[libvirt] [PATCH 0/8 v3] Integration of lock managers in QEMU

Daniel P. Berrange berrange at redhat.com
Wed May 11 09:42:59 UTC 2011


On Wed, May 11, 2011 at 10:33:02AM +0100, Daniel P. Berrange wrote:
> This is an update to
> 
>   http://www.redhat.com/archives/libvir-list/2011-January/msg00952.html
> 
> Changes in this series
> 
>  - Lock manager plugin API is dramatically simpler
>  - Lock manager only protects disk content, not disk
>    metadata (eg file ownership/selinux label changes)
>  - Migration state transfer integrated
>  - Updated for latest sanlock API
>  - Locks are released upon VM pause and reacquired upon
>    resume
>  - Updated documentation
> 
> NB, as before, the lock manager plugin API is currently
> *internal* only, so out-of-tree 3rd party plugin impls
> will be not be supported. This restriction may be released
> in the future, once we have determined that the current
> plugin API is suitable for long term ABI guarentees.
> 
> My intention is to merge this initial series with the nop
> and sanlock plugin impls, and then provide a fcntl based
> impl later.

BTW, this series only applies ontop of the migration v3 series


Daniel
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