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 struct rcu_head rcu_head; 9 unsigned long index; 10 unsigned int order; 11 }; 12 13 struct item *item_create(unsigned long index, unsigned int order); 14 int item_insert(struct radix_tree_root *root, unsigned long index); 15 void item_sanity(struct item *item, unsigned long index); 16 void item_free(struct item *item, unsigned long index); 17 int item_delete(struct radix_tree_root *root, unsigned long index); 18 int item_delete_rcu(struct xarray *xa, unsigned long index); 19 struct item *item_lookup(struct radix_tree_root *root, unsigned long index); 20 21 void item_check_present(struct radix_tree_root *root, unsigned long index); 22 void item_check_absent(struct radix_tree_root *root, unsigned long index); 23 void item_gang_check_present(struct radix_tree_root *root, 24 unsigned long start, unsigned long nr, 25 int chunk, int hop); 26 void item_full_scan(struct radix_tree_root *root, unsigned long start, 27 unsigned long nr, int chunk); 28 void item_kill_tree(struct radix_tree_root *root); 29 30 int tag_tagged_items(struct xarray *, unsigned long start, unsigned long end, 31 unsigned batch, xa_mark_t iftag, xa_mark_t thentag); 32 33 void xarray_tests(void); 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_tests(void); 40 41 struct item * 42 item_tag_set(struct radix_tree_root *root, unsigned long index, int tag); 43 struct item * 44 item_tag_clear(struct radix_tree_root *root, unsigned long index, int tag); 45 int item_tag_get(struct radix_tree_root *root, unsigned long index, int tag); 46 void tree_verify_min_height(struct radix_tree_root *root, int maxindex); 47 void verify_tag_consistency(struct radix_tree_root *root, unsigned int tag); 48 49 extern int nr_allocated; 50 51 /* Normally private parts of lib/radix-tree.c */ 52 struct radix_tree_node *entry_to_node(void *ptr); 53 void radix_tree_dump(struct radix_tree_root *root); 54 int root_tag_get(struct radix_tree_root *root, unsigned int tag); 55 unsigned long node_maxindex(struct radix_tree_node *); 56 unsigned long shift_maxindex(unsigned int shift); 57 int radix_tree_cpu_dead(unsigned int cpu); 58 struct radix_tree_preload { 59 unsigned nr; 60 struct radix_tree_node *nodes; 61 }; 62 extern struct radix_tree_preload radix_tree_preloads; 63