1 /* 2 * Copyright (C) 2007 Oracle. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public 6 * License v2 as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public 14 * License along with this program; if not, write to the 15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 16 * Boston, MA 021110-1307, USA. 17 */ 18 19 #ifndef __BTRFS_I__ 20 #define __BTRFS_I__ 21 22 #include "extent_map.h" 23 #include "extent_io.h" 24 #include "ordered-data.h" 25 26 /* in memory btrfs inode */ 27 struct btrfs_inode { 28 struct btrfs_root *root; 29 struct btrfs_block_group_cache *block_group; 30 struct btrfs_key location; 31 struct extent_map_tree extent_tree; 32 struct extent_io_tree io_tree; 33 struct extent_io_tree io_failure_tree; 34 struct mutex csum_mutex; 35 struct mutex extent_mutex; 36 struct mutex log_mutex; 37 struct inode vfs_inode; 38 struct btrfs_ordered_inode_tree ordered_tree; 39 40 struct posix_acl *i_acl; 41 struct posix_acl *i_default_acl; 42 43 /* for keeping track of orphaned inodes */ 44 struct list_head i_orphan; 45 46 struct list_head delalloc_inodes; 47 48 /* full 64 bit generation number */ 49 u64 generation; 50 51 /* 52 * transid of the trans_handle that last modified this inode 53 */ 54 u64 last_trans; 55 /* 56 * transid that last logged this inode 57 */ 58 u64 logged_trans; 59 u64 delalloc_bytes; 60 u64 disk_i_size; 61 u32 flags; 62 63 /* 64 * if this is a directory then index_cnt is the counter for the index 65 * number for new files that are created 66 */ 67 u64 index_cnt; 68 }; 69 70 static inline struct btrfs_inode *BTRFS_I(struct inode *inode) 71 { 72 return container_of(inode, struct btrfs_inode, vfs_inode); 73 } 74 75 static inline void btrfs_i_size_write(struct inode *inode, u64 size) 76 { 77 inode->i_size = size; 78 BTRFS_I(inode)->disk_i_size = size; 79 } 80 81 82 #endif 83