From: Douglas Gilbert <dougg@torque.net>
Date: Fri, 9 Sep 2005 10:07:32 +0000 (+1000)
Subject: [SCSI] permit READ DEFECT DATA in block/scsi_ioctl
X-Git-Tag: v2.6.14-rc1~5^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=942fc2fb73f2cac53484ebaf1c4f9af7aefaca83;p=pandora-kernel.git

[SCSI] permit READ DEFECT DATA in block/scsi_ioctl

The soon to be released smartmontools 5.34 uses the
READ DEFECT DATA command on SCSI disks. A disk that
has defect list entries (or worse, an increasing number
of them) is at risk.

Currently the first invocation of smartctl causes this:
   scsi: unknown opcode 0x37
message to appear the console and in the log.

The READ DEFECT DATA SCSI command does not change
the state of a disk. Its opcode (0x37) is valid for
SBC devices (e.g. disks) and SMC-2 devices (media
changers) where it is called INITIALIZE STATUS ELEMENT
WITH RANGE and again doesn't change the external state
of the device.

Changelog:
  - mark SCSI opcode 0x37 (READ DEFECT DATA) as
    safe_for_read

Signed-off-by: Douglas Gilbert <dougg@torque.net>
Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---

Reading git-diff-tree failed