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fs/udf/udf_i.h
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#ifndef _UDF_I_H #define _UDF_I_H |
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/* * 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. */ |
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struct udf_inode_info { struct timespec i_crtime; /* Physical address of inode */ |
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struct kernel_lb_addr i_location; |
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__u64 i_unique; __u32 i_lenEAttr; __u32 i_lenAlloc; __u64 i_lenExtents; __u32 i_next_alloc_block; __u32 i_next_alloc_goal; unsigned i_alloc_type : 3; |
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unsigned i_efe : 1; /* extendedFileEntry */ unsigned i_use : 1; /* unallocSpaceEntry */ |
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unsigned i_strat4096 : 1; unsigned reserved : 26; union { |
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struct short_ad *i_sad; struct long_ad *i_lad; |
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__u8 *i_data; } i_ext; |
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struct rw_semaphore i_data_sem; |
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struct inode vfs_inode; }; |
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static inline struct udf_inode_info *UDF_I(struct inode *inode) { return list_entry(inode, struct udf_inode_info, vfs_inode); } |
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#endif /* _UDF_I_H) */ |