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Re: Using __kuser_cmpxchg

From: Nicolas Pitre <nico at cam dot org>
To: David Daney <ddaney at avtrex dot com>
Cc: Andrew Haley <aph at redhat dot com>, Paul Brook <paul at codesourcery dot com>, java at gcc dot gnu dot org, linux-arm-kernel at lists dot arm dot linux dot org dot uk
Date: Thu, 15 Nov 2007 14:32:19 -0500 (EST)
Subject: Re: Using __kuser_cmpxchg
References: <200711151759.lAFHxKa4027497@devserv.devel.redhat.com> <alpine.LFD.0.9999.0711151326510.21255@xanadu.home> <18236.39235.500965.810488@zebedee.pink> <473C9A6B.9080406@avtrex.com>

On Thu, 15 Nov 2007, David Daney wrote:

> Am I missing something here?
> 
> Is it really impossible to implement compare_and_swap on these ARM platforms?

Depends how crappy you want its performance to be.


Nicolas

References:
- Re: Using __kuser_cmpxchg
  - From: Nicolas Pitre
- Re: Using __kuser_cmpxchg
  - From: Andrew Haley
- Re: Using __kuser_cmpxchg
  - From: David Daney

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