From d7e8eb5d9216c6a4f963aa6d07e29680af17d739 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Tue, 7 Jan 2014 23:24:14 +0000
Subject: [PATCH] target/rd: Add support for protection SGL setup + release

This patch adds rd_build_prot_space() + rd_release_prot_space() logic
to setup + release protection information scatterlists.

It also adds rd_init_prot() + rd_free_prot() se_subsystem_api
callbacks used by target core code for setup + release of
protection information.

v2 changes:
  - Drop unused sg_table from rd_release_prot_space (Wei)
  - Drop rd_release_prot_space call from rd_free_device

Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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