Re: [Qemu-devel] [PATCH 02/19] block: Add BDS.backing_overridden

2016-05-03 Thread Kevin Wolf
Am 03.05.2016 um 12:49 hat Max Reitz geschrieben: > On 02.05.2016 17:35, Kevin Wolf wrote: > > Am 26.04.2016 um 23:32 hat Max Reitz geschrieben: > >> If the backing file is overridden, this most probably does change the > >> guest-visible data of a BDS. Therefore, we will need to consider this in >

Re: [Qemu-devel] [PATCH 02/19] block: Add BDS.backing_overridden

2016-05-03 Thread Max Reitz
On 02.05.2016 17:35, Kevin Wolf wrote: > Am 26.04.2016 um 23:32 hat Max Reitz geschrieben: >> If the backing file is overridden, this most probably does change the >> guest-visible data of a BDS. Therefore, we will need to consider this in >> bdrv_refresh_filename(). >> >> Adding a new field to the

Re: [Qemu-devel] [PATCH 02/19] block: Add BDS.backing_overridden

2016-05-02 Thread Kevin Wolf
Am 26.04.2016 um 23:32 hat Max Reitz geschrieben: > If the backing file is overridden, this most probably does change the > guest-visible data of a BDS. Therefore, we will need to consider this in > bdrv_refresh_filename(). > > Adding a new field to the BDS is not nice, but it is very simple and >

Re: [Qemu-devel] [PATCH 02/19] block: Add BDS.backing_overridden

2016-04-26 Thread Eric Blake
On 04/26/2016 03:32 PM, Max Reitz wrote: > If the backing file is overridden, this most probably does change the > guest-visible data of a BDS. Therefore, we will need to consider this in > bdrv_refresh_filename(). > > Adding a new field to the BDS is not nice, but it is very simple and > exactly

[Qemu-devel] [PATCH 02/19] block: Add BDS.backing_overridden

2016-04-26 Thread Max Reitz
If the backing file is overridden, this most probably does change the guest-visible data of a BDS. Therefore, we will need to consider this in bdrv_refresh_filename(). Adding a new field to the BDS is not nice, but it is very simple and exactly keeps track of whether the backing file has been over