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authorMatthew Wilcox <willy@linux.intel.com>2016-05-20 17:03:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-20 17:58:30 -0700
commit0694f0c9e20c47063e4237e5f6649ae5ce5a369a (patch)
treef7b6e177ecd1ef09d61f374200837e1b233bea94 /tools
parentfb209019c92a9141fd73f3c4928edc1b299b3490 (diff)
downloadlinux-0694f0c9e20c47063e4237e5f6649ae5ce5a369a.tar.gz
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>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/radix-tree/test.c34
-rw-r--r--tools/testing/radix-tree/test.h3
2 files changed, 25 insertions, 12 deletions
diff --git a/tools/testing/radix-tree/test.c b/tools/testing/radix-tree/test.c
index da54f11e8ba7..3004c58b9021 100644
--- a/tools/testing/radix-tree/test.c
+++ b/tools/testing/radix-tree/test.c
@@ -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);
}
diff --git a/tools/testing/radix-tree/test.h b/tools/testing/radix-tree/test.h
index 67217c93fe95..866c8c676aa4 100644
--- a/tools/testing/radix-tree/test.h
+++ b/tools/testing/radix-tree/test.h
@@ -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);