Re: [PATCH v2] fix a ambiguous output of the command:'virsh vol-create-as'

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2013/10/8 Michal Privoznik <mprivozn@xxxxxxxxxx>:
> On 07.10.2013 16:04, Hongwei Bi wrote:
>> I created a storage volume(eg: test) from a storage pool(eg:vg10) using
>> the following command:"virsh vol-create-as --pool vg10 --name test --capacity 300M."
>> When I re-executed the above command, the output was as the following:
>> "error: Failed to create vol test
>>  error: Storage volume not found: storage vol 'test' already exists"
>>
>> I think the output "Storage volume not found" is not appropriate. Because in fact storage
>> vol test has been found at this time. And then I think virErrorNumber should includes
>> VIR_ERR_STORAGE_EXIST which can also be used elsewhere. So I make this patch. The result
>> is as following:
>> "error: Failed to create vol test
>>  error: storage volume 'test' exists already"
>>
>> ---
>>  include/libvirt/virterror.h  |    1 +
>>  src/storage/storage_driver.c |    4 ++--
>>  src/util/virerror.c          |    6 ++++++
>>  3 files changed, 9 insertions(+), 2 deletions(-)
>>
>> diff --git a/include/libvirt/virterror.h b/include/libvirt/virterror.h
>> index c1960c8..fd14237 100644
>> --- a/include/libvirt/virterror.h
>> +++ b/include/libvirt/virterror.h
>> @@ -296,6 +296,7 @@ typedef enum {
>>      VIR_ERR_ACCESS_DENIED = 88,         /* operation on the object/resource
>>                                             was denied */
>>      VIR_ERR_DBUS_SERVICE = 89,          /* error from a dbus service */
>> +    VIR_ERR_STORAGE_VOL_EXISTS = 90,         /* the storage vol already exists */
>>  } virErrorNumber;
>>
>>  /**
>> diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c
>> index 6c39284..d419a36 100644
>> --- a/src/storage/storage_driver.c
>> +++ b/src/storage/storage_driver.c
>> @@ -1538,8 +1538,8 @@ storageVolCreateXML(virStoragePoolPtr obj,
>>          goto cleanup;
>>
>>      if (virStorageVolDefFindByName(pool, voldef->name)) {
>> -        virReportError(VIR_ERR_NO_STORAGE_VOL,
>> -                       _("storage vol '%s' already exists"), voldef->name);
>> +        virReportError(VIR_ERR_STORAGE_VOL_EXISTS,
>> +                       _("'%s'"), voldef->name);
>>          goto cleanup;
>>      }
>>
>> diff --git a/src/util/virerror.c b/src/util/virerror.c
>> index ca25678..3f55cec 100644
>> --- a/src/util/virerror.c
>> +++ b/src/util/virerror.c
>> @@ -1004,6 +1004,12 @@ virErrorMsg(virErrorNumber error, const char *info)
>>              else
>>                  errmsg = _("Storage volume not found: %s");
>>              break;
>> +        case VIR_ERR_STORAGE_VOL_EXISTS:
>> +            if (info == NULL)
>> +                errmsg = _("this storage volume exists already");
>> +            else
>> +                errmsg = _("storage volume %s exists already");
>> +            break;
>>          case VIR_ERR_STORAGE_PROBE_FAILED:
>>              if (info == NULL)
>>                  errmsg = _("Storage pool probe failed");
>>
>
> ACKed and pushed.
>
> Michal

Pushed; Thanks.

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