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-rw-r--r--lib/radix-tree.c49
1 files changed, 26 insertions, 23 deletions
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 368052ac468a..dbf4e8c8e100 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -214,15 +214,29 @@ radix_tree_find_next_bit(struct radix_tree_node *node, unsigned int tag,
return RADIX_TREE_MAP_SIZE;
}
+/*
+ * The maximum index which can be stored in a radix tree
+ */
+static inline unsigned long shift_maxindex(unsigned int shift)
+{
+ return (RADIX_TREE_MAP_SIZE << shift) - 1;
+}
+
+static inline unsigned long node_maxindex(struct radix_tree_node *node)
+{
+ return shift_maxindex(node->shift);
+}
+
#ifndef __KERNEL__
static void dump_node(struct radix_tree_node *node, unsigned long index)
{
unsigned long i;
- pr_debug("radix node: %p offset %d tags %lx %lx %lx shift %d count %d exceptional %d parent %p\n",
- node, node->offset,
+ pr_debug("radix node: %p offset %d indices %lu-%lu parent %p tags %lx %lx %lx shift %d count %d exceptional %d\n",
+ node, node->offset, index, index | node_maxindex(node),
+ node->parent,
node->tags[0][0], node->tags[1][0], node->tags[2][0],
- node->shift, node->count, node->exceptional, node->parent);
+ node->shift, node->count, node->exceptional);
for (i = 0; i < RADIX_TREE_MAP_SIZE; i++) {
unsigned long first = index | (i << node->shift);
@@ -230,14 +244,16 @@ static void dump_node(struct radix_tree_node *node, unsigned long index)
void *entry = node->slots[i];
if (!entry)
continue;
- if (is_sibling_entry(node, entry)) {
- pr_debug("radix sblng %p offset %ld val %p indices %ld-%ld\n",
- entry, i,
- *(void **)entry_to_node(entry),
- first, last);
+ if (entry == RADIX_TREE_RETRY) {
+ pr_debug("radix retry offset %ld indices %lu-%lu parent %p\n",
+ i, first, last, node);
} else if (!radix_tree_is_internal_node(entry)) {
- pr_debug("radix entry %p offset %ld indices %ld-%ld\n",
- entry, i, first, last);
+ pr_debug("radix entry %p offset %ld indices %lu-%lu parent %p\n",
+ entry, i, first, last, node);
+ } else if (is_sibling_entry(node, entry)) {
+ pr_debug("radix sblng %p offset %ld indices %lu-%lu parent %p val %p\n",
+ entry, i, first, last, node,
+ *(void **)entry_to_node(entry));
} else {
dump_node(entry_to_node(entry), first);
}
@@ -455,19 +471,6 @@ int radix_tree_maybe_preload_order(gfp_t gfp_mask, int order)
return __radix_tree_preload(gfp_mask, nr_nodes);
}
-/*
- * The maximum index which can be stored in a radix tree
- */
-static inline unsigned long shift_maxindex(unsigned int shift)
-{
- return (RADIX_TREE_MAP_SIZE << shift) - 1;
-}
-
-static inline unsigned long node_maxindex(struct radix_tree_node *node)
-{
- return shift_maxindex(node->shift);
-}
-
static unsigned radix_tree_load_root(struct radix_tree_root *root,
struct radix_tree_node **nodep, unsigned long *maxindex)
{