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Simplify the Xen get version driver method

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The hypervisor driver is mandatory, so the the call to
xenHypervisorGetVersion must always succeed. Thus there
is no need to ever run xenDaemonGetVersion

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2013-04-30 14:53:50 +01:00
parent 1cdc465e0e
commit dfda6e1161
5 changed files with 1 additions and 44 deletions
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11
src/xen/xen_driver.c
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@ -512,16 +512,7 @@ xenUnifiedConnectSupportsFeature(virConnectPtr conn ATTRIBUTE_UNUSED, int featur
static int
xenUnifiedConnectGetVersion(virConnectPtr conn, unsigned long *hvVer)
{
xenUnifiedPrivatePtr priv = conn->privateData;
int i;
for (i = 0; i < XEN_UNIFIED_NR_DRIVERS; ++i)
if (priv->opened[i] &&
drivers[i]->xenVersion &&
drivers[i]->xenVersion(conn, hvVer) == 0)
return 0;
return -1;
return xenHypervisorGetVersion(conn, hvVer);
}

1
src/xen/xen_driver.h
View File

@ -93,7 +93,6 @@ extern int xenRegister (void);
* structure with direct calls in xen_unified.c.
*/
struct xenUnifiedDriver {
virDrvConnectGetVersion xenVersion;
virDrvConnectGetHostname xenGetHostname;
virDrvDomainSuspend xenDomainSuspend;
virDrvDomainResume xenDomainResume;

1
src/xen/xen_hypervisor.c
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@ -880,7 +880,6 @@ typedef struct xen_op_v2_dom xen_op_v2_dom;
static unsigned long long xenHypervisorGetMaxMemory(virDomainPtr domain);
struct xenUnifiedDriver xenHypervisorDriver = {
.xenVersion = xenHypervisorGetVersion,
.xenDomainSuspend = xenHypervisorPauseDomain,
.xenDomainResume = xenHypervisorResumeDomain,
.xenDomainDestroyFlags = xenHypervisorDestroyDomainFlags,

31
src/xen/xend_internal.c
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@ -1861,36 +1861,6 @@ xenDaemonNodeGetTopology(virConnectPtr conn, virCapsPtr caps)
return ret;
}
/**
* xenDaemonGetVersion:
* @conn: pointer to the Xen Daemon block
* @hvVer: return value for the version of the running hypervisor (OUT)
*
* Get the version level of the Hypervisor running.
*
* Returns -1 in case of error, 0 otherwise. if the version can't be
* extracted by lack of capacities returns 0 and @hvVer is 0, otherwise
* @hvVer value is major * 1,000,000 + minor * 1,000 + release
*/
int
xenDaemonGetVersion(virConnectPtr conn, unsigned long *hvVer)
{
struct sexpr *root;
int major, minor;
unsigned long version;
root = sexpr_get(conn, "/xend/node/");
if (root == NULL)
return -1;
major = sexpr_int(root, "node/xen_major");
minor = sexpr_int(root, "node/xen_minor");
sexpr_free(root);
version = major * 1000000 + minor * 1000;
*hvVer = version;
return 0;
}
/**
* xenDaemonListDomains:
@ -3652,7 +3622,6 @@ xenDaemonDomainBlockPeek(virDomainPtr domain,
}
struct xenUnifiedDriver xenDaemonDriver = {
.xenVersion = xenDaemonGetVersion,
.xenDomainSuspend = xenDaemonDomainSuspend,
.xenDomainResume = xenDaemonDomainResume,
.xenDomainShutdown = xenDaemonDomainShutdown,

1
src/xen/xend_internal.h
View File

@ -98,7 +98,6 @@ xenDaemonDomainFetch(virConnectPtr xend,
int xenDaemonOpen(virConnectPtr conn, virConnectAuthPtr auth,
unsigned int flags);
int xenDaemonClose(virConnectPtr conn);
int xenDaemonGetVersion(virConnectPtr conn, unsigned long *hvVer);
int xenDaemonNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info);
int xenDaemonNodeGetTopology(virConnectPtr conn, virCapsPtr caps);
int xenDaemonDomainSuspend(virDomainPtr domain);