Re: [PATCH] x86: Create clflush() inline, remove hardcoded wbinvd

From: H. Peter Anvin
Date: Fri Jul 20 2007 - 17:34:14 EST


Andi Kleen wrote:
> On Fri, Jul 20, 2007 at 02:19:58PM -0700, H. Peter Anvin wrote:
>> Create an inline function for clflush(), with the proper arguments,
>> and use it instead of hard-coding the instruction.
>>
>> This also removes one instance of hard-coded wbinvd, based on a patch
>> by Bauder de Oliveira Costa.
>
> I don't see much sense in it. CLFLUSH is not priviledged, paravirt
> doesn't need to change and this adds just an unnecessary layer of abstraction.

The main reason is that everyone seems to invoke it either incorrectly
or suboptimally.

-hpa
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/