Re: [PATCH 1/1] x86: fix text_poke

[Pavel Machek]

On Fri 2008-04-25 08:57:20, H. Peter Anvin wrote:
> Ingo Molnar wrote:
>>
>> text_poke() itself only applies/unapplies the LOCK prefix - a single byte. 
>> We shouldnt be doing that at all: the cost of LOCK is insignificant (a few 
>> cycles) and most systems are SMP anyway.
>>
>
> Alas, on older CPUs the cost of LOCK can be massive.  The question is how 
> much we really care - the embedded people (who would definitely be 
> affected) will simply build UP kernels, and this only affects booting SMP 
> kernels on UP.

Like... say distros on older hardware?
									Pavel
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