On Fri, Jul 31, 2015 at 03:18:02PM +0200, Peter Zijlstra wrote:
> Using these functions with preemption enabled is racy against MTRR
> updates. And if that race is ok, at the very least explain that it is
> indeed racy and why this is not a problem.
Right, so Luis has been working on burying direct MTRR access so
after that work is done, we'll be using only PAT for changing memory
attributes. Look at arch_phys_wc_add() and all those fbdev users of
mtrr_add() which get converted to that thing...
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
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