XNU open source bits from Apple are always a tiny subset of the actual kernel code. Plus, long gone are the people who Apple hired from the FreeBSD world who believed in it enough to push internally for it. So who knows at this point what is filtered out at publish time.
Don't get me wrong, it's great to read how file drivers really work, and read how XNU manages virtual memory, but other than that, it's a pretty crappy drop.
Don't get me wrong, it's great to read how file drivers really work, and read how XNU manages virtual memory, but other than that, it's a pretty crappy drop.