[PATCH v2 07/15] lib min_heap: Add min_heap_full()

[Kuan-Wei Chiu]

Add min_heap_full() which returns a boolean value indicating whether
the heap has reached its maximum capacity.

Signed-off-by: Kuan-Wei Chiu <visitorckw@xxxxxxxxx>
Reviewed-by: Ian Rogers <irogers@xxxxxxxxxx>
---
 include/linux/min_heap.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/linux/min_heap.h b/include/linux/min_heap.h
index 7c1fd1ddc71a..b1d874f4d536 100644
--- a/include/linux/min_heap.h
+++ b/include/linux/min_heap.h
@@ -66,6 +66,16 @@ void *__min_heap_peek(struct __min_heap *heap)
 #define min_heap_peek(_heap)	\
 	(__minheap_cast(_heap) __min_heap_peek(&(_heap)->heap))
 
+/* Check if the heap is full. */
+static __always_inline
+bool __min_heap_full(struct __min_heap *heap)
+{
+	return heap->nr == heap->size;
+}
+
+#define min_heap_full(_heap)	\
+	__min_heap_full(&(_heap)->heap)
+
 /* Sift the element at pos down the heap. */
 static __always_inline
 void __min_heapify(struct __min_heap *heap, int pos, size_t elem_size,
-- 
2.34.1