60 lines · c
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 7struct item {8 struct rcu_head rcu_head;9 unsigned long index;10 unsigned int order;11};12 13struct item *item_create(unsigned long index, unsigned int order);14int item_insert(struct radix_tree_root *root, unsigned long index);15void item_sanity(struct item *item, unsigned long index);16void item_free(struct item *item, unsigned long index);17int item_delete(struct radix_tree_root *root, unsigned long index);18int item_delete_rcu(struct xarray *xa, unsigned long index);19struct item *item_lookup(struct radix_tree_root *root, unsigned long index);20 21void item_check_present(struct radix_tree_root *root, unsigned long index);22void item_check_absent(struct radix_tree_root *root, unsigned long index);23void item_gang_check_present(struct radix_tree_root *root,24 unsigned long start, unsigned long nr,25 int chunk, int hop);26void item_full_scan(struct radix_tree_root *root, unsigned long start,27 unsigned long nr, int chunk);28void item_kill_tree(struct radix_tree_root *root);29 30int tag_tagged_items(struct xarray *, unsigned long start, unsigned long end,31 unsigned batch, xa_mark_t iftag, xa_mark_t thentag);32 33void xarray_tests(void);34void tag_check(void);35void multiorder_checks(void);36void iteration_test(unsigned order, unsigned duration);37void iteration_test2(unsigned duration);38void benchmark(void);39void idr_checks(void);40void ida_tests(void);41 42struct item *43item_tag_set(struct radix_tree_root *root, unsigned long index, int tag);44struct item *45item_tag_clear(struct radix_tree_root *root, unsigned long index, int tag);46int item_tag_get(struct radix_tree_root *root, unsigned long index, int tag);47void tree_verify_min_height(struct radix_tree_root *root, int maxindex);48void verify_tag_consistency(struct radix_tree_root *root, unsigned int tag);49 50extern int nr_allocated;51 52/* Normally private parts of lib/radix-tree.c */53struct radix_tree_node *entry_to_node(void *ptr);54void radix_tree_dump(struct radix_tree_root *root);55int root_tag_get(struct radix_tree_root *root, unsigned int tag);56unsigned long node_maxindex(struct radix_tree_node *);57unsigned long shift_maxindex(unsigned int shift);58int radix_tree_cpu_dead(unsigned int cpu);59extern struct radix_tree_preload radix_tree_preloads;60