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Re: [Xen-devel] [PATCH] xen/xenbus: Don't leak memory when unmapping the ring on HVM backend

To: Julien Grall <julien.grall@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
From: David Vrabel <david.vrabel@xxxxxxxxxx>
Date: Tue, 11 Aug 2015 11:05:00 +0100
Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, David Vrabel <david.vrabel@xxxxxxxxxx>
Delivery-date: Tue, 11 Aug 2015 10:05:12 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 10/08/15 19:10, Julien Grall wrote:
> The commit ccc9d90a9a8b5c4ad7e9708ec41f75ff9e98d61d "xenbus_client:
> Extend interface to support multi-page ring" removes the call to
> free_xenballooned_pages in xenbus_unmap_ring_vfree_hvm.
> 
> This will result to not give back the pages to Linux and loose them
> forever. It only happens when the backends are running in HVM domains.

Applied to for-linus-4.2 and tagged for stable, thanks.

David

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References:
- [Xen-devel] [PATCH] xen/xenbus: Don't leak memory when unmapping the ring on HVM backend
  - From: Julien Grall

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