btrfs_inode.h 2.1 KB

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  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. #ifndef __BTRFS_I__
  19. #define __BTRFS_I__
  20. #include "extent_map.h"
  21. #include "extent_io.h"
  22. #include "ordered-data.h"
  23. /* in memory btrfs inode */
  24. struct btrfs_inode {
  25. struct btrfs_root *root;
  26. struct btrfs_block_group_cache *block_group;
  27. struct btrfs_key location;
  28. struct extent_map_tree extent_tree;
  29. struct extent_io_tree io_tree;
  30. struct extent_io_tree io_failure_tree;
  31. struct mutex csum_mutex;
  32. struct mutex extent_mutex;
  33. struct mutex log_mutex;
  34. struct inode vfs_inode;
  35. struct btrfs_ordered_inode_tree ordered_tree;
  36. struct posix_acl *i_acl;
  37. struct posix_acl *i_default_acl;
  38. /* for keeping track of orphaned inodes */
  39. struct list_head i_orphan;
  40. struct list_head delalloc_inodes;
  41. /* full 64 bit generation number */
  42. u64 generation;
  43. /*
  44. * transid of the trans_handle that last modified this inode
  45. */
  46. u64 last_trans;
  47. /*
  48. * transid that last logged this inode
  49. */
  50. u64 logged_trans;
  51. /* trans that last made a change that should be fully fsync'd */
  52. u64 log_dirty_trans;
  53. u64 delalloc_bytes;
  54. u64 disk_i_size;
  55. u32 flags;
  56. /*
  57. * if this is a directory then index_cnt is the counter for the index
  58. * number for new files that are created
  59. */
  60. u64 index_cnt;
  61. };
  62. static inline struct btrfs_inode *BTRFS_I(struct inode *inode)
  63. {
  64. return container_of(inode, struct btrfs_inode, vfs_inode);
  65. }
  66. static inline void btrfs_i_size_write(struct inode *inode, u64 size)
  67. {
  68. inode->i_size = size;
  69. BTRFS_I(inode)->disk_i_size = size;
  70. }
  71. #endif