staging: lustre: ldlm: improve lock timeout messages

In ldlm_expired_completion_wait() remove the useless LCONSOLE_WARN()
message and upgrade the LDLM_DEBUG() statement to LDLM_ERROR().
Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7296
Reviewed-on: http://review.whamcloud.com/16824Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/ldlm/ldlm_request.c

@@ -93,11 +93,7 @@ static int ldlm_expired_completion_wait(void *data)
 	if (!lock->l_conn_export) {
 		static unsigned long next_dump, last_dump;
 
-		LCONSOLE_WARN("lock timed out (enqueued at %lld, %llds ago)\n",
-			      (s64)lock->l_last_activity,
-			      (s64)(ktime_get_real_seconds() -
-				    lock->l_last_activity));
-		LDLM_DEBUG(lock, "lock timed out (enqueued at %lld, %llds ago); not entering recovery in server code, just going back to sleep",
+		LDLM_ERROR(lock, "lock timed out (enqueued at %lld, %llds ago); not entering recovery in server code, just going back to sleep",
 			   (s64)lock->l_last_activity,
 			   (s64)(ktime_get_real_seconds() -
 				 lock->l_last_activity));