tree 031eec40ab42ac4ab04e59db539b8126ac31fb6d
parent 1234010684bb9cde51125ec3d1c71054a9f24f47
author Mark Lord <liml@rtr.ca> 1174054946 -0400
committer Jeff Garzik <jeff@garzik.org> 1177784161 -0400

libata: add support for READ/WRITE LONG

The READ/WRITE LONG commands are theoretically obsolete,
but the majority of drives in existance still implement them.

The WRITE_LONG and WRITE_LONG_ONCE commands are of particular
interest for fault injection testing -- eg. creating "media errors"
at specific locations on a disk.

The fussy bit is that these commands require a non-standard
sector size, usually 520 bytes instead of 512.

This patch adds support to libata for READ/WRITE LONG commands
issued via SG_IO/ATA_16.

Signed-off-by:  Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>