From: Dan Williams <dan.j.williams@intel.com>
To: linux-sh@vger.kernel.org
Subject: Re: [PATCH 3/3 v2] sh: implement DMA_SLAVE capability in SH dmaengine
Date: Wed, 03 Feb 2010 00:34:15 +0000 [thread overview]
Message-ID: <4B68C487.7010704@intel.com> (raw)
In-Reply-To: <Pine.LNX.4.64.1001190825120.4607@axis700.grange>
Guennadi Liakhovetski wrote:
> Tested to work with a SIU ASoC driver on sh7722 (migor).
>
> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
> ---
[..]
> + /*
> + * Called under dma_list_mutex, take care to perform all slave channel
> + * ID manipulations under that lock.
> + */
Not that I think we will ever see scalability patches aimed at breaking
up the "big dma_list_mutex lock", but it makes me a bit uneasy that this
relies on an internal implementation detail of dmaengine. Please add a
private lock here.
Thanks,
Dan
next prev parent reply other threads:[~2010-02-03 0:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-19 7:27 [PATCH 3/3 v2] sh: implement DMA_SLAVE capability in SH dmaengine Guennadi Liakhovetski
2010-02-01 19:05 ` Guennadi Liakhovetski
2010-02-03 0:34 ` Dan Williams [this message]
2010-02-03 0:36 ` Dan Williams
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