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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Matthew Wilcox1366c372016-03-17 14:21:45 -07002#include <linux/gfp.h>
3#include <linux/types.h>
4#include <linux/radix-tree.h>
5#include <linux/rcupdate.h>
6
7struct item {
8 unsigned long index;
Matthew Wilcox101d9602016-12-14 15:08:23 -08009 unsigned int order;
Matthew Wilcox1366c372016-03-17 14:21:45 -070010};
11
Matthew Wilcox101d9602016-12-14 15:08:23 -080012struct item *item_create(unsigned long index, unsigned int order);
13int __item_insert(struct radix_tree_root *root, struct item *item);
Matthew Wilcox1366c372016-03-17 14:21:45 -070014int item_insert(struct radix_tree_root *root, unsigned long index);
Matthew Wilcox4f3755d2016-05-20 17:02:14 -070015int item_insert_order(struct radix_tree_root *root, unsigned long index,
16 unsigned order);
Matthew Wilcox1366c372016-03-17 14:21:45 -070017int item_delete(struct radix_tree_root *root, unsigned long index);
18struct item *item_lookup(struct radix_tree_root *root, unsigned long index);
19
20void item_check_present(struct radix_tree_root *root, unsigned long index);
21void item_check_absent(struct radix_tree_root *root, unsigned long index);
22void item_gang_check_present(struct radix_tree_root *root,
23 unsigned long start, unsigned long nr,
24 int chunk, int hop);
25void item_full_scan(struct radix_tree_root *root, unsigned long start,
26 unsigned long nr, int chunk);
27void item_kill_tree(struct radix_tree_root *root);
28
Matthew Wilcox268f42d2016-12-14 15:08:55 -080029int tag_tagged_items(struct radix_tree_root *, pthread_mutex_t *,
30 unsigned long start, unsigned long end, unsigned batch,
31 unsigned iftag, unsigned thentag);
Matthew Wilcox478922e2016-12-14 15:08:52 -080032unsigned long find_item(struct radix_tree_root *, void *item);
33
Matthew Wilcox1366c372016-03-17 14:21:45 -070034void tag_check(void);
Matthew Wilcox4f3755d2016-05-20 17:02:14 -070035void multiorder_checks(void);
Matthew Wilcox3e3cdc62016-12-14 15:09:10 -080036void iteration_test(unsigned order, unsigned duration);
Konstantin Khlebnikovcfa40bc2016-12-14 15:08:14 -080037void benchmark(void);
Matthew Wilcox0a835c42016-12-20 10:27:56 -050038void idr_checks(void);
39void ida_checks(void);
Matthew Wilcox4ecd9542017-03-03 12:16:10 -050040void ida_thread_tests(void);
Matthew Wilcox1366c372016-03-17 14:21:45 -070041
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 */
Matthew Wilcox148deab2016-12-14 15:08:49 -080053struct radix_tree_node *entry_to_node(void *ptr);
Ross Zwisler0796c582016-05-20 17:02:55 -070054void radix_tree_dump(struct radix_tree_root *root);
Matthew Wilcox1366c372016-03-17 14:21:45 -070055int root_tag_get(struct radix_tree_root *root, unsigned int tag);
Matthew Wilcox0694f0c2016-05-20 17:03:16 -070056unsigned long node_maxindex(struct radix_tree_node *);
57unsigned long shift_maxindex(unsigned int shift);
Matthew Wilcox6df5ee72016-12-14 15:08:05 -080058int radix_tree_cpu_dead(unsigned int cpu);
Matthew Wilcox27916532016-12-14 15:09:04 -080059struct radix_tree_preload {
60 unsigned nr;
61 struct radix_tree_node *nodes;
62};
63extern struct radix_tree_preload radix_tree_preloads;