The qemuCheckSharedDevice function is operating only on disk devices.
Rename it and change the arguments to reflect that and refactor some
logic for more readability.
---
src/qemu/qemu_conf.c | 89 ++++++++++++++++++++++------------------------------
1 file changed, 38 insertions(+), 51 deletions(-)
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 79f8df8..5efabfb 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -814,82 +814,68 @@ qemuGetSharedDeviceKey(const char *device_path)
* Returns 0 if no conflicts, otherwise returns -1.
*/
static int
-qemuCheckSharedDevice(virHashTablePtr sharedDevices,
- virDomainDeviceDefPtr dev)
+qemuCheckSharedDisk(virHashTablePtr sharedDevices,
+ virDomainDiskDefPtr disk)
{
- virDomainDiskDefPtr disk = NULL;
char *sysfs_path = NULL;
char *key = NULL;
int val;
- int ret = 0;
- const char *src;
-
- if (dev->type == VIR_DOMAIN_DEVICE_DISK) {
- disk = dev->data.disk;
+ int ret = -1;
- /* The only conflicts between shared disk we care about now
- * is sgio setting, which is only valid for device='lun'.
- */
- if (disk->device != VIR_DOMAIN_DISK_DEVICE_LUN)
- return 0;
- } else {
+ if (disk->device != VIR_DOMAIN_DISK_DEVICE_LUN)
return 0;
- }
-
- src = virDomainDiskGetSource(disk);
- if (!(sysfs_path = virGetUnprivSGIOSysfsPath(src, NULL))) {
- ret = -1;
- goto cleanup;
- }
- /* It can't be conflict if unpriv_sgio is not supported
- * by kernel.
- */
- if (!virFileExists(sysfs_path))
+ if (!(sysfs_path = virGetUnprivSGIOSysfsPath(disk->src->path, NULL)))
goto cleanup;
- if (!(key = qemuGetSharedDeviceKey(src))) {
- ret = -1;
+ /* It can't be conflict if unpriv_sgio is not supported by kernel. */
+ if (!virFileExists(sysfs_path)) {
+ ret = 0;
goto cleanup;
}
- /* It can't be conflict if no other domain is
- * is sharing it.
- */
- if (!(virHashLookup(sharedDevices, key)))
+ if (!(key = qemuGetSharedDeviceKey(disk->src->path)))
goto cleanup;
- if (virGetDeviceUnprivSGIO(src, NULL, &val) < 0) {
- ret = -1;
+ /* It can't be conflict if no other domain is sharing it. */
+ if (!(virHashLookup(sharedDevices, key))) {
+ ret = 0;
goto cleanup;
}
- if ((val == 0 &&
- (disk->sgio == VIR_DOMAIN_DEVICE_SGIO_FILTERED ||
- disk->sgio == VIR_DOMAIN_DEVICE_SGIO_DEFAULT)) ||
- (val == 1 &&
- disk->sgio == VIR_DOMAIN_DEVICE_SGIO_UNFILTERED))
+ if (virGetDeviceUnprivSGIO(disk->src->path, NULL, &val) < 0)
goto cleanup;
- if (virDomainDiskGetType(disk) == VIR_STORAGE_TYPE_VOLUME) {
- virReportError(VIR_ERR_OPERATION_INVALID,
- _("sgio of shared disk 'pool=%s' 'volume=%s' conflicts "
- "with other active domains"),
- disk->src->srcpool->pool,
- disk->src->srcpool->volume);
- } else {
- virReportError(VIR_ERR_OPERATION_INVALID,
- _("sgio of shared disk '%s' conflicts with other "
- "active domains"), src);
+ if (!((val == 0 &&
+ (disk->sgio == VIR_DOMAIN_DEVICE_SGIO_FILTERED ||
+ disk->sgio == VIR_DOMAIN_DEVICE_SGIO_DEFAULT)) ||
+ (val == 1 &&
+ disk->sgio == VIR_DOMAIN_DEVICE_SGIO_UNFILTERED))) {
+
+ if (virDomainDiskGetType(disk) == VIR_STORAGE_TYPE_VOLUME) {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ _("sgio of shared disk 'pool=%s' 'volume=%s' conflicts "
+ "with other active domains"),
+ disk->src->srcpool->pool,
+ disk->src->srcpool->volume);
+ } else {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ _("sgio of shared disk '%s' conflicts with other "
+ "active domains"), disk->src->path);
+ }
+
+ goto cleanup;
}
- ret = -1;
+ ret = 0;
+
cleanup:
VIR_FREE(sysfs_path);
VIR_FREE(key);
return ret;
}
+
bool
qemuSharedDeviceEntryDomainExists(qemuSharedDeviceEntryPtr entry,
const char *name,
@@ -1007,10 +993,11 @@ qemuAddSharedDevice(virQEMUDriverPtr driver,
}
qemuDriverLock(driver);
- if (qemuCheckSharedDevice(driver->sharedDevices, dev) < 0)
- goto cleanup;
if (dev->type == VIR_DOMAIN_DEVICE_DISK) {
+ if (qemuCheckSharedDisk(driver->sharedDevices, disk) < 0)
+ goto cleanup;
+
if (!(key = qemuGetSharedDeviceKey(virDomainDiskGetSource(disk))))
goto cleanup;
} else {
--
2.0.2
--
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