On 2013年01月04日 08:21, Eric Blake wrote:
On 01/02/2013 07:37 AM, Osier Yang wrote:
Like "rawio", "sgio" is only allowed for block disk of device
type "lun".
It doesn't default disk->sgio to "filtered" when parsing, as
it won't be able to distinguish explicitly requested "filtered"
and a default "filtered" in driver then. We have to error out for
explicit request when the kernel doesn't support the new sysfs
knob "unpriv_sgio", however, for defaulted "filtered", we can
just ignore it if the kernel doesn't support "unpriv_sgio".
---
src/conf/domain_conf.c | 55 +++++++++++++++-----
src/conf/domain_conf.h | 10 ++++
...qemuxml2argv-disk-scsi-lun-passthrough-sgio.xml | 32 +++++++++++
tests/qemuxml2xmltest.c | 1 +
4 files changed, 85 insertions(+), 13 deletions(-)
create mode 100644
tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-lun-passthrough-sgio.xml
+enum virDomainDiskSGIO {
+ VIR_DOMAIN_DISK_SGIO_DEFAULT = 0,
+ VIR_DOMAIN_DISK_SGIO_FILTERED,
+ VIR_DOMAIN_DISK_SGIO_UNFILTERED,
+
+ VIR_DOMAIN_DISK_SGIO_LAST
+};
+
typedef struct _virDomainBlockIoTuneInfo virDomainBlockIoTuneInfo;
struct _virDomainBlockIoTuneInfo {
unsigned long long total_bytes_sec;
@@ -638,6 +646,7 @@ struct _virDomainDiskDef {
virStorageEncryptionPtr encryption;
bool rawio_specified;
int rawio; /* no = 0, yes = 1 */
Don't know why we didn't make this 'bool', but that's pre-existing and
would be a separate cleanup patch.
+ int sgio;
I'd add /* enum virDomainDiskSGIO */, to make it easier to see what goes
in this int.
Okay, will add it when pushing.
ACK.
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