tree e0a04f974153136eafe13793ee59be58c37c5ffc
parent b2eb705e00a9b9a9b3122192a7ab3e9058f0c48a
author Roland Dreier <roland@purestorage.com> 1309898092 -0700
committer Nicholas Bellinger <nab@linux-iscsi.org> 1311327467 +0000

target: Implement Block Device Characteristics VPD page

Implement page B1h, Block Device Characteristics, so that we can report
a medium rotation rate of 1 (non-rotating / solid state) if the
is_nonrot device attribute is set; we update the iblock backend to set
this attribute if the underlying Linux block device has its nonrot
flag set.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>