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-rw-r--r--lib/maple_tree.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 6f241bb387..d70db05757 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -5061,18 +5061,18 @@ int mas_empty_area_rev(struct ma_state *mas, unsigned long min,
if (size == 0 || max - min < size - 1)
return -EINVAL;
- if (mas_is_start(mas)) {
+ if (mas_is_start(mas))
mas_start(mas);
- mas->offset = mas_data_end(mas);
- } else if (mas->offset >= 2) {
- mas->offset -= 2;
- } else if (!mas_rewind_node(mas)) {
+ else if ((mas->offset < 2) && (!mas_rewind_node(mas)))
return -EBUSY;
- }
- /* Empty set. */
- if (mas_is_none(mas) || mas_is_ptr(mas))
+ if (unlikely(mas_is_none(mas) || mas_is_ptr(mas)))
return mas_sparse_area(mas, min, max, size, false);
+ else if (mas->offset >= 2)
+ mas->offset -= 2;
+ else
+ mas->offset = mas_data_end(mas);
+
/* The start of the window can only be within these values. */
mas->index = min;