xarray: Add definition of struct xarray

This is a direct replacement for struct radix_tree_root.  Some of the
struct members have changed name; convert those, and use a #define so
that radix_tree users continue to work without change.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Josef Bacik <jbacik@fb.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/Makefile b/lib/Makefile
index ca3f7ebb900d..057385f1f145 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -18,7 +18,7 @@ KCOV_INSTRUMENT_debugobjects.o := n
 KCOV_INSTRUMENT_dynamic_debug.o := n
 
 lib-y := ctype.o string.o vsprintf.o cmdline.o \
-         rbtree.o radix-tree.o timerqueue.o\
+         rbtree.o radix-tree.o timerqueue.o xarray.o \
          idr.o int_sqrt.o extable.o \
          sha1.o chacha20.o irq_regs.o argv_split.o \
          flex_proportions.o ratelimit.o show_mem.o \