linux-kernel - Re: [PATCH v2 2/3] mutex: add support for reservation style locks, v2

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Date:	Tue, 02 Apr 2013 12:56:14 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Maarten Lankhorst <maarten.lankhorst@...onical.com>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	daniel.vetter@...ll.ch, x86@...nel.org,
	dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org,
	robclark@...il.com, tglx@...utronix.de, mingo@...e.hu,
	linux-media@...r.kernel.org
Subject: Re: [PATCH v2 2/3] mutex: add support for reservation style locks,
 v2

On Thu, 2013-02-28 at 11:25 +0100, Maarten Lankhorst wrote:
> +mutex_reserve_lock_slow and mutex_reserve_lock_intr_slow:
> +  Similar to mutex_reserve_lock, except it won't backoff with
> -EAGAIN.
> +  This is useful when mutex_reserve_lock failed with -EAGAIN, and you
> +  unreserved all reservation_locks so no deadlock can occur.
> +

I don't particularly like these function names, with lock
implementations the _slow post-fix is typically used for slow path
implementations, not API type interfaces.



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