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Date:	Thu, 06 Mar 2014 14:45:00 +0100
From:	Rasmus Villemoes <>
To:	Peter Zijlstra <>
Cc:	"H. Peter Anvin" <>,
	Khalid Aziz <>,,
	Ingo Molnar <>,,,,,,,
Subject: Re: [RFC] [PATCH] Pre-emption control for userspace

Peter Zijlstra <> writes:

> On Thu, Mar 06, 2014 at 02:24:43PM +0100, Rasmus Villemoes wrote:
>> Is it possible to implement non-sleeping versions of {get,put}_user()?
> __{get,put}_user()



 * __get_user: - Get a simple variable from user space, with less checking.
 * @x:   Variable to store result.
 * @ptr: Source address, in user space.
 * Context: User context only.  This function may sleep.

What am I missing?


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