Re: [PATCH] mm: fix up a spurious page fault whenever it happens

From: Steven Rostedt
Date: Thu May 23 2013 - 09:29:39 EST

On Thu, 2013-05-23 at 08:19 -0400, Rik van Riel wrote:

> We can add a bit in the architecture bits that
> we use to check against other CPU and system
> errata, and conditionally flush the whole TLB
> from __native_flush_tlb_single().

If we find that some CPUs have issues and others do not, and we can
determine this by checking the CPU type at run time, I would strongly
suggest using the jump_label infrastructure to do the branches. I know
this is early to suggest something like this, but I just wanted to put
it in your head ;-)

-- Steve

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