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-rw-r--r--lib/xarray.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/xarray.c b/lib/xarray.c
index 7946380cd6c9..bbacca576593 100644
--- a/lib/xarray.c
+++ b/lib/xarray.c
@@ -1565,8 +1565,9 @@ void *xa_store_range(struct xarray *xa, unsigned long first,
do {
xas_lock(&xas);
if (entry) {
- unsigned int order = (last == ~0UL) ? 64 :
- ilog2(last + 1);
+ unsigned int order = BITS_PER_LONG;
+ if (last + 1)
+ order = __ffs(last + 1);
xas_set_order(&xas, last, order);
xas_create(&xas);
if (xas_error(&xas))