Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1 | /* -*- mode: c; c-basic-offset: 8; -*- |
| 2 | * vim: noexpandtab sw=8 ts=8 sts=0: |
| 3 | * |
| 4 | * dir.h |
| 5 | * |
| 6 | * Function prototypes |
| 7 | * |
| 8 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public |
| 12 | * License as published by the Free Software Foundation; either |
| 13 | * version 2 of the License, or (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public |
| 21 | * License along with this program; if not, write to the |
| 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 23 | * Boston, MA 021110-1307, USA. |
| 24 | */ |
| 25 | |
| 26 | #ifndef OCFS2_DIR_H |
| 27 | #define OCFS2_DIR_H |
| 28 | |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame^] | 29 | struct ocfs2_dx_hinfo { |
| 30 | u32 major_hash; |
| 31 | u32 minor_hash; |
| 32 | }; |
| 33 | |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 34 | struct ocfs2_dir_lookup_result { |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame^] | 35 | struct buffer_head *dl_leaf_bh; /* Unindexed leaf |
| 36 | * block */ |
| 37 | struct ocfs2_dir_entry *dl_entry; /* Target dirent in |
| 38 | * unindexed leaf */ |
| 39 | |
| 40 | struct buffer_head *dl_dx_leaf_bh; /* Indexed leaf block */ |
| 41 | struct ocfs2_dx_entry *dl_dx_entry; /* Target dx_entry in |
| 42 | * indexed leaf */ |
| 43 | struct ocfs2_dx_hinfo dl_hinfo; /* Name hash results */ |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 44 | }; |
| 45 | void ocfs2_free_dir_lookup_result(struct ocfs2_dir_lookup_result *res); |
| 46 | |
| 47 | int ocfs2_find_entry(const char *name, int namelen, |
| 48 | struct inode *dir, |
| 49 | struct ocfs2_dir_lookup_result *lookup); |
Mark Fasheh | 316f4b9 | 2007-09-07 18:21:26 -0700 | [diff] [blame] | 50 | int ocfs2_delete_entry(handle_t *handle, |
| 51 | struct inode *dir, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 52 | struct ocfs2_dir_lookup_result *res); |
Mark Fasheh | 316f4b9 | 2007-09-07 18:21:26 -0700 | [diff] [blame] | 53 | int __ocfs2_add_entry(handle_t *handle, |
| 54 | struct inode *dir, |
| 55 | const char *name, int namelen, |
| 56 | struct inode *inode, u64 blkno, |
| 57 | struct buffer_head *parent_fe_bh, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 58 | struct ocfs2_dir_lookup_result *lookup); |
Mark Fasheh | 316f4b9 | 2007-09-07 18:21:26 -0700 | [diff] [blame] | 59 | static inline int ocfs2_add_entry(handle_t *handle, |
| 60 | struct dentry *dentry, |
| 61 | struct inode *inode, u64 blkno, |
| 62 | struct buffer_head *parent_fe_bh, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 63 | struct ocfs2_dir_lookup_result *lookup) |
Mark Fasheh | 316f4b9 | 2007-09-07 18:21:26 -0700 | [diff] [blame] | 64 | { |
| 65 | return __ocfs2_add_entry(handle, dentry->d_parent->d_inode, |
| 66 | dentry->d_name.name, dentry->d_name.len, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 67 | inode, blkno, parent_fe_bh, lookup); |
Mark Fasheh | 316f4b9 | 2007-09-07 18:21:26 -0700 | [diff] [blame] | 68 | } |
Mark Fasheh | 38760e2 | 2007-09-11 17:21:56 -0700 | [diff] [blame] | 69 | int ocfs2_update_entry(struct inode *dir, handle_t *handle, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 70 | struct ocfs2_dir_lookup_result *res, |
Mark Fasheh | 38760e2 | 2007-09-11 17:21:56 -0700 | [diff] [blame] | 71 | struct inode *new_entry_inode); |
Mark Fasheh | 316f4b9 | 2007-09-07 18:21:26 -0700 | [diff] [blame] | 72 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 73 | int ocfs2_check_dir_for_entry(struct inode *dir, |
| 74 | const char *name, |
| 75 | int namelen); |
Mark Fasheh | 0bfbbf6 | 2007-09-12 11:19:00 -0700 | [diff] [blame] | 76 | int ocfs2_empty_dir(struct inode *inode); |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 77 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 78 | int ocfs2_find_files_on_disk(const char *name, |
| 79 | int namelen, |
| 80 | u64 *blkno, |
| 81 | struct inode *inode, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 82 | struct ocfs2_dir_lookup_result *res); |
Mark Fasheh | be94d11 | 2007-09-11 15:22:06 -0700 | [diff] [blame] | 83 | int ocfs2_lookup_ino_from_name(struct inode *dir, const char *name, |
| 84 | int namelen, u64 *blkno); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 85 | int ocfs2_readdir(struct file *filp, void *dirent, filldir_t filldir); |
Mark Fasheh | 5eae5b9 | 2007-09-10 17:50:51 -0700 | [diff] [blame] | 86 | int ocfs2_dir_foreach(struct inode *inode, loff_t *f_pos, void *priv, |
| 87 | filldir_t filldir); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 88 | int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb, |
| 89 | struct inode *dir, |
| 90 | struct buffer_head *parent_fe_bh, |
| 91 | const char *name, |
| 92 | int namelen, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 93 | struct ocfs2_dir_lookup_result *lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 94 | struct ocfs2_alloc_context; |
Mark Fasheh | 316f4b9 | 2007-09-07 18:21:26 -0700 | [diff] [blame] | 95 | int ocfs2_fill_new_dir(struct ocfs2_super *osb, |
| 96 | handle_t *handle, |
| 97 | struct inode *parent, |
| 98 | struct inode *inode, |
| 99 | struct buffer_head *fe_bh, |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame^] | 100 | struct ocfs2_alloc_context *data_ac, |
| 101 | struct ocfs2_alloc_context *meta_ac); |
| 102 | |
| 103 | int ocfs2_dx_dir_truncate(struct inode *dir, struct buffer_head *di_bh); |
Mark Fasheh | 316f4b9 | 2007-09-07 18:21:26 -0700 | [diff] [blame] | 104 | |
Joel Becker | c175a51 | 2008-12-10 17:58:22 -0800 | [diff] [blame] | 105 | struct ocfs2_dir_block_trailer *ocfs2_dir_trailer_from_size(int blocksize, |
| 106 | void *data); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 107 | #endif /* OCFS2_DIR_H */ |