Re: [Qemu-devel] [PATCH v4 10/11] nbd-server: Use a separate BlockBackend

[Eric Blake]

On 07/14/2016 07:28 AM, Kevin Wolf wrote:
> The builtin NBD server uses its own BlockBackend now instead of reusing
> the monitor/guest device one.
> 
> This means that it has its own writethrough setting now. The builtin
> NBD server always uses writeback caching now regardless of whether the
> guest device has WCE enabled. qemu-nbd respects the cache mode given on
> the command line.
> 
> We still need to keep a reference to the monitor BB because we put an
> eject notifier on it, but we don't use it for any I/O.
> 
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
>  block.c             |  2 ++
>  blockdev-nbd.c      |  4 ++--
>  include/block/nbd.h |  3 ++-
>  nbd/server.c        | 25 ++++++++++++++++++++-----
>  qemu-nbd.c          |  4 ++--
>  5 files changed, 28 insertions(+), 10 deletions(-)
> 

Reviewed-by: Eric Blake <address@hidden>

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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