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SubjectRe: [RFC] [PATCH] Pre-emption control for userspace
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Peter Zijlstra <peterz@infradead.org> 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()

Huh?

arch/x86/include/asm/uaccess.h:

/**
* __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?

Rasmus



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