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Date: Thu, 13 May 2004 16:39:48 +0400
From: Oleg Nesterov <oleg@tv-sign.ru>
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CC: Nick Piggin <nickpiggin@yahoo.com.au>, Andrew Morton <akpm@osdl.org>
Subject: Re: 2.6.6-mm2
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Hello.

Andrew Morton wrote:
>
> +yield_irq.patch
>
> From: Nick Piggin
>
> this_rq_lock does a local_irq_disable, and sched_yield()
> needs to undo that.

I beleive it is safe to enter schedule() with interrupts
disabled. schedule() does spin_lock_irq()->local_irq_disable()
anyway.

Could you please explain, why it is needed?

Oleg.