From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752982AbbHaMuI (ORCPT ); Mon, 31 Aug 2015 08:50:08 -0400 Received: from mx1.redhat.com ([209.132.183.28]:48649 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751322AbbHaMuG (ORCPT ); Mon, 31 Aug 2015 08:50:06 -0400 From: Vitaly Kuznetsov To: "James E.J. Bottomley" Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, "K. Y. Srinivasan" , Long Li , Dexuan Cui Subject: [PATCH] scsi_scan: move 'INQUIRY result too short' message to debug level Date: Mon, 31 Aug 2015 14:50:01 +0200 Message-Id: <1441025401-30044-1-git-send-email-vkuznets@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some Hyper-V hosts are known for ignoring SPC-2/3/4 requirement for 'INQUIRY data (see table ...) shall contain at least 36 bytes'. As a result we get tons on 'scsi 0:7:1:1: scsi scan: INQUIRY result too short (5), using 36' messages on console. As Hyper-V is also known for its serial port being extremely slow multi-VCPU guests we get CPU blocked putting these (useless) messages on console (e.g. happens when we add multiple disks). Move them to debug level. Signed-off-by: Vitaly Kuznetsov --- drivers/scsi/scsi_scan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index f9f3f82..cb5c50a 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -701,7 +701,7 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, * strings. */ if (sdev->inquiry_len < 36) { - sdev_printk(KERN_INFO, sdev, + sdev_printk(KERN_DEBUG, sdev, "scsi scan: INQUIRY result too short (%d)," " using 36\n", sdev->inquiry_len); sdev->inquiry_len = 36; -- 2.4.3