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radix tree test suite: remove dependencies on height 

verify_node() can use node->shift instead of the height.

tree_verify_min_height() can be converted over to using node_maxindex()
and shift_maxindex() instead of radix_tree_maxindex().

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jan Kara <jack@suse.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Matthew Wilcox 2016-05-20 17:03:16 -07:00 committed by Linus Torvalds
parent fb209019c9
commit 0694f0c9e2
2 changed files with 25 additions and 12 deletions
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34
tools/testing/radix-tree/test.c
View File

@ -143,7 +143,7 @@ void item_full_scan(struct radix_tree_root *root, unsigned long start,
}
static int verify_node(struct radix_tree_node *slot, unsigned int tag,
unsigned int height, int tagged)
int tagged)
{
int anyset = 0;
int i;
@ -159,7 +159,8 @@ static int verify_node(struct radix_tree_node *slot, unsigned int tag,
}
}
if (tagged != anyset) {
printf("tag: %u, height %u, tagged: %d, anyset: %d\n", tag, height, 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++)
@ -171,10 +172,10 @@ static int verify_node(struct radix_tree_node *slot, unsigned int tag,
assert(tagged == anyset);
/* Go for next level */
if (height > 1) {
if (slot->shift > 0) {
for (i = 0; i < RADIX_TREE_MAP_SIZE; i++)
if (slot->slots[i])
if (verify_node(slot->slots[i], tag, height - 1,
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++) {
@ -191,9 +192,10 @@ static int verify_node(struct radix_tree_node *slot, unsigned int tag,
void verify_tag_consistency(struct radix_tree_root *root, unsigned int tag)
{
if (!root->height)
struct radix_tree_node *node = root->rnode;
if (!radix_tree_is_indirect_ptr(node))
return;
verify_node(root->rnode, tag, root->height, !!root_tag_get(root, tag));
verify_node(node, tag, !!root_tag_get(root, tag));
}
void item_kill_tree(struct radix_tree_root *root)
@ -218,9 +220,19 @@ void item_kill_tree(struct radix_tree_root *root)
void tree_verify_min_height(struct radix_tree_root *root, int maxindex)
{
assert(radix_tree_maxindex(root->height) >= maxindex);
if (root->height > 1)
assert(radix_tree_maxindex(root->height-1) < maxindex);
else if (root->height == 1)
assert(radix_tree_maxindex(root->height-1) <= maxindex);
unsigned shift;
struct radix_tree_node *node = root->rnode;
if (!radix_tree_is_indirect_ptr(node)) {
assert(maxindex == 0);
return;
}
node = indirect_to_ptr(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);
}

3
tools/testing/radix-tree/test.h
View File

@ -42,4 +42,5 @@ extern int nr_allocated;
void *indirect_to_ptr(void *ptr);
void radix_tree_dump(struct radix_tree_root *root);
int root_tag_get(struct radix_tree_root *root, unsigned int tag);
unsigned long radix_tree_maxindex(unsigned int height);
unsigned long node_maxindex(struct radix_tree_node *);
unsigned long shift_maxindex(unsigned int shift);