[libvirt] [PATCH 09/35] qemu: block: Add support for accessing directories via the 'vvfat' driver

[John Ferlan]

On 04/25/2018 11:15 AM, Peter Krempa wrote:
> Handle VIR_STORAGE_TYPE_DIR in qemuBlockStorageSourceGetBackendProps so
> that a 'vvfat' driver is used, which emulates a FAT filesystem
> containing the folders.
> 
> qemu requires us to add it as a storage layer, since a 'raw' layer is
> usually put on top of it.
> 
> Signed-off-by: Peter Krempa <pkrempa at redhat.com>
> ---
>  src/qemu/qemu_block.c | 27 ++++++++++++++++++++++++++-
>  1 file changed, 26 insertions(+), 1 deletion(-)
> 

So I suppose the only question I have for this one relates to whether
vvfat is supported in QEMU 1.5 or later and that's been the expectation
to use it for a long time, but libvirt wasn't doing the right thing?

Assuming 1.5 or later and that we don't have to do anything special or
use qemuBlockStorageSourceGetFileProps for some variant between 1.5 and
when vvfat was first supported,

Reviewed-by: John Ferlan <jferlan at redhat.com>

John

I'm half surprised we didn't have some test failure!