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nodedev: Return the parent for a virNodeDevicePtr struct

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When the 'parent' was added to the virNodeDevicePtr structure
by commit id 'e8a4ea75a' the 'parent' field was not properly filled
in when a virGetNodeDevice call was made within driver/config code.
Only the device name was ever filled in. Fetching the parent required
a second trip via virNodeDeviceGetParent into the node device lookup
code was required in order to retrieve the specific parent field (and
still the parent field was never filled in although it was free'd).

Since we have the data when we initially call virGetNodeDevice from
within driver/node_config code - let's just fill in the parent field
as well for anyone that wants it without requiring another trip into
the node_device lookup just to get the parent.

This will allow API's such as virConnectListAllNodeDevices,
virNodeDeviceLookupByName, and virNodeDeviceLookupSCSIHostByWWN
to retrieve both name and parent in the returned virNodeDevicePtr.

Signed-off-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
John Ferlan 2017-02-07 13:04:08 -05:00
parent 1e6bc3c581
commit 4337bc57be
3 changed files with 15 additions and 5 deletions
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4
src/conf/node_device_conf.c
View File

@ -2158,8 +2158,8 @@ virNodeDeviceObjListExport(virConnectPtr conn,
if ((!filter || filter(conn, devobj->def)) &&
virNodeDeviceMatch(devobj, flags)) {
if (devices) {
if (!(device = virGetNodeDevice(conn,
devobj->def->name))) {
if (!(device = virGetNodeDevice(conn, devobj->def->name)) ||
VIR_STRDUP(device->parent, devobj->def->parent) < 0) {
virNodeDeviceObjUnlock(devobj);
goto cleanup;
}

10
src/node_device/node_device_driver.c
View File

@ -261,7 +261,10 @@ nodeDeviceLookupByName(virConnectPtr conn, const char *name)
if (virNodeDeviceLookupByNameEnsureACL(conn, obj->def) < 0)
goto cleanup;
ret = virGetNodeDevice(conn, name);
if ((ret = virGetNodeDevice(conn, name))) {
if (VIR_STRDUP(ret->parent, obj->def->parent) < 0)
virObjectUnref(ret);
}
cleanup:
if (obj)
@ -302,7 +305,10 @@ nodeDeviceLookupSCSIHostByWWN(virConnectPtr conn,
if (virNodeDeviceLookupSCSIHostByWWNEnsureACL(conn, obj->def) < 0)
goto out;
dev = virGetNodeDevice(conn, obj->def->name);
if ((dev = virGetNodeDevice(conn, obj->def->name))) {
if (VIR_STRDUP(dev->parent, obj->def->parent) < 0)
virObjectUnref(dev);
}
virNodeDeviceObjUnlock(obj);
goto out;
}

6
src/test/test_driver.c
View File

@ -5450,7 +5450,10 @@ testNodeDeviceLookupByName(virConnectPtr conn, const char *name)
goto cleanup;
}
ret = virGetNodeDevice(conn, name);
if ((ret = virGetNodeDevice(conn, name))) {
if (VIR_STRDUP(ret->parent, obj->def->parent) < 0)
virObjectUnref(ret);
}
cleanup:
if (obj)
@ -5648,6 +5651,7 @@ testNodeDeviceCreateXML(virConnectPtr conn,
0);
dev = virGetNodeDevice(conn, def->name);
ignore_value(VIR_STRDUP(dev->parent, def->parent));
def = NULL;
cleanup:
testDriverUnlock(driver);