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>
diff --git a/lib/idr.c b/lib/idr.c
index 88419fb..9a366b5 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -39,8 +39,8 @@ int idr_alloc_u32(struct idr *idr, void *ptr, u32 *nextid,
unsigned int base = idr->idr_base;
unsigned int id = *nextid;
- if (WARN_ON_ONCE(!(idr->idr_rt.gfp_mask & ROOT_IS_IDR)))
- idr->idr_rt.gfp_mask |= IDR_RT_MARKER;
+ if (WARN_ON_ONCE(!(idr->idr_rt.xa_flags & ROOT_IS_IDR)))
+ idr->idr_rt.xa_flags |= IDR_RT_MARKER;
id = (id < base) ? 0 : id - base;
radix_tree_iter_init(&iter, id);