Re: [PATCH v2 1/2] x86/msr: Carry on after a non-"safe" MSR access fails without !panic_on_oops

From: H. Peter Anvin
Date: Wed Sep 30 2015 - 14:33:23 EST


On 09/21/2015 09:36 AM, Linus Torvalds wrote:
>
> How many msr reads are <i>so</i> critical that the function call
> overhead would matter? Get rid of the inline version of the _safe()
> thing too, and put that thing there too.
>

Probably only the ones that may go in the context switch path.

-hpa


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