1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #include <linux/gfp.h> 3 #include <linux/types.h> 4 #include <linux/radix-tree.h> 5 #include <linux/rcupdate.h> 6 7 struct item { 8 unsigned long index; 9 unsigned int order; 10 }; 11 12 struct item *item_create(unsigned long index, unsigned int order); 13 int __item_insert(struct radix_tree_root *root, struct item *item); 14 int item_insert(struct radix_tree_root *root, unsigned long index); 15 int item_insert_order(struct radix_tree_root *root, unsigned long index, 16 unsigned order); 17 int item_delete(struct radix_tree_root *root, unsigned long index); 18 struct item *item_lookup(struct radix_tree_root *root, unsigned long index); 19 20 void item_check_present(struct radix_tree_root *root, unsigned long index); 21 void item_check_absent(struct radix_tree_root *root, unsigned long index); 22 void item_gang_check_present(struct radix_tree_root *root, 23 unsigned long start, unsigned long nr, 24 int chunk, int hop); 25 void item_full_scan(struct radix_tree_root *root, unsigned long start, 26 unsigned long nr, int chunk); 27 void item_kill_tree(struct radix_tree_root *root); 28 29 int tag_tagged_items(struct radix_tree_root *, pthread_mutex_t *, 30 unsigned long start, unsigned long end, unsigned batch, 31 unsigned iftag, unsigned thentag); 32 unsigned long find_item(struct radix_tree_root *, void *item); 33 34 void tag_check(void); 35 void multiorder_checks(void); 36 void iteration_test(unsigned order, unsigned duration); 37 void benchmark(void); 38 void idr_checks(void); 39 void ida_checks(void); 40 void ida_thread_tests(void); 41 42 struct item * 43 item_tag_set(struct radix_tree_root *root, unsigned long index, int tag); 44 struct item * 45 item_tag_clear(struct radix_tree_root *root, unsigned long index, int tag); 46 int item_tag_get(struct radix_tree_root *root, unsigned long index, int tag); 47 void tree_verify_min_height(struct radix_tree_root *root, int maxindex); 48 void verify_tag_consistency(struct radix_tree_root *root, unsigned int tag); 49 50 extern int nr_allocated; 51 52 /* Normally private parts of lib/radix-tree.c */ 53 struct radix_tree_node *entry_to_node(void *ptr); 54 void radix_tree_dump(struct radix_tree_root *root); 55 int root_tag_get(struct radix_tree_root *root, unsigned int tag); 56 unsigned long node_maxindex(struct radix_tree_node *); 57 unsigned long shift_maxindex(unsigned int shift); 58 int radix_tree_cpu_dead(unsigned int cpu); 59 struct radix_tree_preload { 60 unsigned nr; 61 struct radix_tree_node *nodes; 62 }; 63 extern struct radix_tree_preload radix_tree_preloads; 64