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

From: Avi Kivity
Date: Wed Jul 25 2007 - 09:14:23 EST


Ingo Molnar wrote:
> * Ingo Molnar <mingo@xxxxxxx> 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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