Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756337Ab3IMM6o (ORCPT ); Fri, 13 Sep 2013 08:58:44 -0400 Received: from mail-we0-f181.google.com ([74.125.82.181]:59347 "EHLO mail-we0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755987Ab3IMM6i (ORCPT ); Fri, 13 Sep 2013 08:58:38 -0400 From: Andy Whitcroft To: "James E.J. Bottomley" , "K. Y. Srinivasan" , Haiyang Zhang Cc: Andy Whitcroft , Ben Howard , linux-scsi@vger.kernel.org, devel@linuxdriverproject.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/4] scsi: add scsi device flag to request READ CAPACITY (16) be preferred Date: Fri, 13 Sep 2013 13:58:27 +0100 Message-Id: <1379077109-29606-3-git-send-email-apw@canonical.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1379077109-29606-1-git-send-email-apw@canonical.com> References: <1379077109-29606-1-git-send-email-apw@canonical.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1435 Lines: 40 BugLink: http://bugs.launchpad.net/bugs/1223499 Signed-off-by: Andy Whitcroft --- drivers/scsi/sd.c | 2 ++ include/scsi/scsi_device.h | 1 + 2 files changed, 3 insertions(+) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 5a8a04d..eba4d6c 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2104,6 +2104,8 @@ static int sd_try_rc16_first(struct scsi_device *sdp) return 1; if (scsi_device_protection(sdp)) return 1; + if (sdp->try_rc_16_first) + return 1; return 0; } diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 9b7fdb6..df3ed43 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -165,6 +165,7 @@ struct scsi_device { unsigned no_read_disc_info:1; /* Avoid READ_DISC_INFO cmds */ unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */ unsigned try_rc_10_first:1; /* Try READ_CAPACACITY_10 first */ + unsigned try_rc_16_first:1; /* Try READ_CAPACACITY_16 first */ unsigned is_visible:1; /* is the device visible in sysfs */ unsigned wce_default_on:1; /* Cache is ON by default */ unsigned no_dif:1; /* T10 PI (DIF) should be disabled */ -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/