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#include <stdlib.h>
#include <assert.h>
#include <stdio.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/bitops.h>
#include "test.h"
struct item *
item_tag_set(struct radix_tree_root *root, unsigned long index, int tag)
{
return radix_tree_tag_set(root, index, tag);
}
struct item *
item_tag_clear(struct radix_tree_root *root, unsigned long index, int tag)
{
return radix_tree_tag_clear(root, index, tag);
}
int item_tag_get(struct radix_tree_root *root, unsigned long index, int tag)
{
return radix_tree_tag_get(root, index, tag);
}
int __item_insert(struct radix_tree_root *root, struct item *item,
unsigned order)
{
return __radix_tree_insert(root, item->index, order, item);
}
int item_insert(struct radix_tree_root *root, unsigned long index)
{
return __item_insert(root, item_create(index), 0);
}
int item_insert_order(struct radix_tree_root *root, unsigned long index,
unsigned order)
{
return __item_insert(root, item_create(index), order);
}
int item_delete(struct radix_tree_root *root, unsigned long index)
{
struct item *item = radix_tree_delete(root, index);
if (item) {
assert(item->index == index);
free(item);
return 1;
}
return 0;
}
struct item *item_create(unsigned long index)
{
struct item *ret = malloc(sizeof(*ret));
ret->index = index;
return ret;
}
void item_check_present(struct radix_tree_root *root, unsigned long index)
{
struct item *item;
item = radix_tree_lookup(root, index);
assert(item != 0);
assert(item->index == index);
}
struct item *item_lookup(struct radix_tree_root *root, unsigned long index)
{
return radix_tree_lookup(root, index);
}
void item_check_absent(struct radix_tree_root *root, unsigned long index)
{
struct item *item;
item = radix_tree_lookup(root, index);
assert(item == 0);
}
/*
* Scan only the passed (start, start+nr] for present items
*/
void item_gang_check_present(struct radix_tree_root *root,
unsigned long start, unsigned long nr,
int chunk, int hop)
{
struct item *items[chunk];
unsigned long into;
for (into = 0; into < nr; ) {
int nfound;
int nr_to_find = chunk;
int i;
if (nr_to_find > (nr - into))
nr_to_find = nr - into;
nfound = radix_tree_gang_lookup(root, (void **)items,
start + into, nr_to_find);
assert(nfound == nr_to_find);
for (i = 0; i < nfound; i++)
assert(items[i]->index == start + into + i);
into += hop;
}
}
/*
* Scan the entire tree, only expecting present items (start, start+nr]
*/
void item_full_scan(struct radix_tree_root *root, unsigned long start,
unsigned long nr, int chunk)
{
struct item *items[chunk];
unsigned long into = 0;
unsigned long this_index = start;
int nfound;
int i;
// printf("%s(0x%08lx, 0x%08lx, %d)\n", __FUNCTION__, start, nr, chunk);
while ((nfound = radix_tree_gang_lookup(root, (void **)items, into,
chunk))) {
// printf("At 0x%08lx, nfound=%d\n", into, nfound);
for (i = 0; i < nfound; i++) {
assert(items[i]->index == this_index);
this_index++;
}
// printf("Found 0x%08lx->0x%08lx\n",
// items[0]->index, items[nfound-1]->index);
into = this_index;
}
if (chunk)
assert(this_index == start + nr);
nfound = radix_tree_gang_lookup(root, (void **)items,
this_index, chunk);
assert(nfound == 0);
}
static int verify_node(struct radix_tree_node *slot, unsigned int tag,
int tagged)
{
int anyset = 0;
int i;
int j;
slot = entry_to_node(slot);
/* Verify consistency at this level */
for (i = 0; i < RADIX_TREE_TAG_LONGS; i++) {
if (slot->tags[tag][i]) {
anyset = 1;
break;
}
}
if (tagged != anyset) {
printf("tag: %u, shift %u, tagged: %d, anyset: %d\n",
tag, slot->shift, tagged, anyset);
for (j = 0; j < RADIX_TREE_MAX_TAGS; j++) {
printf("tag %d: ", j);
for (i = 0; i < RADIX_TREE_TAG_LONGS; i++)
printf("%016lx ", slot->tags[j][i]);
printf("\n");
}
return 1;
}
assert(tagged == anyset);
/* Go for next level */
if (slot->shift > 0) {
for (i = 0; i < RADIX_TREE_MAP_SIZE; i++)
if (slot->slots[i])
if (verify_node(slot->slots[i], tag,
!!test_bit(i, slot->tags[tag]))) {
printf("Failure at off %d\n", i);
for (j = 0; j < RADIX_TREE_MAX_TAGS; j++) {
printf("tag %d: ", j);
for (i = 0; i < RADIX_TREE_TAG_LONGS; i++)
printf("%016lx ", slot->tags[j][i]);
printf("\n");
}
return 1;
}
}
return 0;
}
void verify_tag_consistency(struct radix_tree_root *root, unsigned int tag)
{
struct radix_tree_node *node = root->rnode;
if (!radix_tree_is_internal_node(node))
return;
verify_node(node, tag, !!root_tag_get(root, tag));
}
void item_kill_tree(struct radix_tree_root *root)
{
struct item *items[32];
int nfound;
while ((nfound = radix_tree_gang_lookup(root, (void **)items, 0, 32))) {
int i;
for (i = 0; i < nfound; i++) {
void *ret;
ret = radix_tree_delete(root, items[i]->index);
assert(ret == items[i]);
free(items[i]);
}
}
assert(radix_tree_gang_lookup(root, (void **)items, 0, 32) == 0);
assert(root->rnode == NULL);
}
void tree_verify_min_height(struct radix_tree_root *root, int maxindex)
{
unsigned shift;
struct radix_tree_node *node = root->rnode;
if (!radix_tree_is_internal_node(node)) {
assert(maxindex == 0);
return;
}
node = entry_to_node(node);
assert(maxindex <= node_maxindex(node));
shift = node->shift;
if (shift > 0)
assert(maxindex > shift_maxindex(shift - RADIX_TREE_MAP_SHIFT));
else
assert(maxindex > 0);
}
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