From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: [RFC][PATCH] Basic support for page offline Date: Tue, 10 Feb 2009 10:29:04 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Jiang, Yunhong" , Tim Deegan Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org On 10/02/2009 09:29, "Jiang, Yunhong" wrote: >> - It seems like a lot of code for what it does. On the Xen >> side that's >> just a general impression since I'm not familiar with the >> bits of the > > For Xen part, the reason is because the currently heap allocator is based on > buddy system, while the offlined page may be in the middle of the buddy, so we > have to split the original buddy into several smaller one. > And do you mean I need turn to Keir for the heap allocator changes? I will look at them, yes. It's probably more my area than Tim's. -- Keir