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Update radix-tree.md

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DataStructures/radix-tree.md
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@ -43,7 +43,7 @@ Lets talk about what a `radix tree` is. Radix tree is a `compressed trie` where
So in this example, we can see the `trie` with keys, `go` and `cat`. The compressed trie or `radix tree` differs from `trie` in that all intermediates nodes which have only one child are removed. So in this example, we can see the `trie` with keys, `go` and `cat`. The compressed trie or `radix tree` differs from `trie` in that all intermediates nodes which have only one child are removed.
Radix tree in linux kernel is the datastructure which maps values to integer keys. It is represented by the following structures from the file [include/linux/radix-tree.h](https://github.com/torvalds/linux/blob/master/include/linux/radix-tree.h): Radix tree in linux kernel is the data structure which maps values to integer keys. It is represented by the following structures from the file [include/linux/radix-tree.h](https://github.com/torvalds/linux/blob/master/include/linux/radix-tree.h):
```C ```C
struct radix_tree_root { struct radix_tree_root {
@ -105,7 +105,7 @@ Now that we know about radix tree structure, it is time to look on its API.
Linux kernel radix tree API Linux kernel radix tree API
--------------------------------------------------------------------------------- ---------------------------------------------------------------------------------
We start from the datastructure initialization. There are two ways to initialize a new radix tree. The first is to use `RADIX_TREE` macro: We start from the data structure initialization. There are two ways to initialize a new radix tree. The first is to use `RADIX_TREE` macro:
```C ```C
RADIX_TREE(name, gfp_mask); RADIX_TREE(name, gfp_mask);