| * The i_data_sem and i_mutex serve for protection of allocation information |
| * of a regular files and symlinks. This includes all extents belonging to |
| * the file/symlink, a fact whether data are in-inode or in external data |
| * blocks, preallocation, goal block information... When extents are read, |
| * i_mutex or i_data_sem must be held (for reading is enough in case of |
| * i_data_sem). When extents are changed, i_data_sem must be held for writing |
| * and also i_mutex must be held. |
| * For directories i_mutex is used for all the necessary protection. |
| struct timespec i_crtime; |
| /* Physical address of inode */ |
| struct kernel_lb_addr i_location; |
| __u32 i_next_alloc_block; |
| unsigned i_alloc_type : 3; |
| unsigned i_efe : 1; /* extendedFileEntry */ |
| unsigned i_use : 1; /* unallocSpaceEntry */ |
| unsigned i_strat4096 : 1; |
| struct rw_semaphore i_data_sem; |
| static inline struct udf_inode_info *UDF_I(struct inode *inode) |
| return list_entry(inode, struct udf_inode_info, vfs_inode); |