I thought about this one more and came to the conclusion that this is a half
measure, and to do it properly the buffer cache should catch up with the
page cache (per-vnode locking and radixtree). That's a fair bit of effort,
so I'm going to leave this change for now.
I still plan to merge the cha
Despite repeatedly messing around with the hash function over the last few
months, and despite being ~64MB, bufhash often has long chains on my test
system.
And, whatever is done to the hash function it will always throw away the
valuable natural partitioning that's there to begin with, which is t
