [blame]46#define xfs_dir3_data_check(dp,bp) __xfs_dir3_data_check(dp, bp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]47#else
Dave Chinner33363fe2013-04-03 16:11:22 +1100[diff] [blame]48#define xfs_dir3_data_check(dp,bp)
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]49#endif
Dave Chinner1813dd62012-11-14 17:54:40 +1100[diff] [blame]50
Dave Chinner33363fe2013-04-03 16:11:22 +1100[diff] [blame]51extern const struct xfs_buf_ops xfs_dir3_data_buf_ops;
Dave Chinnerd75afeb2013-04-03 16:11:29 +1100[diff] [blame]52extern const struct xfs_buf_ops xfs_dir3_free_buf_ops;
Dave Chinner1813dd62012-11-14 17:54:40 +1100[diff] [blame]53
Dave Chinner33363fe2013-04-03 16:11:22 +1100[diff] [blame]54extern int __xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
55extern int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
Dave Chinnere4813572012-11-12 22:54:14 +1100[diff] [blame]56 xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp);
Dave Chinner33363fe2013-04-03 16:11:22 +1100[diff] [blame]57extern int xfs_dir3_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp,
Dave Chinnerda6958c2012-11-12 22:54:18 +1100[diff] [blame]58 xfs_dablk_t bno, xfs_daddr_t mapped_bno);
Dave Chinner82025d72012-11-12 22:54:12 +1100[diff] [blame]59
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]60extern struct xfs_dir2_data_free *
61xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr,
62 struct xfs_dir2_data_unused *dup, int *loghead);
63extern void xfs_dir2_data_freescan(struct xfs_mount *mp,
64 struct xfs_dir2_data_hdr *hdr, int *loghead);
Dave Chinnerf5f3d9b2013-04-03 16:11:20 +1100[diff] [blame]65extern int xfs_dir3_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]66 struct xfs_buf **bpp);
67extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]68 struct xfs_dir2_data_entry *dep);
69extern void xfs_dir2_data_log_header(struct xfs_trans *tp,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]70 struct xfs_buf *bp);
71extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]72 struct xfs_dir2_data_unused *dup);
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]73extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]74 xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len,
75 int *needlogp, int *needscanp);
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]76extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]77 struct xfs_dir2_data_unused *dup, xfs_dir2_data_aoff_t offset,
78 xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp);
79
80/* xfs_dir2_leaf.c */
Dave Chinnerd75afeb2013-04-03 16:11:29 +1100[diff] [blame]81extern const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops;
Dave Chinner24df33b2013-04-12 07:30:21 +1000[diff] [blame]82extern const struct xfs_buf_ops xfs_dir3_leafn_buf_ops;
Dave Chinner1813dd62012-11-14 17:54:40 +1100[diff] [blame]83
Dave Chinner24df33b2013-04-12 07:30:21 +1000[diff] [blame]84extern int xfs_dir3_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp,
Dave Chinnere6f76672012-11-12 22:54:15 +1100[diff] [blame]85 xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]86extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]87 struct xfs_buf *dbp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]88extern int xfs_dir2_leaf_addname(struct xfs_da_args *args);
Dave Chinner24df33b2013-04-12 07:30:21 +1000[diff] [blame]89extern void xfs_dir3_leaf_compact(struct xfs_da_args *args,
90 struct xfs_dir3_icleaf_hdr *leafhdr, struct xfs_buf *bp);
91extern void xfs_dir3_leaf_compact_x1(struct xfs_dir3_icleaf_hdr *leafhdr,
92 struct xfs_dir2_leaf_entry *ents, int *indexp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]93 int *lowstalep, int *highstalep, int *lowlogp, int *highlogp);
Al Virob8227552013-05-22 17:07:56 -0400[diff] [blame]94extern int xfs_dir2_leaf_getdents(struct xfs_inode *dp, struct dir_context *ctx,
95 size_t bufsize);
Dave Chinner24df33b2013-04-12 07:30:21 +1000[diff] [blame]96extern int xfs_dir3_leaf_get_buf(struct xfs_da_args *args, xfs_dir2_db_t bno,
97 struct xfs_buf **bpp, __uint16_t magic);
98extern void xfs_dir3_leaf_log_ents(struct xfs_trans *tp, struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]99 int first, int last);
