qemu: conf: Export qemuAddSharedDisk

In cases where we know the device is a disk we can avoid using the full
device definition.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>

src/qemu/qemu_conf.c

@@ -1400,7 +1400,7 @@ qemuSharedDeviceEntryInsert(virQEMUDriverPtr driver,
  * records all the domains that use the shared device if the entry
  * already exists, otherwise add a new entry.
  */
-static int
+int
 qemuAddSharedDisk(virQEMUDriverPtr driver,
                   virDomainDiskDefPtr disk,
                   const char *name)

src/qemu/qemu_conf.h

@@ -339,6 +339,11 @@ char *qemuGetSharedDeviceKey(const char *disk_path)
 
 void qemuSharedDeviceEntryFree(void *payload, const void *name);
 
+int qemuAddSharedDisk(virQEMUDriverPtr driver,
+                      virDomainDiskDefPtr disk,
+                      const char *name)
+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
+
 int qemuAddSharedDevice(virQEMUDriverPtr driver,
                         virDomainDeviceDefPtr dev,
                         const char *name)