[RFC PATCH] uprobes: copy to user-space xol page with proper cache flushing

[David Miller]

From: David Miller <davem at davemloft.net>
Date: Tue, 15 Apr 2014 14:30:54 -0400 (EDT)

> Russell, if for example userland stores into the instruction stream
> to patch an instruction, what needs to be done on ARM?

Looking around I suspect something like:

	mcrne	p15, 0, INSN_ADDR, c7, c5, 1

after the instruction stores will do it.