linux-kernel - Re: [PATCH] init: fix name of root device in /proc/mounts

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Message-ID: <20130201171453.GA1630@linux1>
Date:	Fri, 1 Feb 2013 11:14:53 -0600
From:	William Hubbs <w.d.hubbs@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	linux-kernel@...r.kernel.org, mpagano@...too.org
Subject: Re: [PATCH] init: fix name of root device in /proc/mounts

On Thu, Jan 31, 2013 at 03:22:09PM -0800, H. Peter Anvin wrote:
> On 01/31/2013 02:51 PM, William Hubbs wrote:
> > On a system that does not use an initramfs, /dev/root was always
> > listed in /proc/mounts. This breaks software which scans /proc/mounts to
> > determine which file systems are mounted since /dev/root is not a valid
> > device name.
> > 
> > This changes that processing so that "/dev/root" is only added to
> > /proc/mounts if a root device is not specified with the root= option on
> > the kernel command line.
> > 
> > Signed-off-by: William Hubbs <w.d.hubbs@...il.com>
> 
> Let me also point out that most of the time, the kernel actually has a
> udev device name for an actual device...

I'm not sure what you mean. If you mean /dev/root is not an actual
device and should not be listed in /proc/mounts, that is correct and
that is why I am proposing this patch.

William

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