projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 15aebd28 CH |
1 | #ifndef _UDF_I_H |
| 2 | #define _UDF_I_H | |
| 3 | ||
| 4d0fb621 AIB |
4 | /* |
| 5 | * The i_data_sem and i_mutex serve for protection of allocation information | |
| 6 | * of a regular files and symlinks. This includes all extents belonging to | |
| 7 | * the file/symlink, a fact whether data are in-inode or in external data | |
| 8 | * blocks, preallocation, goal block information... When extents are read, | |
| 9 | * i_mutex or i_data_sem must be held (for reading is enough in case of | |
| 10 | * i_data_sem). When extents are changed, i_data_sem must be held for writing | |
| 11 | * and also i_mutex must be held. | |
| 12 | * | |
| 13 | * For directories i_mutex is used for all the necessary protection. | |
| 14 | */ | |
| 15 | ||
| 15aebd28 CH |
16 | struct udf_inode_info { |
| 17 | struct timespec i_crtime; | |
| 18 | /* Physical address of inode */ | |
| 5ca4e4be | 19 | struct kernel_lb_addr i_location; |
| 15aebd28 CH |
20 | __u64 i_unique; |
| 21 | __u32 i_lenEAttr; | |
| 22 | __u32 i_lenAlloc; | |
| 23 | __u64 i_lenExtents; | |
| 24 | __u32 i_next_alloc_block; | |
| 25 | __u32 i_next_alloc_goal; | |
| d5e2cf07 | 26 | __u32 i_checkpoint; |
| 15aebd28 | 27 | unsigned i_alloc_type : 3; |
| d652eefb | 28 | unsigned i_efe : 1; /* extendedFileEntry */ |
| 29 | unsigned i_use : 1; /* unallocSpaceEntry */ | |
| 15aebd28 CH |
30 | unsigned i_strat4096 : 1; |
| 31 | unsigned reserved : 26; | |
| 32 | union { | |
| 5ca4e4be PE |
33 | struct short_ad *i_sad; |
| 34 | struct long_ad *i_lad; | |
| 15aebd28 CH |
35 | __u8 *i_data; |
| 36 | } i_ext; | |
| 4d0fb621 | 37 | struct rw_semaphore i_data_sem; |
| 15aebd28 CH |
38 | struct inode vfs_inode; |
| 39 | }; | |
| 1da177e4 | 40 | |
| 1da177e4 LT |
41 | static inline struct udf_inode_info *UDF_I(struct inode *inode) |
| 42 | { | |
| 43 | return list_entry(inode, struct udf_inode_info, vfs_inode); | |
| 44 | } | |
| 45 | ||
| 15aebd28 | 46 | #endif /* _UDF_I_H) */ |