From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH RESEND v3 3/7] Intel MIC Host Driver, card OS state
	management.
Date: Thu, 5 Sep 2013 22:00:37 -0700
Message-ID: <20130906050037.GE28806@kroah.com>
References: <cover.1378423596.git.sudeep.dutt@intel.com>
	<669a3a3bbfff577c73d05fb568a810cbbc3d5333.1378423596.git.sudeep.dutt@intel.com>
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To: Sudeep Dutt <sudeep.dutt@intel.com>
Cc: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>, "Yaozu (Eddie) Dong" <eddie.dong@intel.com>, Arnd Bergmann <arnd@arndb.de>, "Michael S. Tsirkin" <mst@redhat.com>, Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Ashutosh Dixit <ashutosh.dixit@intel.com>, Rob Landley <rob@landley.net>, Caz Yokoyama <Caz.Yokoyama@intel.com>, Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
List-Id: virtualization@lists.linuxfoundation.org

On Thu, Sep 05, 2013 at 04:41:55PM -0700, Sudeep Dutt wrote:
> +What:		/sys/class/mic/mic(x)/cmdline
> +Date:		August 2013
> +KernelVersion:	3.11
> +Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
> +Description:
> +		An Intel MIC device runs a Linux OS during its operation. Before
> +		booting this card OS, it is possible to pass kernel command line
> +		options to configure various features in it, similar to
> +		self-bootable machines. When read, this entry provides
> +		information about the current kernel command line options set to
> +		boot the card OS. This entry can be written to change the
> +		existing kernel command line options. Typically, the user would
> +		want to read the current command line options, append new ones
> +		or modify existing ones and then write the whole kernel command
> +		line back to this entry.

Is a PAGE_SIZE value going to be big enough for your command line?  I
know some embedded systems have horribly long command lines, hopefully
this will be enough for you.

thanks,

greg k-h