include/linux/btree-128.h

   1 extern struct btree_geo btree_geo128;
   2
   3 struct btree_head128 { struct btree_head h; };
   4
   5 static inline void btree_init_mempool128(struct btree_head128 *head,
   6                                          mempool_t *mempool)
   7 {
   8         btree_init_mempool(&head->h, mempool);
   9 }
  10
  11 static inline int btree_init128(struct btree_head128 *head)
  12 {
  13         return btree_init(&head->h);
  14 }
  15
  16 static inline void btree_destroy128(struct btree_head128 *head)
  17 {
  18         btree_destroy(&head->h);
  19 }
  20
  21 static inline void *btree_lookup128(struct btree_head128 *head, u64 k1, u64 k2)
  22 {
  23         u64 key[2] = {k1, k2};
  24         return btree_lookup(&head->h, &btree_geo128, (unsigned long *)&key);
  25 }
  26
  27 static inline void *btree_get_prev128(struct btree_head128 *head,
  28                                       u64 *k1, u64 *k2)
  29 {
  30         u64 key[2] = {*k1, *k2};
  31         void *val;
  32
  33         val = btree_get_prev(&head->h, &btree_geo128,
  34                              (unsigned long *)&key);
  35         *k1 = key[0];
  36         *k2 = key[1];
  37         return val;
  38 }
  39
  40 static inline int btree_insert128(struct btree_head128 *head, u64 k1, u64 k2,
  41                                   void *val, gfp_t gfp)
  42 {
  43         u64 key[2] = {k1, k2};
  44         return btree_insert(&head->h, &btree_geo128,
  45                             (unsigned long *)&key, val, gfp);
  46 }
  47
  48 static inline int btree_update128(struct btree_head128 *head, u64 k1, u64 k2,
  49                                   void *val)
  50 {
  51         u64 key[2] = {k1, k2};
  52         return btree_update(&head->h, &btree_geo128,
  53                             (unsigned long *)&key, val);
  54 }
  55
  56 static inline void *btree_remove128(struct btree_head128 *head, u64 k1, u64 k2)
  57 {
  58         u64 key[2] = {k1, k2};
  59         return btree_remove(&head->h, &btree_geo128, (unsigned long *)&key);
  60 }
  61
  62 static inline void *btree_last128(struct btree_head128 *head, u64 *k1, u64 *k2)
  63 {
  64         u64 key[2];
  65         void *val;
  66
  67         val = btree_last(&head->h, &btree_geo128, (unsigned long *)&key[0]);
  68         if (val) {
  69                 *k1 = key[0];
  70                 *k2 = key[1];
  71         }
  72
  73         return val;
  74 }
  75
  76 static inline int btree_merge128(struct btree_head128 *target,
  77                                  struct btree_head128 *victim,
  78                                  gfp_t gfp)
  79 {
  80         return btree_merge(&target->h, &victim->h, &btree_geo128, gfp);
  81 }
  82
  83 void visitor128(void *elem, unsigned long opaque, unsigned long *__key,
  84                 size_t index, void *__func);
  85
  86 typedef void (*visitor128_t)(void *elem, unsigned long opaque,
  87                              u64 key1, u64 key2, size_t index);
  88
  89 static inline size_t btree_visitor128(struct btree_head128 *head,
  90                                       unsigned long opaque,
  91                                       visitor128_t func2)
  92 {
  93         return btree_visitor(&head->h, &btree_geo128, opaque,
  94                              visitor128, func2);
  95 }
  96
  97 static inline size_t btree_grim_visitor128(struct btree_head128 *head,
  98                                            unsigned long opaque,
  99                                            visitor128_t func2)
 100 {
 101         return btree_grim_visitor(&head->h, &btree_geo128, opaque,
 102                                   visitor128, func2);
 103 }
 104
 105 #define btree_for_each_safe128(head, k1, k2, val)       \
 106         for (val = btree_last128(head, &k1, &k2);       \
 107              val;                                       \
 108              val = btree_get_prev128(head, &k1, &k2))
 109