mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-23 10:28:51 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* BTRFS filesystem implementation for U-Boot
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*
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* 2017 Marek Behun, CZ.NIC, marek.behun@nic.cz
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*/
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#ifndef __BTRFS_BTRFS_H__
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#define __BTRFS_BTRFS_H__
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#include <linux/rbtree.h>
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#include "conv-funcs.h"
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struct btrfs_info {
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struct btrfs_super_block sb;
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struct btrfs_root_backup *root_backup;
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struct btrfs_root tree_root;
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struct btrfs_root fs_root;
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struct btrfs_root chunk_root;
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struct rb_root chunks_root;
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};
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extern struct btrfs_info btrfs_info;
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/* hash.c */
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void btrfs_hash_init(void);
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u32 btrfs_crc32c(u32, const void *, size_t);
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u32 btrfs_csum_data(char *, u32, size_t);
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void btrfs_csum_final(u32, void *);
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static inline u64 btrfs_name_hash(const char *name, int len)
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{
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return btrfs_crc32c((u32) ~1, name, len);
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}
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/* dev.c */
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extern struct blk_desc *btrfs_blk_desc;
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extern disk_partition_t *btrfs_part_info;
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int btrfs_devread(u64, int, void *);
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/* chunk-map.c */
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u64 btrfs_map_logical_to_physical(u64);
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int btrfs_chunk_map_init(void);
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void btrfs_chunk_map_exit(void);
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int btrfs_read_chunk_tree(void);
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/* compression.c */
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u32 btrfs_decompress(u8 type, const char *, u32, char *, u32);
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/* super.c */
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int btrfs_read_superblock(void);
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/* dir-item.c */
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typedef int (*btrfs_readdir_callback_t)(const struct btrfs_root *,
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struct btrfs_dir_item *);
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int btrfs_lookup_dir_item(const struct btrfs_root *, u64, const char *, int,
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struct btrfs_dir_item *);
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int btrfs_readdir(const struct btrfs_root *, u64, btrfs_readdir_callback_t);
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/* root.c */
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int btrfs_find_root(u64, struct btrfs_root *, struct btrfs_root_item *);
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u64 btrfs_lookup_root_ref(u64, struct btrfs_root_ref *, char *);
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/* inode.c */
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u64 btrfs_lookup_inode_ref(struct btrfs_root *, u64, struct btrfs_inode_ref *,
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char *);
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int btrfs_lookup_inode(const struct btrfs_root *, struct btrfs_key *,
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struct btrfs_inode_item *, struct btrfs_root *);
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int btrfs_readlink(const struct btrfs_root *, u64, char *);
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u64 btrfs_lookup_path(struct btrfs_root *, u64, const char *, u8 *,
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struct btrfs_inode_item *, int);
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u64 btrfs_file_read(const struct btrfs_root *, u64, u64, u64, char *);
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/* subvolume.c */
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u64 btrfs_get_default_subvol_objectid(void);
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/* extent-io.c */
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u64 btrfs_read_extent_inline(struct btrfs_path *,
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struct btrfs_file_extent_item *, u64, u64,
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char *);
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u64 btrfs_read_extent_reg(struct btrfs_path *, struct btrfs_file_extent_item *,
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u64, u64, char *);
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#endif /* !__BTRFS_BTRFS_H__ */
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