/* * linux/fs/hfs/btree.h * * Copyright (C) 2001 * Brad Boyer (flar@allandria.com) * (C) 2003 Ardis Technologies */ #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 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). */ >logplain -rw-r--r--bcm-cygnus.h3135logplain -rw-r--r--bcm-ns2.h2915logplain -rw-r--r--bcm-nsp.h2148logplain -rw-r--r--bcm21664.h1984logplain -rw-r--r--bcm281xx.h2456logplain -rw-r--r--bcm2835-aux.h635logplain -rw-r--r--bcm2835.h1962logplain -rw-r--r--berlin2.h1034logplain -rw-r--r--berlin2q.h695logplain -rw-r--r--clps711x-clock.h718logplain -rw-r--r--efm32-cmu.h1112logplain -rw-r--r--exynos-audss-clk.h597logplain -rw-r--r--exynos3250.h9083logplain -rw-r--r--exynos4.h8284logplain -rw-r--r--exynos4415.h9828logplain -rw-r--r--exynos5250.h4616logplain -rw-r--r--exynos5260-clk.h14876logplain -rw-r--r--exynos5410.h1689logplain -rw-r--r--exynos5420.h6857logplain -rw-r--r--exynos5433.h45372logplain -rw-r--r--exynos5440.h1141logplain -rw-r--r--exynos7-clk.h5281logplain -rw-r--r--gxbb-aoclkc.h2866logplain -rw-r--r--gxbb-clkc.h592logplain -rw-r--r--hi3516cv300-clock.h1668logplain -rw-r--r--hi3519-clock.h1328logplain -rw-r--r--hi3620-clock.h4496logplain -rw-r--r--hi6220-clock.h4508logplain -rw-r--r--hip04-clock.h1137logplain -rw-r--r--histb-clock.h2012logplain -rw-r--r--hix5hd2-clock.h2415logplain -rw-r--r--imx1-clock.h1055logplain -rw-r--r--imx21-clock.h2461logplain -rw-r--r--imx27-clock.h3494logplain -rw-r--r--imx5-clock.h7212logplain -rw-r--r--imx6qdl-clock.h9593logplain -rw-r--r--imx6sl-clock.h5849logplain -rw-r--r--imx6sx-clock.h9099logplain -rw-r--r--imx6ul-clock.h8203logplain -rw-r--r--imx7d-clock.h15974logplain -rw-r--r--jz4740-cgu.h1028logplain -rw-r--r--jz4780-cgu.h2470logplain -rw-r--r--lpc18xx-ccu.h2134logplain -rw-r--r--lpc18xx-cgu.h1142logplain -rw-r--r--lpc32xx-clock.h1633logplain -rw-r--r--lsi,axm5516-clks.h974logplain -rw-r--r--marvell,mmp2.h2022logplain -rw-r--r--marvell,pxa168.h1654logplain -rw-r--r--marvell,pxa1928.h1535logplain -rw-r--r--marvell,pxa910.h1598logplain -rw-r--r--maxim,max77620.h632logplain -rw-r--r--maxim,max77686.h648logplain -rw-r--r--maxim,max77802.h630logplain -rw-r--r--meson8b-clkc.h523logplain -rw-r--r--microchip,pic32-clock.h1150logplain -rw-r--r--mpc512x-clock.h2236logplain -rw-r--r--mt2701-clk.h13832logplain -rw-r--r--mt8135-clk.h5641logplain -rw-r--r--mt8173-clk.h9293logplain -rw-r--r--oxsemi,ox810se.h1002logplain -rw-r--r--oxsemi,ox820.h1203logplain -rw-r--r--pistachio-clk.h4863logplain -rw-r--r--pxa-clock.h1715logplain -rw-r--r--qcom,gcc-apq8084.h12872logplain -rw-r--r--qcom,gcc-ipq4019.h5423logplain -rw-r--r--qcom,gcc-ipq806x.h8574logplain -rw-r--r--qcom,gcc-mdm9615.h9497logplain -rw-r--r--qcom,gcc-msm8660.h7932logplain -rw-r--r--qcom,gcc-msm8916.h6190logplain -rw-r--r--qcom,gcc-msm8960.h9342logplain -rw-r--r--qcom,gcc-msm8974.h12340logplain -rw-r--r--qcom,gcc-msm8994.h4858logplain -rw-r--r--qcom,gcc-msm8996.h12575logplain -rw-r--r--qcom,lcc-ipq806x.h899logplain -rw-r--r--qcom,lcc-mdm9615.h1701logplain -rw-r--r--qcom,lcc-msm8960.h1616logplain -rw-r--r--qcom,mmcc-apq8084.h5722logplain -rw-r--r--qcom,mmcc-msm8960.h4109logplain -rw-r--r--qcom,mmcc-msm8974.h5223logplain -rw-r--r--qcom,mmcc-msm8996.h9403logplain -rw-r--r--qcom,rpmcc.h2101logplain -rw-r--r--r7s72100-clock.h1218logplain -rw-r--r--r8a73a4-clock.h1596logplain -rw-r--r--r8a7740-clock.h1992logplain -rw-r--r--r8a7743-cpg-mssr.h1269logplain -rw-r--r--r8a7745-cpg-mssr.h1298logplain -rw-r--r--r8a7778-clock.h1855logplain -rw-r--r--r8a7779-clock.h1647logplain -rw-r--r--r8a7790-clock.h4367logplain -rw-r--r--r8a7791-clock.h4388logplain -rw-r--r--r8a7792-clock.h2562logplain -rw-r--r--r8a7793-clock.h4561logplain -rw-r--r--r8a7794-clock.h3679logplain -rw-r--r--r8a7795-cpg-mssr.h1890logplain -rw-r--r--r8a7796-cpg-mssr.h2066logplain -rw-r--r--renesas-cpg-mssr.h542logplain -rw-r--r--rk1108-cru.h6605logplain -rw-r--r--rk3036-cru.h4584logplain -rw-r--r--rk3066a-cru.h1068logplain -rw-r--r--rk3188-cru-common.h6105logplain -rw-r--r--rk3188-cru.h1435logplain