From: Matthew Wilcox <mawil...@microsoft.com>
The page cache was the only user of this interface and it has now
been converted to the XArray. Transform the test into a test of
xas_init_tags().
Signed-off-by: Matthew Wilcox <mawil...@microsoft.com>
---
include/linux/radix-tree.h | 2 --
lib/radix-tree.c | 13 -----------
tools/testing/radix-tree/tag_check.c | 32 +++++++++++++---------------
3 files changed, 15 insertions(+), 32 deletions(-)
diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
index f8ef267e4975..27c15990951d 100644
--- a/include/linux/radix-tree.h
+++ b/include/linux/radix-tree.h
@@ -252,8 +252,6 @@ void radix_tree_iter_delete(struct radix_tree_root *,
struct radix_tree_iter *iter, void __rcu **slot);
void *radix_tree_delete_item(struct radix_tree_root *, unsigned long, void *);
void *radix_tree_delete(struct radix_tree_root *, unsigned long);
-void radix_tree_clear_tags(struct radix_tree_root *, struct radix_tree_node *,
- void __rcu **slot);
unsigned int radix_tree_gang_lookup(const struct radix_tree_root *,
void **results, unsigned long first_index,
unsigned int max_items);
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index ad03dc0c562f..101f1c28e1b6 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -1711,19 +1711,6 @@ void *radix_tree_delete(struct radix_tree_root *root,
unsigned long index)
}
EXPORT_SYMBOL(radix_tree_delete);
-void radix_tree_clear_tags(struct radix_tree_root *root,
- struct radix_tree_node *node,
- void __rcu **slot)
-{
- if (node) {
- unsigned int tag, offset = get_slot_offset(node, slot);
- for (tag = 0; tag < RADIX_TREE_MAX_TAGS; tag++)
- node_tag_clear(root, node, tag, offset);
- } else {
- root_tag_clear_all(root);
- }
-}
-
/**
* radix_tree_tagged - test whether any items in the tree are tagged
* @root: radix tree root
diff --git a/tools/testing/radix-tree/tag_check.c
b/tools/testing/radix-tree/tag_check.c
index 543181e4847b..340bc4f72f34 100644
--- a/tools/testing/radix-tree/tag_check.c
+++ b/tools/testing/radix-tree/tag_check.c
@@ -331,29 +331,27 @@ static void single_check(void)
item_kill_tree(&tree);
}
-void radix_tree_clear_tags_test(void)
+void init_tags_test(void)
{
+ DEFINE_XARRAY(tree);
+ XA_STATE(xas, &tree, 0);
unsigned long index;
- struct radix_tree_node *node;
- struct radix_tree_iter iter;
- void **slot;
+ void *entry;
- RADIX_TREE(tree, GFP_KERNEL);
-
- item_insert(&tree, 0);
- item_tag_set(&tree, 0, 0);
- __radix_tree_lookup(&tree, 0, &node, &slot);
- radix_tree_clear_tags(&tree, node, slot);
- assert(item_tag_get(&tree, 0, 0) == 0);
+ xa_store(&tree, 0, xa_mk_value(0), GFP_KERNEL);
+ item_tag_set(&tree, 0, XA_TAG_0);
+ xas_load(&xas);
+ xas_init_tags(&xas);
+ assert(item_tag_get(&tree, 0, XA_TAG_0) == 0);
for (index = 0; index < 1000; index++) {
- item_insert(&tree, index);
- item_tag_set(&tree, index, 0);
+ xa_store(&tree, index, xa_mk_value(index), GFP_KERNEL);
+ item_tag_set(&tree, index, XA_TAG_0);
}
- radix_tree_for_each_slot(slot, &tree, &iter, 0) {
- radix_tree_clear_tags(&tree, iter.node, slot);
- assert(item_tag_get(&tree, iter.index, 0) == 0);
+ xas_for_each(&xas, entry, ULONG_MAX) {
+ xas_init_tags(&xas);
+ assert(item_tag_get(&tree, xas.xa_index, XA_TAG_0) == 0);
}
item_kill_tree(&tree);
@@ -376,5 +374,5 @@ void tag_check(void)
thrash_tags();
rcu_barrier();
printv(2, "after thrash_tags: %d allocated\n", nr_allocated);
- radix_tree_clear_tags_test();
+ init_tags_test();
}
--
2.17.1
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