linux-kernel - Re: [PATCH 1/3] SCHED: Generic hooks for trapping task preemption

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Message-ID: <46A74C93.7080705@qumranet.com>
Date:	Wed, 25 Jul 2007 16:13:55 +0300
From:	Avi Kivity <avi@...ranet.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	kvm-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	shaohua.li@...el.com, rusty@...tcorp.com.au,
	Andi Kleen <ak@...e.de>
Subject: Re: [PATCH 1/3] SCHED: Generic hooks for trapping task preemption

Ingo Molnar wrote:
> * Ingo Molnar <mingo@...e.hu> wrote:
>
>   
>>> This adds a general mechanism whereby a task can request the 
>>> scheduler to notify it whenever it is preempted or scheduled back 
>>> in.  This allows the task to swap any special-purpose registers like 
>>> the fpu or Intel's VT registers.
>>>       
>> ok, this looks very clean, i've added it to my scheduler tree. You've 
>> tested this with KVM, on both 32-bit and 64-bit, correct?
>>     
>
> note: i've done a hook -> notifier rename - 'hook' is way too generic 
> sounding and also slightly loaded. (updated patch below)
>
>   

Okay, both i386 and x86_64 are happy (with the missing 'next' argument
added, but with the old hook name).

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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