From: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Subject: radix-tree: remove restriction on multi-order entries
Now that sibling pointers are handled explicitly, there is no purpose
served by restricting the order to be >= RADIX_TREE_MAP_SHIFT.
Signed-off-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Reviewed-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Cc: Konstantin Khlebnikov <koct9i@xxxxxxxxx>
Cc: Kirill Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxxx>
Cc: Neil Brown <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/radix-tree.c | 2 --
1 file changed, 2 deletions(-)
diff -puN lib/radix-tree.c~radix-tree-remove-restriction-on-multi-order-entries lib/radix-tree.c
--- a/lib/radix-tree.c~radix-tree-remove-restriction-on-multi-order-entries
+++ a/lib/radix-tree.c
@@ -483,8 +483,6 @@ int __radix_tree_create(struct radix_tre
unsigned int height, shift, offset;
int error;
- BUG_ON((0 < order) && (order < RADIX_TREE_MAP_SHIFT));
-
/* Make sure the tree is high enough. */
if (index > radix_tree_maxindex(root->height)) {
error = radix_tree_extend(root, index, order);
_
--
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