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qemu: process: Fix and improve disk data extraction

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Extract information for all disks and update tray state and source only
for removable drives. Additionally store whether a drive is removable
and whether it has a tray.
This commit is contained in:
Peter Krempa 2016-05-19 15:29:02 +02:00
parent d9bee413ad
commit 894dc85fd1
4 changed files with 19 additions and 34 deletions
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4
src/qemu/qemu_domain.h
View File

@ -299,6 +299,10 @@ struct _qemuDomainDiskPrivate {
/* for storage devices using auth/secret
* NB: *not* to be written to qemu domain object XML */
qemuDomainSecretInfoPtr secinfo;
/* information about the device */
bool tray; /* device has tray */
bool removable; /* device media can be removed/changed */
};
# define QEMU_DOMAIN_HOSTDEV_PRIVATE(hostdev) \

18
src/qemu/qemu_monitor.c
View File

@ -1826,24 +1826,6 @@ qemuMonitorGetBlockInfo(qemuMonitorPtr mon)
}
struct qemuDomainDiskInfo *
qemuMonitorBlockInfoLookup(virHashTablePtr blockInfo,
const char *dev)
{
struct qemuDomainDiskInfo *info;
VIR_DEBUG("blockInfo=%p dev=%s", blockInfo, NULLSTR(dev));
if (!(info = virHashLookup(blockInfo, dev))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find info for device '%s'"),
NULLSTR(dev));
}
return info;
}
/**
* qemuMonitorGetAllBlockStatsInfo:
* @mon: monitor object

3
src/qemu/qemu_monitor.h
View File

@ -404,9 +404,6 @@ int qemuMonitorSetMemoryStatsPeriod(qemuMonitorPtr mon,
int qemuMonitorBlockIOStatusToError(const char *status);
virHashTablePtr qemuMonitorGetBlockInfo(qemuMonitorPtr mon);
struct qemuDomainDiskInfo *
qemuMonitorBlockInfoLookup(virHashTablePtr blockInfo,
const char *dev_name);
typedef struct _qemuBlockStats qemuBlockStats;
typedef qemuBlockStats *qemuBlockStatsPtr;

28
src/qemu/qemu_process.c
View File

@ -6254,25 +6254,27 @@ qemuProcessRefreshDisks(virQEMUDriverPtr driver,
for (i = 0; i < vm->def->ndisks; i++) {
virDomainDiskDefPtr disk = vm->def->disks[i];
qemuDomainDiskPrivatePtr diskpriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
struct qemuDomainDiskInfo *info;
if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK ||
disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
continue;
}
if (!(info = virHashLookup(table, disk->info.alias)))
continue;
info = qemuMonitorBlockInfoLookup(table, disk->info.alias);
if (!info)
goto cleanup;
if (info->tray_open) {
if (virDomainDiskGetSource(disk))
if (info->removable) {
if (info->empty)
ignore_value(virDomainDiskSetSource(disk, NULL));
disk->tray_status = VIR_DOMAIN_DISK_TRAY_OPEN;
} else {
disk->tray_status = VIR_DOMAIN_DISK_TRAY_CLOSED;
if (info->tray) {
if (info->tray_open)
disk->tray_status = VIR_DOMAIN_DISK_TRAY_OPEN;
else
disk->tray_status = VIR_DOMAIN_DISK_TRAY_CLOSED;
}
}
/* fill in additional data */
diskpriv->removable = info->removable;
diskpriv->tray = info->tray;
}
ret = 0;