On Wed, Oct 21, 2020 at 2:34 PM Russell King - ARM Linux admin <[email protected]> wrote: > > We don't do it because we don't have a separate register to be able > to store the thread_info pointer, and copying that lump between the > SVC and IRQ stack will add massively to IRQ latency, especially for > older machines.
I forwarded my other reply as well, in which I suggested using
CONFIG_THREAD_INFO_IN_TASK, wouldn't that solve the problem?
Arnd
