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Date:   Sat, 2 Oct 2021 10:29:33 -0400
From:   Alan Stern <>
To:     Segher Boessenkool <>
Cc:     "Paul E. McKenney" <>,
        Mathieu Desnoyers <>,, Peter Zijlstra <>,,
        Linus Torvalds <>,,,,,,,,,
Subject: Re: [RFC PATCH] LKMM: Add ctrl_dep() macro for control dependency

On Fri, Oct 01, 2021 at 02:10:08PM -0500, Segher Boessenkool wrote:
> Compilers understand you want exactly what you wrote.  If you write
> something other than what you want, you only will get what you want by
> pure luck.

The problem is that at times you _can't_ write what you want because the
language offers no way to express it.


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