tgt: allow to export devices in addition to files; define reload_service as stop+start

Signed-off-by: Maxim Storchak <m.storchak@gmail.com>

net/tgt/files/etc/init.d/tgt

@@ -14,7 +14,7 @@ logger="logger -p daemon.err -s -t $NAME"
 
 validate_lun_section() {
 	uci_validate_section tgt lun $1 \
-		'device:file' \
+		'device:or("file", "device")' \
 		'type:or("disk", "cd", "pt"):disk' \
 		'bstype:or("rdwr", "aio", "sg"):rdwr' \
 		'sync:bool:0' \
@@ -227,6 +227,11 @@ stop_service() {
 	$tgtadm --mode sys --op delete
 }
 
+reload_service() {
+	stop_service
+	start_service
+}
+
 show() {
 	$tgtadm --mode target --op show
 }