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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/fs/hfs/btree.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/fs/hfs/btree.h')
-rw-r--r-- | ANDROID_3.4.5/fs/hfs/btree.h | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/ANDROID_3.4.5/fs/hfs/btree.h b/ANDROID_3.4.5/fs/hfs/btree.h deleted file mode 100644 index 2a1d712f..00000000 --- a/ANDROID_3.4.5/fs/hfs/btree.h +++ /dev/null @@ -1,168 +0,0 @@ -/* - * linux/fs/hfs/btree.h - * - * Copyright (C) 2001 - * Brad Boyer (flar@allandria.com) - * (C) 2003 Ardis Technologies <roman@ardistech.com> - */ - -#include "hfs_fs.h" - -typedef int (*btree_keycmp)(const btree_key *, const btree_key *); - -#define NODE_HASH_SIZE 256 - -/* A HFS BTree held in memory */ -struct hfs_btree { - struct super_block *sb; - struct inode *inode; - btree_keycmp keycmp; - - u32 cnid; - u32 root; - u32 leaf_count; - u32 leaf_head; - u32 leaf_tail; - u32 node_count; - u32 free_nodes; - u32 attributes; - - unsigned int node_size; - unsigned int node_size_shift; - unsigned int max_key_len; - unsigned int depth; - - //unsigned int map1_size, map_size; - struct mutex tree_lock; - - unsigned int pages_per_bnode; - spinlock_t hash_lock; - struct hfs_bnode *node_hash[NODE_HASH_SIZE]; - int node_hash_cnt; -}; - -/* A HFS BTree node in memory */ -struct hfs_bnode { - struct hfs_btree *tree; - - u32 prev; - u32 this; - u32 next; - u32 parent; - - u16 num_recs; - u8 type; - u8 height; - - struct hfs_bnode *next_hash; - unsigned long flags; - wait_queue_head_t lock_wq; - atomic_t refcnt; - unsigned int page_offset; - struct page *page[0]; -}; - -#define HFS_BNODE_ERROR 0 -#define HFS_BNODE_NEW 1 -#define HFS_BNODE_DELETED 2 - -struct hfs_find_data { - btree_key *key; - btree_key *search_key; - struct hfs_btree *tree; - struct hfs_bnode *bnode; - int record; - int keyoffset, keylength; - int entryoffset, entrylength; -}; - - -/* btree.c */ -extern struct hfs_btree *hfs_btree_open(struct super_block *, u32, btree_keycmp); -extern void hfs_btree_close(struct hfs_btree *); -extern void hfs_btree_write(struct hfs_btree *); -extern struct hfs_bnode * hfs_bmap_alloc(struct hfs_btree *); -extern void hfs_bmap_free(struct hfs_bnode *node); - -/* bnode.c */ -extern void hfs_bnode_read(struct hfs_bnode *, void *, int, int); -extern u16 hfs_bnode_read_u16(struct hfs_bnode *, int); -extern u8 hfs_bnode_read_u8(struct hfs_bnode *, int); -extern void hfs_bnode_read_key(struct hfs_bnode *, void *, int); -extern void hfs_bnode_write(struct hfs_bnode *, void *, int, int); -extern void hfs_bnode_write_u16(struct hfs_bnode *, int, u16); -extern void hfs_bnode_write_u8(struct hfs_bnode *, int, u8); -extern void hfs_bnode_clear(struct hfs_bnode *, int, int); -extern void hfs_bnode_copy(struct hfs_bnode *, int, - struct hfs_bnode *, int, int); -extern void hfs_bnode_move(struct hfs_bnode *, int, int, int); -extern void hfs_bnode_dump(struct hfs_bnode *); -extern void hfs_bnode_unlink(struct hfs_bnode *); -extern struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *, u32); -extern struct hfs_bnode *hfs_bnode_find(struct hfs_btree *, u32); -extern void hfs_bnode_unhash(struct hfs_bnode *); -extern void hfs_bnode_free(struct hfs_bnode *); -extern struct hfs_bnode *hfs_bnode_create(struct hfs_btree *, u32); -extern void hfs_bnode_get(struct hfs_bnode *); -extern void hfs_bnode_put(struct hfs_bnode *); - -/* brec.c */ -extern u16 hfs_brec_lenoff(struct hfs_bnode *, u16, u16 *); -extern u16 hfs_brec_keylen(struct hfs_bnode *, u16); -extern int hfs_brec_insert(struct hfs_find_data *, void *, int); -extern int hfs_brec_remove(struct hfs_find_data *); - -/* bfind.c */ -extern int hfs_find_init(struct hfs_btree *, struct hfs_find_data *); -extern void hfs_find_exit(struct hfs_find_data *); -extern int __hfs_brec_find(struct hfs_bnode *, struct hfs_find_data *); -extern int hfs_brec_find(struct hfs_find_data *); -extern int hfs_brec_read(struct hfs_find_data *, void *, int); -extern int hfs_brec_goto(struct hfs_find_data *, int); - - -struct hfs_bnode_desc { - __be32 next; /* (V) Number of the next node at this level */ - __be32 prev; /* (V) Number of the prev node at this level */ - u8 type; /* (F) The type of node */ - u8 height; /* (F) The level of this node (leaves=1) */ - __be16 num_recs; /* (V) The number of records in this node */ - u16 reserved; -} __packed; - -#define HFS_NODE_INDEX 0x00 /* An internal (index) node */ -#define HFS_NODE_HEADER 0x01 /* The tree header node (node 0) */ -#define HFS_NODE_MAP 0x02 /* Holds part of the bitmap of used nodes */ -#define HFS_NODE_LEAF 0xFF /* A leaf (ndNHeight==1) node */ - -struct hfs_btree_header_rec { - __be16 depth; /* (V) The number of levels in this B-tree */ - __be32 root; /* (V) The node number of the root node */ - __be32 leaf_count; /* (V) The number of leaf records */ - __be32 leaf_head; /* (V) The number of the first leaf node */ - __be32 leaf_tail; /* (V) The number of the last leaf node */ - __be16 node_size; /* (F) The number of bytes in a node (=512) */ - __be16 max_key_len; /* (F) The length of a key in an index node */ - __be32 node_count; /* (V) The total number of nodes */ - __be32 free_nodes; /* (V) The number of unused nodes */ - u16 reserved1; - __be32 clump_size; /* (F) clump size. not usually used. */ - u8 btree_type; /* (F) BTree type */ - u8 reserved2; - __be32 attributes; /* (F) attributes */ - u32 reserved3[16]; -} __packed; - -#define HFS_NODE_INDEX 0x00 /* An internal (index) node */ -#define HFS_NODE_HEADER 0x01 /* The tree header node (node 0) */ -#define HFS_NODE_MAP 0x02 /* Holds part of the bitmap of used nodes */ -#define HFS_NODE_LEAF 0xFF /* A leaf (ndNHeight==1) node */ - -#define BTREE_ATTR_BADCLOSE 0x00000001 /* b-tree not closed properly. not - used by hfsplus. */ -#define HFS_TREE_BIGKEYS 0x00000002 /* key length is u16 instead of u8. - used by hfsplus. */ -#define HFS_TREE_VARIDXKEYS 0x00000004 /* variable key length instead of - max key length. use din catalog - b-tree but not in extents - b-tree (hfsplus). */ |