Dave Chinner24df33b2013-04-12 07:30:21 +1000[diff] [blame]100extern void xfs_dir3_leaf_log_header(struct xfs_trans *tp,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]101 struct xfs_buf *bp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]102extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args);
103extern int xfs_dir2_leaf_removename(struct xfs_da_args *args);
104extern int xfs_dir2_leaf_replace(struct xfs_da_args *args);
105extern int xfs_dir2_leaf_search_hash(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]106 struct xfs_buf *lbp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]107extern int xfs_dir2_leaf_trim_data(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]108 struct xfs_buf *lbp, xfs_dir2_db_t db);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]109extern struct xfs_dir2_leaf_entry *
Dave Chinner24df33b2013-04-12 07:30:21 +1000[diff] [blame]110xfs_dir3_leaf_find_entry(struct xfs_dir3_icleaf_hdr *leafhdr,
111 struct xfs_dir2_leaf_entry *ents, int index, int compact,
112 int lowstale, int highstale, int *lfloglow, int *lfloghigh);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]113extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state);
114
Dave Chinner24df33b2013-04-12 07:30:21 +1000[diff] [blame]115extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
116 struct xfs_dir2_leaf *from);
117extern void xfs_dir3_leaf_hdr_to_disk(struct xfs_dir2_leaf *to,
118 struct xfs_dir3_icleaf_hdr *from);
119extern bool xfs_dir3_leaf_check_int(struct xfs_mount *mp,
120 struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf);
121
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]122/* xfs_dir2_node.c */
123extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args,
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]124 struct xfs_buf *lbp);
125extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_buf *bp, int *count);
126extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp,
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]127 struct xfs_da_args *args, int *indexp,
128 struct xfs_da_state *state);
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]129extern int xfs_dir2_leafn_order(struct xfs_buf *leaf1_bp,
130 struct xfs_buf *leaf2_bp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]131extern int xfs_dir2_leafn_split(struct xfs_da_state *state,
132 struct xfs_da_state_blk *oldblk, struct xfs_da_state_blk *newblk);
133extern int xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action);
134extern void xfs_dir2_leafn_unbalance(struct xfs_da_state *state,
135 struct xfs_da_state_blk *drop_blk,
136 struct xfs_da_state_blk *save_blk);
137extern int xfs_dir2_node_addname(struct xfs_da_args *args);
138extern int xfs_dir2_node_lookup(struct xfs_da_args *args);
139extern int xfs_dir2_node_removename(struct xfs_da_args *args);
140extern int xfs_dir2_node_replace(struct xfs_da_args *args);
141extern int xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo,
142 int *rvalp);
Dave Chinner20252072012-11-12 22:54:13 +1100[diff] [blame]143extern int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp,
144 xfs_dablk_t fbno, struct xfs_buf **bpp);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]145
146/* xfs_dir2_sf.c */
147extern xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *sfp);
148extern xfs_ino_t xfs_dir2_sfe_get_ino(struct xfs_dir2_sf_hdr *sfp,
149 struct xfs_dir2_sf_entry *sfep);
150extern int xfs_dir2_block_sfsize(struct xfs_inode *dp,
151 struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp);
Dave Chinner1d9025e2012-06-22 18:50:14 +1000[diff] [blame]152extern 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]153 int size, xfs_dir2_sf_hdr_t *sfhp);
154extern int xfs_dir2_sf_addname(struct xfs_da_args *args);
155extern int xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino);
Al Virob8227552013-05-22 17:07:56 -0400[diff] [blame]156extern int xfs_dir2_sf_getdents(struct xfs_inode *dp, struct dir_context *ctx);
Christoph Hellwig57926642011-07-13 13:43:48 +0200[diff] [blame]157extern int xfs_dir2_sf_lookup(struct xfs_da_args *args);
158extern int xfs_dir2_sf_removename(struct xfs_da_args *args);
159extern int xfs_dir2_sf_replace(struct xfs_da_args *args);
160
161#endif /* __XFS_DIR2_PRIV_H__ */