Regionlist overhaul: Refactor regionlist init

src/fellow_regionlist.h

@@ -132,18 +132,13 @@ regl_cram(const uint8_t bits, int8_t cram)
 }
 
 static struct regl *
-regl_alloc_bits(buddy_t *membuddy, const uint8_t bits, int8_t cram,
+regl_init(buddy_t *membuddy, struct buddy_ptr_page alloc,
     struct regionlist **rlp)
 {
-	struct buddy_ptr_page alloc;
 	struct regionlist *rl;
 	struct regl *r;
 	size_t sz, b;
 
-	alloc = buddy_alloc1_ptr_page_wait(membuddy, FEP_MEM_FREE, bits,
-	    regl_cram(bits, cram));
-	AN(alloc.ptr);
-
 	sz = (size_t)1 << alloc.bits;
 	assert(sz >= (sizeof *r + sizeof *rl));
 
@@ -173,6 +168,19 @@ regl_alloc_bits(buddy_t *membuddy, const uint8_t bits, int8_t cram,
 	return (r);
 }
 
+static struct regl *
+regl_alloc_bits(buddy_t *membuddy, const uint8_t bits, int8_t cram,
+    struct regionlist **rlp)
+{
+	struct buddy_ptr_page alloc;
+
+	alloc = buddy_alloc1_ptr_page_wait(membuddy, FEP_MEM_FREE, bits,
+	    regl_cram(bits, cram));
+	AN(alloc.ptr);
+
+	return (regl_init(membuddy, alloc, rlp));
+}
+
 #ifdef DEBUG
 static const int8_t regl_bits = 12;
 #else