The rest of the 5.2 merge window

I hope pressure stall monitors see some adoption. Conventional wisdom in userspace has always been “autodetect core count” for programs that have parallelism (and things like make -j`nproc`), but that number (multiplied by software bloat) is increasing far faster than memory can keep up. Compared to the care taken to not forkbomb users' machines, policies for using memory responsibly seem non-existent.