ARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held
[linux/fpc-iii.git] / fs / udf / udf_i.h
blobd1bd31ea724e8804e1467ff955bef46ad4aa0c5a
1 #ifndef _UDF_I_H
2 #define _UDF_I_H
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.
13 * For directories i_mutex is used for all the necessary protection.
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;
40 static inline struct udf_inode_info *UDF_I(struct inode *inode)
42 return list_entry(inode, struct udf_inode_info, vfs_inode);
45 #endif /* _UDF_I_H) */