On Wed, Feb 27, 2019 at 09:17:42AM -0800, Linus Torvalds wrote: > It all seems pretty ad-hoc, and we already _know_ that "asm volatile" is bad.
Ah, all I wanted was the ONCE thing and my inline asm foo sucks. If +m gets us that, awesome. But the ONCE thing defeats CSE (on purpose!) so for code-gen that likes/wants that we then have to use the __this_cpu crud.