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Re: [Xen-devel] [PATCH v1 1/9] mm: Separate free page chunk merging into its own routine

To: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
From: Wei Liu <wei.liu2@xxxxxxxxxx>
Date: Tue, 28 Mar 2017 20:20:27 +0100
Cc: tim@xxxxxxx, sstabellini@xxxxxxxxxx, wei.liu2@xxxxxxxxxx, George.Dunlap@xxxxxxxxxxxxx, andrew.cooper3@xxxxxxxxxx, ian.jackson@xxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxx, jbeulich@xxxxxxxx
Delivery-date: Tue, 28 Mar 2017 19:20:42 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Fri, Mar 24, 2017 at 01:04:56PM -0400, Boris Ostrovsky wrote:
> This is needed for subsequent changes to memory scrubbing. No
> logic change, only code re-factoring.

Actually there is a slight change in logic: pg and order could be
updated in the original merge code. With this patch you still pass the
original pg to reserve_offlined_page if tainted is true. I don't think
this matters in terms of correctness, but it is worth pointing out.

Wei.

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Follow-Ups:
- Re: [Xen-devel] [PATCH v1 1/9] mm: Separate free page chunk merging into its own routine
  - From: Boris Ostrovsky

References:
- [Xen-devel] [PATCH v1 0/9] Memory scrubbing from idle loop
  - From: Boris Ostrovsky
- [Xen-devel] [PATCH v1 1/9] mm: Separate free page chunk merging into its own routine
  - From: Boris Ostrovsky

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