btrfs-progs: kernel-lib: remove radix-tree

The radix-tree is not used in userspace code. In kernel it's for
tracking unpersisted and in-memory structures and has been replaced by
the xarray.

Signed-off-by: David Sterba <dsterba@suse.com>

Author: kdave

Makefile

@@ -147,7 +147,6 @@ CHECKER_FLAGS := -include $(check_defs) -D__CHECKER__ \
 
 objects = \
 	kernel-lib/list_sort.o	\
-	kernel-lib/radix-tree.o	\
 	kernel-lib/raid56.o	\
 	kernel-lib/rbtree.o	\
 	kernel-lib/tables.o	\

btrfs-corrupt-block.c

@@ -23,7 +23,6 @@
 #include <limits.h>
 #include <errno.h>
 #include <string.h>
-#include "kernel-lib/radix-tree.h"
 #include "kernel-shared/ctree.h"
 #include "kernel-shared/volumes.h"
 #include "kernel-shared/disk-io.h"
@@ -1430,7 +1429,6 @@ int main(int argc, char **argv)
 		return 1;
 	dev = argv[optind];
 
-	radix_tree_init();
 	cache_tree_init(&root_cache);
 
 	root = open_ctree(dev, 0, OPEN_CTREE_WRITES);

btrfs-map-logical.c

@@ -25,7 +25,6 @@
 #include <errno.h>
 #include <string.h>
 #include "kernel-lib/sizes.h"
-#include "kernel-lib/radix-tree.h"
 #include "kernel-shared/ctree.h"
 #include "kernel-shared/extent_io.h"
 #include "kernel-shared/volumes.h"
@@ -264,7 +263,6 @@ int main(int argc, char **argv)
 
 	dev = argv[optind];
 
-	radix_tree_init();
 	cache_tree_init(&root_cache);
 
 	root = open_ctree(dev, 0, 0);

btrfs-select-super.c

@@ -21,7 +21,6 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <getopt.h>
-#include "kernel-lib/radix-tree.h"
 #include "kernel-shared/ctree.h"
 #include "kernel-shared/volumes.h"
 #include "kernel-shared/disk-io.h"
@@ -73,8 +72,6 @@ int main(int argc, char **argv)
 		print_usage();
 	}
 
-	radix_tree_init();
-
 	if((ret = check_mounted(argv[optind])) < 0) {
 		errno = -ret;
 		error("cannot check mount status: %m");

check/main.c

@@ -28,7 +28,6 @@
 #include <string.h>
 #include <time.h>
 #include <uuid/uuid.h>
-#include "kernel-lib/radix-tree.h"
 #include "kernel-lib/list.h"
 #include "kernel-lib/rbtree.h"
 #include "kernel-lib/rbtree_types.h"
@@ -10690,7 +10689,6 @@ static int cmd_check(const struct cmd_struct *cmd, int argc, char **argv)
 
 	printf("Opening filesystem to check...\n");
 
-	radix_tree_init();
 	cache_tree_init(&root_cache);
 	qgroup_set_item_count_ptr(&ctx.item_count);