I have one for $7.68 ($2.56*3). Alas, it was for some minor typos and grammatical errors in SPOCS [1], not "real" math errors in TAOCP. Never plan on cashing it in though. And I can't remember where I stashed it, so there's that too... :)
As the article states, BQL has been around since 2011 so it's most likely available - you can grep for CONFIG_BQL in your /boot/config-* file to confirm.
I'm not aware of any up-to-date list of drivers that support BQL. You could try something like [1], but I'm not sure if it will find all relevant drivers.
Geez, he did that too? I'm on a concatenative language chat server (you know, Forth, Joy, Factor, Kitten and the like), and someone recently realized one of his earliest papers from 1962 is one of the first to highlight the generality of stack-based languages. Like it's already halfway there towards a proper Forth.
from the abstract of a WIP followup to this article (co-authored by stonebraker and andy pavlo) - "We revisit this issue and argue that little has changed since 2005." [1]