linux-kernel - Re: [PATCH v2] printk, locking/atomics, kref: Introduce new %pAr and %pAk format string options for atomic

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Message-ID: <20161115092129.GF3142@twins.programming.kicks-ass.net>
Date:   Tue, 15 Nov 2016 10:21:29 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Greg KH <gregkh@...uxfoundation.org>,
        Christoph Hellwig <hch@...radead.org>, keescook@...omium.org,
        will.deacon@....com, elena.reshetova@...el.com, arnd@...db.de,
        tglx@...utronix.de, hpa@...or.com,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        dave@...gbits.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] printk, locking/atomics, kref: Introduce new %pAr and
 %pAk format string options for atomic_t and 'struct kref'

On Tue, Nov 15, 2016 at 09:43:55AM +0100, Ingo Molnar wrote:
> +atomic variables such atomic_t or struct kref:
> +
> +	%pAr	atomic_t count

Why 'r' for atomic_t ? I was expecting 'a' for atomic_t or something.
That then also leaves 'r' available for refcount_t.

> +	%pAk	struct kref count