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 29 struct ocfs2_dir_lookup_result { 30 struct buffer_head *dl_leaf_bh; 31 struct ocfs2_dir_entry *dl_entry; 32 }; 33 void ocfs2_free_dir_lookup_result(struct ocfs2_dir_lookup_result *res); 34 35 int ocfs2_find_entry(const char *name, int namelen, 36 struct inode *dir, 37 struct ocfs2_dir_lookup_result *lookup); 38 int ocfs2_delete_entry(handle_t *handle, 39 struct inode *dir, 40 struct ocfs2_dir_lookup_result *res); 41 int __ocfs2_add_entry(handle_t *handle, 42 struct inode *dir, 43 const char *name, int namelen, 44 struct inode *inode, u64 blkno, 45 struct buffer_head *parent_fe_bh, 46 struct ocfs2_dir_lookup_result *lookup); 47 static inline int ocfs2_add_entry(handle_t *handle, 48 struct dentry *dentry, 49 struct inode *inode, u64 blkno, 50 struct buffer_head *parent_fe_bh, 51 struct ocfs2_dir_lookup_result *lookup) 52 { 53 return __ocfs2_add_entry(handle, dentry->d_parent->d_inode, 54 dentry->d_name.name, dentry->d_name.len, 55 inode, blkno, parent_fe_bh, lookup); 56 } 57 int ocfs2_update_entry(struct inode *dir, handle_t *handle, 58 struct ocfs2_dir_lookup_result *res, 59 struct inode *new_entry_inode); 60 61 int ocfs2_check_dir_for_entry(struct inode *dir, 62 const char *name, 63 int namelen); 64 int ocfs2_empty_dir(struct inode *inode); 65 66 int ocfs2_find_files_on_disk(const char *name, 67 int namelen, 68 u64 *blkno, 69 struct inode *inode, 70 struct ocfs2_dir_lookup_result *res); 71 int ocfs2_lookup_ino_from_name(struct inode *dir, const char *name, 72 int namelen, u64 *blkno); 73 int ocfs2_readdir(struct file *filp, void *dirent, filldir_t filldir); 74 int ocfs2_dir_foreach(struct inode *inode, loff_t *f_pos, void *priv, 75 filldir_t filldir); 76 int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb, 77 struct inode *dir, 78 struct buffer_head *parent_fe_bh, 79 const char *name, 80 int namelen, 81 struct ocfs2_dir_lookup_result *lookup); 82 struct ocfs2_alloc_context; 83 int ocfs2_fill_new_dir(struct ocfs2_super *osb, 84 handle_t *handle, 85 struct inode *parent, 86 struct inode *inode, 87 struct buffer_head *fe_bh, 88 struct ocfs2_alloc_context *data_ac); 89 90 struct ocfs2_dir_block_trailer *ocfs2_dir_trailer_from_size(int blocksize, 91 void *data); 92 #endif /* OCFS2_DIR_H */ 93