[GIT PULL] (xen) stable/for-jens-4.2 for rc4

[GIT PULL] (xen) stable/for-jens-4.2 for rc4

[Konrad Rzeszutek Wilk]

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Hey Jens,

There are three bugs that have been found in the xen-blkfront (and
backend). Two of them have the stable tree CC-ed. They have been found
where an guest is migrating to a host that is missing 'feature-persistent'
support (from one that has it enabled). We end up hitting an BUG() in the
driver code.

Please git pull the following branch:

git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/for-jens-4.2

which has the outlined changes. The branch is based on your
'for-4.2/drivers' branch but it also nicely applies to Linus's tree and
your 'for-linus'.

 drivers/block/xen-blkback/blkback.c |   4 +-
 drivers/block/xen-blkfront.c        | 128 ++++++++++++++++++++----------------
 2 files changed, 74 insertions(+), 58 deletions(-)

Bob Liu (3):
      xen-blkfront: introduce blkfront_gather_backend_features()
      xen-blkfront: don't add indirect pages to list when !feature_persistent
      xen-blkback: replace work_pending with work_busy in purge_persistent_gnt()

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Re: [GIT PULL] (xen) stable/for-jens-4.2 for rc4

[Jens Axboe]

On 07/27/2015 11:36 AM, Konrad Rzeszutek Wilk wrote:
> Hey Jens,
>
> There are three bugs that have been found in the xen-blkfront (and
> backend). Two of them have the stable tree CC-ed. They have been found
> where an guest is migrating to a host that is missing 'feature-persistent'
> support (from one that has it enabled). We end up hitting an BUG() in the
> driver code.
>
> Please git pull the following branch:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/for-jens-4.2
>
> which has the outlined changes. The branch is based on your
> 'for-4.2/drivers' branch but it also nicely applies to Linus's tree and
> your 'for-linus'.
>
>   drivers/block/xen-blkback/blkback.c |   4 +-
>   drivers/block/xen-blkfront.c        | 128 ++++++++++++++++++++----------------
>   2 files changed, 74 insertions(+), 58 deletions(-)
>
> Bob Liu (3):
>        xen-blkfront: introduce blkfront_gather_backend_features()
>        xen-blkfront: don't add indirect pages to list when !feature_persistent
>        xen-blkback: replace work_pending with work_busy in purge_persistent_gnt()

Pulled, thanks Konrad.


-- 
Jens Axboe