Index: kernel/generic/include/adt/bitmap.h
===================================================================
--- kernel/generic/include/adt/bitmap.h	(revision 82cbf8c6161e2ff15d39a43b59096447a98acc21)
+++ kernel/generic/include/adt/bitmap.h	(revision d0c2bebfdc87b9df8cb7c858eed6cead8e2db0b3)
@@ -37,4 +37,5 @@
 
 #include <stddef.h>
+#include <stdbool.h>
 
 #define BITMAP_ELEMENT   8
@@ -81,5 +82,5 @@
 extern void bitmap_clear_range(bitmap_t *, size_t, size_t);
 
-extern int bitmap_allocate_range(bitmap_t *, size_t, size_t, size_t, size_t,
+extern bool bitmap_allocate_range(bitmap_t *, size_t, size_t, size_t, size_t,
     size_t *);
 extern void bitmap_copy(bitmap_t *, bitmap_t *, size_t);