On Wed, Jun 02, 2010 at 07:05:31AM -0700, David Miller wrote:

From: Wu Fengguang <redacted>
Date: Mon, 31 May 2010 11:19:53 +0800

quoted

Normally dhclient can be configured to send the "host-name" option
in DHCP requests to update the client's DNS record. However for an
NFSROOT system, dhclient shall never be called (which may change the
IP addr and therefore lose your root NFS mount connection).

So enable updating the DNS record with kernel parameter

	ip=::::$HOST_NAME::dhcp

Signed-off-by: Wu Fengguang <redacted>

Applied, thanks.

Small nit: Fengguang, please document the new option in 
Documentation/kernel-parameters.txt That could be done in a follow-on patch.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.