linux-kernel - Re: [PATCH 06/13] locking/qspinlock: merge qspinlock

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Date:   Tue, 5 Jul 2022 19:20:36 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Nicholas Piggin <npiggin@...il.com>
Cc:     Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 06/13] locking/qspinlock: merge qspinlock_paravirt.h into
 qspinlock.c

On Tue, Jul 05, 2022 at 12:38:13AM +1000, Nicholas Piggin wrote:
> There isn't much reason to keep these separate.

The reason was so that other paravirt implementations could be added.

The CNA thing was also implemented this way...