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

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Message-ID: <46A746BF.4060301@qumranet.com>
Date:	Wed, 25 Jul 2007 15:49:03 +0300
From:	Avi Kivity <avi@...ranet.com>
To:	kvm-devel@...ts.sourceforge.net
CC:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	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

Avi Kivity wrote:
>  /**
>   * prepare_task_switch - prepare to switch tasks
>   * @rq: the runqueue preparing to switch
> @@ -1687,6 +1746,7 @@ void fastcall wake_up_new_task(struct task_struct *p, unsigned long clone_flags)
>   */
>  static inline void prepare_task_switch(struct rq *rq, struct task_struct *next)
>  {
> +	fire_sched_out_preempt_hooks(current);
>   

This wants an extra arg, 'next', of course.

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

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