From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964934Ab1KJEh6 (ORCPT ); Wed, 9 Nov 2011 23:37:58 -0500 Received: from cantor2.suse.de ([195.135.220.15]:43620 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935864Ab1KJDgJ (ORCPT ); Wed, 9 Nov 2011 22:36:09 -0500 X-Mailbox-Line: From gregkh@clark.kroah.org Wed Nov 9 13:31:43 2011 Message-Id: <20111109213143.143056671@clark.kroah.org> User-Agent: quilt/0.48-16.4 Date: Wed, 09 Nov 2011 13:30:57 -0800 From: Greg KH To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Mike Sterling , "K.Y. Srinivasan" , Haiyang Zhang Subject: [010/264] Staging: hv: Add support for >2 TB LUN in storage driver. In-Reply-To: <20111109213508.GA3476@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mike Sterling commit cf55f4a8b6243b42fb91c56d1421db0d36d60f96 upstream. If a LUN larger than 2 TB is attached to a Linux VM on Hyper-V, we currently report a maximum size of 2 TB. This patch resolves the issue in hv_storvsc. Thanks to Robert Scheck for reporting the issue. Reported-by: Robert Scheck Signed-off-by: Mike Sterling Signed-off-by: K.Y. Srinivasan Signed-off-by: Haiyang Zhang Signed-off-by: Greg Kroah-Hartman --- drivers/staging/hv/hyperv_storage.h | 1 + drivers/staging/hv/storvsc_drv.c | 2 ++ 2 files changed, 3 insertions(+) --- a/drivers/staging/hv/hyperv_storage.h +++ b/drivers/staging/hv/hyperv_storage.h @@ -218,6 +218,7 @@ struct vstor_packet { #define STORVSC_MAX_LUNS_PER_TARGET 64 #define STORVSC_MAX_TARGETS 1 #define STORVSC_MAX_CHANNELS 1 +#define STORVSC_MAX_CMD_LEN 16 struct hv_storvsc_request; --- a/drivers/staging/hv/storvsc_drv.c +++ b/drivers/staging/hv/storvsc_drv.c @@ -701,6 +701,8 @@ static int storvsc_probe(struct hv_devic host->max_id = STORVSC_MAX_TARGETS; /* max # of channels */ host->max_channel = STORVSC_MAX_CHANNELS - 1; + /* max cmd length */ + host->max_cmd_len = STORVSC_MAX_CMD_LEN; /* Register the HBA and start the scsi bus scan */ ret = scsi_add_host(host, &device->device);