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| 1 | #ifndef _UDF_I_H |
| 2 | #define _UDF_I_H |
| 3 | |
| 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 | |
| 16 | struct udf_inode_info { |
| 17 | struct timespec i_crtime; |
| 18 | /* Physical address of inode */ |
| 19 | struct kernel_lb_addr i_location; |
| 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; |
| 26 | unsigned i_alloc_type : 3; |
| 27 | unsigned i_efe : 1; /* extendedFileEntry */ |
| 28 | unsigned i_use : 1; /* unallocSpaceEntry */ |
| 29 | unsigned i_strat4096 : 1; |
| 30 | unsigned reserved : 26; |
| 31 | union { |
| 32 | struct short_ad *i_sad; |
| 33 | struct long_ad *i_lad; |
| 34 | __u8 *i_data; |
| 35 | } i_ext; |
| 36 | struct rw_semaphore i_data_sem; |
| 37 | struct inode vfs_inode; |
| 38 | }; |
| 39 | |
| 40 | static inline struct udf_inode_info *UDF_I(struct inode *inode) |
| 41 | { |
| 42 | return list_entry(inode, struct udf_inode_info, vfs_inode); |
| 43 | } |
| 44 | |
| 45 | #endif /* _UDF_I_H) */ |
| 46 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9
