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Date:   Thu, 30 Aug 2018 12:39:04 +0200
From:   Peter Zijlstra <>
To:     Rich Felker <>
Cc:     Thomas Gleixner <>,
Subject: Re: futex_cmpxchg_enabled breakage

On Wed, Aug 29, 2018 at 06:22:21PM -0400, Rich Felker wrote:
> If there are archs that support SMP but don't provide their own

Then throw it out the window and drive over it with a tank.

Seriously, an SMP architecture that doesn't have native cmpxchg (or
equivalent) is not worth anybodies time.

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