linux-kernel - Re: [PATCH v3] mmc: add config and runtime option for number of mmcblk minors

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Message-ID: <20100908145705.GC23745@lixom.net>
Date:	Wed, 8 Sep 2010 09:57:05 -0500
From:	Olof Johansson <olof@...om.net>
To:	Lei Wen <adrian.wenl@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Mandeep Baines <msb@...omium.org>
Subject: Re: [PATCH v3] mmc: add config and runtime option for number of
	mmcblk minors

Hi,

On Wed, Sep 08, 2010 at 10:25:58PM +0800, Lei Wen wrote:

> The patch's purpose is good. As modern sd&mmc is used to host the file
> system, the 8 partition limitation is becoming a kind of bottleneck...
> But why not just add GENHD_FL_EXT_DEVT flag to allow mmc use extended
> partition numbers?

No need to quote the whole patch next time. :)

Given that MMC is sometimes used in deeply embedded environments where
udev might not be running to take care of dynamic device numbering,
I chose to stay with a static layout.

I could be convinced otherwise though. It would cause some additional
hassles for me since we start udev lateish during boot and have a
prepopulated /dev before that, but that can be dealt with.

-Olof

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