From mboxrd@z Thu Jan 1 00:00:00 1970 From: Akinobu Mita Subject: [PATCH v2 0/6] scsi: increase upper limit for max_sectors Date: Mon, 2 Jun 2014 22:56:43 +0900 Message-ID: <1401717409-5236-1-git-send-email-akinobu.mita@gmail.com> Return-path: Received: from mail-pb0-f42.google.com ([209.85.160.42]:60766 "EHLO mail-pb0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753850AbaFBN5E (ORCPT ); Mon, 2 Jun 2014 09:57:04 -0400 Received: by mail-pb0-f42.google.com with SMTP id md12so4270892pbc.1 for ; Mon, 02 Jun 2014 06:57:03 -0700 (PDT) Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org Cc: Akinobu Mita , "Elliott, Robert" , Christoph Hellwig , Jens Axboe , "James E.J. Bottomley" , Douglas Gilbert This patchset increases the SCSI mid level's limitation for max_sectors upto the block layer's limitation for max_hw_sectors, and enables the scsi_debug driver to request read/write commands with huge transfer length. This also includes a few fixes for the problems which can be caused by huge max_sectors. * Changes in v2 - Add Reviewed-by line - Split the scsi core change into three patches, suggested by Christoph Hellwig - Reorder conditional in command selection, suggested by Elliott, Robert Akinobu Mita (6): block: fix BLKSECTGET ioctl when max_sectors is greater than USHRT_MAX block: fix SG_[GS]ET_RESERVED_SIZE ioctl when max_sectors is huge sg: prevent integer overflow when converting from sectors to bytes sd: use READ_16 or WRITE_16 when transfer length is greater than 0xffff scsi: increase upper limit for max_sectors scsi_debug: allow huge transfer length for read/write commands block/compat_ioctl.c | 6 ++++-- block/ioctl.c | 5 ++++- block/scsi_ioctl.c | 15 +++++++++++---- drivers/scsi/scsi_debug.c | 6 +++--- drivers/scsi/sd.c | 5 +---- drivers/scsi/sg.c | 17 +++++++++++++---- include/scsi/scsi_host.h | 4 ++-- 7 files changed, 38 insertions(+), 20 deletions(-) Cc: "Elliott, Robert" Cc: Christoph Hellwig Cc: Jens Axboe Cc: "James E.J. Bottomley" Cc: Douglas Gilbert Cc: linux-scsi@vger.kernel.org -- 1.9.1