Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef _UDF_I_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _UDF_I_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) struct extent_position {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 	struct buffer_head *bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 	uint32_t offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	struct kernel_lb_addr block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) struct udf_ext_cache {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	/* Extent position */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	struct extent_position epos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	/* Start logical offset in bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	loff_t lstart;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  * The i_data_sem and i_mutex serve for protection of allocation information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * of a regular files and symlinks. This includes all extents belonging to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * the file/symlink, a fact whether data are in-inode or in external data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * blocks, preallocation, goal block information... When extents are read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  * i_mutex or i_data_sem must be held (for reading is enough in case of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  * i_data_sem). When extents are changed, i_data_sem must be held for writing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  * and also i_mutex must be held.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  * For directories i_mutex is used for all the necessary protection.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct udf_inode_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	struct timespec64	i_crtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	/* Physical address of inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	struct kernel_lb_addr		i_location;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	__u64			i_unique;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	__u32			i_lenEAttr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	__u32			i_lenAlloc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	__u64			i_lenExtents;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	__u32			i_next_alloc_block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	__u32			i_next_alloc_goal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	__u32			i_checkpoint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	__u32			i_extraPerms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	unsigned		i_alloc_type : 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	unsigned		i_efe : 1;	/* extendedFileEntry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	unsigned		i_use : 1;	/* unallocSpaceEntry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	unsigned		i_strat4096 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	unsigned		i_streamdir : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	unsigned		reserved : 25;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	__u8			*i_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	struct kernel_lb_addr	i_locStreamdir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	__u64			i_lenStreams;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	struct rw_semaphore	i_data_sem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	struct udf_ext_cache cached_extent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	/* Spinlock for protecting extent cache */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	spinlock_t i_extent_cache_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	struct inode vfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static inline struct udf_inode_info *UDF_I(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	return container_of(inode, struct udf_inode_info, vfs_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #endif /* _UDF_I_H) */