From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Mon, 23 Dec 2013 20:31:24 +0000 (+0000)
Subject: target/iblock: Add blk_integrity + BIP passthrough support
X-Git-Tag: v3.14-rc1~17^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ecebbf6ccbca58b4470f092cfb0644df59ea05dd;p=pandora-kernel.git

target/iblock: Add blk_integrity + BIP passthrough support

This patch adds blk_integrity passthrough support for block_device
backends using IBLOCK.

This includes iblock_alloc_bip() + setup of bio_integrity_payload
information that attaches to the leading struct bio once bio_list
is populated during fast-path iblock_execute_rw() I/O dispatch.

It also updates setup in iblock_configure_device() to detect modes
of protection + se dev->dev_attrib.pi_prot_type accordingly, along
with creating required bio_set integrity mempools.

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>
---

Reading git-diff-tree failed