Re: [Xen-devel] [PATCH 0 of 2] Paging support updates for XCP dom0

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 01.12.11 at 21:51, Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx> wrote:
> This is a cherry pick of two patches that add support for guest paged out
> frames in the XCP 2.6.32 dom0 patch queue.

The better thing would probably be to re-base the tree to current
SLE11 SP1 sources. Not sure who would do that though (and also
not sure what state the tree is in maintenance wise). Ian?

Jan

> First patch propagates the ENOENT returned by the hypervisor in the case
> of a paged out page, all the way up the call chain to the MMAPBATCH_V2
> ioctl. The ioctl is mainly used to harvest those return values and retry.
> 
> The second patch adds retry loops to all backend grant operations (map and
> netback copy), in the case of a paged out frame.
> 
> Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
> Acked-by: Patrick Colp <pjcolp@xxxxxxxxx>
> Acked-by: Andres Lagar-Cavilla <andres@lagarcavilla>
> Ported and submitted by Andres Lagar-Cavilla
> 
>  arch/x86/mm/ioremap-xen.c                  |  12 ++----
>  drivers/xen/blkback/blkback.c              |   6 ++-
>  drivers/xen/blkback/interface.c            |   9 +++-
>  drivers/xen/core/gnttab.c                  |   4 +-
>  drivers/xen/gntdev/gntdev.c                |  49 
> +++++++++++++++++------------
>  drivers/xen/netback/interface.c            |   5 +-
>  drivers/xen/netback/netback.c              |  16 ++++++---
>  drivers/xen/scsiback/interface.c           |  10 +++---
>  drivers/xen/scsiback/scsiback.c            |   4 +-
>  drivers/xen/tpmback/interface.c            |   7 +--
>  drivers/xen/tpmback/tpmback.c              |  20 ++++-------
>  drivers/xen/usbback/interface.c            |  16 ++++----
>  drivers/xen/usbback/usbback.c              |   4 +-
>  drivers/xen/xenbus/xenbus_backend_client.c |  10 +++---
>  include/xen/gnttab.h                       |  37 ++++++++++++++++++++++
>  15 files changed, 130 insertions(+), 79 deletions(-)




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