Method add_freergn

src/allocator/lnls.rs:60–72

Add specified memreg to front of the list:

(&mut self, addr: usize, size: usize)

	// Add specified memreg to front of the list:
	unsafe fn add_freergn(&mut self, addr: usize, size: usize)
	{
			// Verify that freed region is able to hold ListNode:
			assert_eq!(alignup(addr, mem::align_of::<ListNode>()), addr);
			assert!(size >= mem::size_of::<ListNode>());

			// Create new list-node, append to start of list:
			let mut node = ListNode::new(size);
			node.next = self.head.next.take();
			let node_ptr = addr as *mut ListNode;
			node_ptr.write(node);
			self.head.next = Some(&mut *node_ptr)
	}

	// Locate a free region, matching the specified size and alignment, and removes said region from list:
	// NOTE: This will return a tuple, containing the list-node, and the start address of the allocation.