linux-kernel - Re: [RFC] [PATCH] Pre-emption control for userspace

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Message-ID: <20140305145420.GA30173@redhat.com>
Date:	Wed, 5 Mar 2014 15:54:20 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Khalid Aziz <khalid.aziz@...cle.com>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
	peterz@...radead.org, akpm@...ux-foundation.org,
	viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org
Subject: Re: [RFC] [PATCH] Pre-emption control for userspace

On 03/04, Andi Kleen wrote:
>
> Anything else?

Well, we have yield_to(). Perhaps sys_yield_to(lock_owner) can help.
Or perhaps sys_futex() can do this if it knows the owner. Don't ask
me what exactly I mean though ;)

Oleg.

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