Re: [PATCH] x86: Return to kernel without IRET

[Linus Torvalds]

On Fri, May 2, 2014 at 4:51 PM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote:
> On my box, this saves about 100ns on each interrupt and trap that
> happens while running in kernel space.  This speeds up my kernel_pf
> microbenchmark by about 17%.

Acked-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

Now it just needs lots of testing to make sure it's all good. But I
can't imagine what would go wrong.

               Linus
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