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Re: [Qemu-devel] [PATCH v2 03/11] block: Add overlay BDS pointer into th
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH v2 03/11] block: Add overlay BDS pointer into the BlockDriverState struct |
Date: |
Tue, 27 May 2014 09:57:19 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 |
On 05/27/2014 08:28 AM, Jeff Cody wrote:
> Now that node-names can reference an individual BlockDriverState without
> needing to navigate downwards from the 'device' level, in order to find
> the top-most image (active layer) we need a pointer to the overlay of a
> BDS.
>
> This will allow QMP commands to reference an image solely by its
> node-name, without also needing to pass in the corresponding 'device'
> string.
>
> Signed-off-by: Jeff Cody <address@hidden>
> ---
> block.c | 5 +++++
> include/block/block_int.h | 1 +
> 2 files changed, 6 insertions(+)
>
Deceptively simple - good thing we already refactored all chain
manipulations to go through bdrv_set_backing_hd().
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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- [Qemu-devel] [PATCH v2 00/11] Modify block jobs to use node-names, Jeff Cody, 2014/05/27
- [Qemu-devel] [PATCH v2 01/11] block: Auto-generate node_names for each BDS entry, Jeff Cody, 2014/05/27
- [Qemu-devel] [PATCH v2 02/11] block: add helper function to determine if a BDS is in a chain, Jeff Cody, 2014/05/27
- [Qemu-devel] [PATCH v2 03/11] block: Add overlay BDS pointer into the BlockDriverState struct, Jeff Cody, 2014/05/27
- Re: [Qemu-devel] [PATCH v2 03/11] block: Add overlay BDS pointer into the BlockDriverState struct,
Eric Blake <=
- [Qemu-devel] [PATCH v2 04/11] block: add helper function to find the active layer of any BDS, Jeff Cody, 2014/05/27
- [Qemu-devel] [PATCH v2 05/11] block: simplify bdrv_find_base(), Jeff Cody, 2014/05/27
- [Qemu-devel] [PATCH v2 06/11] block: make 'top' argument to block-commit optional, Jeff Cody, 2014/05/27
- [Qemu-devel] [PATCH v2 08/11] block: extend block-commit to accept a string for the backing file, Jeff Cody, 2014/05/27