[libvirt] [PATCH] storage: Refresh pool after creating volume

[Martin Kletzander]

On 05/29/2013 11:53 AM, Osier Yang wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=965442
> 
> One has to refresh the pool to get the correct pool info, this
> patch refreshes the pool after creating a volume in code instead.
> Pool refreshing failure is fine to ignore with a warning.
> ---
>  src/storage/storage_driver.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c
> index a2b0c21..2a55095 100644
> --- a/src/storage/storage_driver.c
> +++ b/src/storage/storage_driver.c
> @@ -1443,6 +1443,9 @@ storageVolCreateXML(virStoragePoolPtr obj,
>  
>      }
>  
> +    if (backend->refreshPool && backend->refreshPool(obj->conn, pool) < 0)
> +        VIR_WARN("Failed to refresh pool after creating volume");
> +
>      VIR_INFO("Creating volume '%s' in storage pool '%s'",
>               volobj->name, pool->def->name);
>      ret = volobj;
> @@ -1606,6 +1609,9 @@ storageVolCreateXMLFrom(virStoragePoolPtr obj,
>          goto cleanup;
>      }
>  
> +    if (backend->refreshPool && backend->refreshPool(obj->conn, pool) < 0)
> +        VIR_WARN("Failed to refresh pool after creating volume");
> +
>      VIR_INFO("Creating volume '%s' in storage pool '%s'",
>               volobj->name, pool->def->name);
>      ret = volobj;
> 

I don't want to say NACK just like that, but I think the bug indicates
there's a problem in the storage driver.  It should automatically
reflect the changes made to that pool.  What's the structure that gets
updated only with refresh and not after the vol is created?  Does it do
with all the drivers?

Long story short; I think this bug fixes the symptom, not the problem.

Martin