[libvirt] [PATCH 1/2] domain_conf: adding virDomainDiskIsCdromOrFloppy helper
Checking if a device is a CDROM or floppy disk is a common
verification that is made a few times in the code, and next
patch is going to add one more.
Let's put it into a helper to enhance readability and spare some
lines of code.
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/conf/domain_conf.c | 8 ++++++++
src/conf/domain_conf.h | 2 ++
src/libvirt_private.syms | 1 +
src/qemu/qemu_command.c | 3 +--
src/qemu/qemu_driver.c | 3 +--
src/qemu/qemu_hotplug.c | 6 ++----
6 files changed, 15 insertions(+), 8 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index bbde3788a6..b6be1e730d 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -16708,6 +16708,14 @@ void virDomainDiskInsertPreAlloced(virDomainDefPtr def,
}
+bool
+virDomainDiskIsCdromOrFloppy(virDomainDiskDefPtr disk)
+{
+ return disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM ||
+ disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY;
+}
+
+
virDomainDiskDefPtr
virDomainDiskRemove(virDomainDefPtr def, size_t i)
{
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 12eb71c197..2a1c6fd18b 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3579,4 +3579,6 @@ virDomainGraphicsGetRenderNode(const virDomainGraphicsDef
*graphics);
bool
virDomainGraphicsNeedsAutoRenderNode(const virDomainGraphicsDef *graphics);
+bool
+virDomainDiskIsCdromOrFloppy(virDomainDiskDefPtr disk);
#endif /* LIBVIRT_DOMAIN_CONF_H */
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 6e64e77839..817d9bc28d 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -342,6 +342,7 @@ virDomainDiskInsert;
virDomainDiskInsertPreAlloced;
virDomainDiskIoTypeFromString;
virDomainDiskIoTypeToString;
+virDomainDiskIsCdromOrFloppy;
virDomainDiskMirrorStateTypeFromString;
virDomainDiskMirrorStateTypeToString;
virDomainDiskModelTypeFromString;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index a3e845a848..2c663c9009 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1666,8 +1666,7 @@ qemuBuildDriveSourceStr(virDomainDiskDefPtr disk,
/* nothing to format if the drive is empty */
if (!(source || srcprops) ||
- ((disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY ||
- disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) &&
+ (virDomainDiskIsCdromOrFloppy(disk) &&
disk->tray_status == VIR_DOMAIN_DISK_TRAY_OPEN)) {
ret = 0;
goto cleanup;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index fe2c586274..599c0f175f 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -8021,8 +8021,7 @@ qemuDomainChangeDiskLive(virDomainObjPtr vm,
if (!virStorageSourceIsSameLocation(disk->src, orig_disk->src)) {
/* Disk source can be changed only for removable devices */
- if (disk->device != VIR_DOMAIN_DISK_DEVICE_CDROM &&
- disk->device != VIR_DOMAIN_DISK_DEVICE_FLOPPY) {
+ if (!virDomainDiskIsCdromOrFloppy(disk)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disk source can be changed only in removable "
"drives"));
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index ef14b1977c..0ba1cc48c9 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -1230,8 +1230,7 @@ qemuDomainAttachDeviceDiskLiveInternal(virQEMUDriverPtr driver,
virDomainDiskDefPtr disk = dev->data.disk;
int ret = -1;
- if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM ||
- disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY) {
+ if (virDomainDiskIsCdromOrFloppy(disk)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("cdrom/floppy device hotplug isn't supported"));
return -1;
@@ -1314,8 +1313,7 @@ qemuDomainAttachDeviceDiskLive(virQEMUDriverPtr driver,
/* this API overloads media change semantics on disk hotplug
* for devices supporting media changes */
- if ((disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM ||
- disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY) &&
+ if (virDomainDiskIsCdromOrFloppy(disk) &&
(orig_disk = virDomainDiskFindByBusAndDst(vm->def, disk->bus,
disk->dst))) {
if (qemuDomainChangeEjectableMedia(driver, vm, orig_disk,
disk->src, false) < 0)
--
2.20.1