Add a cramlimit function on page sizes

src/buddy.c

@@ -199,13 +199,12 @@ npages(size_t size, unsigned bits)
  * not be smaller than 1<<bits
  */
 int8_t
-BUDDYF(cramlimit_extent_minbits)(size_t sz, int8_t cram, int8_t bits)
+BUDDYF(cramlimit_page_minbits)(int8_t up, int8_t cram, int8_t bits)
 {
-	int8_t up;
 
 	if (cram == 0)
 		return (cram);
-	up = (int8_t)(uint8_t)log2up(sz);
+
 	assert(up >= bits);
 	up -= bits;
 	if (abs(cram) <= up)
@@ -213,6 +212,17 @@ BUDDYF(cramlimit_extent_minbits)(size_t sz, int8_t cram, int8_t bits)
 	return (cram < 0 ? 0 - up : up);
 }
 
+int8_t
+BUDDYF(cramlimit_extent_minbits)(size_t sz, int8_t cram, int8_t bits)
+{
+
+	if (cram == 0)
+		return (cram);
+
+	return (BUDDYF(cramlimit_page_minbits)(
+		(int8_t)(uint8_t)log2up(sz), cram, bits));
+}
+
 
 /************************************************************
  * init free map

src/buddy.h

@@ -88,6 +88,7 @@ typedef struct BUDDY buddy_t;
  */
 void * BUDDYF(mmap)(size_t *, void *);
 void BUDDYF(unmap)(void **, size_t, void **);
+int8_t BUDDYF(cramlimit_page_minbits)(int8_t, int8_t, int8_t);
 int8_t BUDDYF(cramlimit_extent_minbits)(size_t, int8_t, int8_t);
 static inline int
 abslimit(int val, int lim)