projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 15aebd28 CH |
2 | #ifndef _UDF_I_H |
| 3 | #define _UDF_I_H | |
| 4 | ||
| 99600051 NJ |
5 | struct extent_position { |
| 6 | struct buffer_head *bh; | |
| 7 | uint32_t offset; | |
| 8 | struct kernel_lb_addr block; | |
| 9 | }; | |
| 10 | ||
| 11 | struct udf_ext_cache { | |
| 12 | /* Extent position */ | |
| 13 | struct extent_position epos; | |
| 14 | /* Start logical offset in bytes */ | |
| 15 | loff_t lstart; | |
| 16 | }; | |
| 17 | ||
| 4d0fb621 AIB |
18 | /* |
| 19 | * The i_data_sem and i_mutex serve for protection of allocation information | |
| 20 | * of a regular files and symlinks. This includes all extents belonging to | |
| 21 | * the file/symlink, a fact whether data are in-inode or in external data | |
| 22 | * blocks, preallocation, goal block information... When extents are read, | |
| 23 | * i_mutex or i_data_sem must be held (for reading is enough in case of | |
| 24 | * i_data_sem). When extents are changed, i_data_sem must be held for writing | |
| 25 | * and also i_mutex must be held. | |
| 26 | * | |
| 27 | * For directories i_mutex is used for all the necessary protection. | |
| 28 | */ | |
| 29 | ||
| 15aebd28 | 30 | struct udf_inode_info { |
| c3b9cecd | 31 | struct timespec64 i_crtime; |
| 15aebd28 | 32 | /* Physical address of inode */ |
| 5ca4e4be | 33 | struct kernel_lb_addr i_location; |
| 15aebd28 CH |
34 | __u64 i_unique; |
| 35 | __u32 i_lenEAttr; | |
| 36 | __u32 i_lenAlloc; | |
| 37 | __u64 i_lenExtents; | |
| 38 | __u32 i_next_alloc_block; | |
| 39 | __u32 i_next_alloc_goal; | |
| d5e2cf07 | 40 | __u32 i_checkpoint; |
| c3367a1b | 41 | __u32 i_extraPerms; |
| 15aebd28 | 42 | unsigned i_alloc_type : 3; |
| d652eefb | 43 | unsigned i_efe : 1; /* extendedFileEntry */ |
| 44 | unsigned i_use : 1; /* unallocSpaceEntry */ | |
| 15aebd28 | 45 | unsigned i_strat4096 : 1; |
| ab9a3a73 | 46 | unsigned i_streamdir : 1; |
| fc8033a3 JK |
47 | unsigned i_hidden : 1; /* hidden system inode */ |
| 48 | unsigned reserved : 24; | |
| 382a2287 | 49 | __u8 *i_data; |
| ab9a3a73 SM |
50 | struct kernel_lb_addr i_locStreamdir; |
| 51 | __u64 i_lenStreams; | |
| 4d0fb621 | 52 | struct rw_semaphore i_data_sem; |
| 99600051 NJ |
53 | struct udf_ext_cache cached_extent; |
| 54 | /* Spinlock for protecting extent cache */ | |
| 55 | spinlock_t i_extent_cache_lock; | |
| 15aebd28 CH |
56 | struct inode vfs_inode; |
| 57 | }; | |
| 1da177e4 | 58 | |
| 1da177e4 LT |
59 | static inline struct udf_inode_info *UDF_I(struct inode *inode) |
| 60 | { | |
| db6172c4 | 61 | return container_of(inode, struct udf_inode_info, vfs_inode); |
| 1da177e4 LT |
62 | } |
| 63 | ||
| 15aebd28 | 64 | #endif /* _UDF_I_H) */ |