From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 8 Jan 2014 12:06:30 +0000 (+0000)
Subject: target/rd: Add DIF protection into rd_execute_rw
X-Git-Tag: v3.14-rc1~17^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e611119b16c73a6e1c450d00deb4d7eef853336;p=pandora-kernel.git

target/rd: Add DIF protection into rd_execute_rw

This patch adds support for DIF protection into rd_execute_rw() code
for WRITE/READ I/O using sbc_dif_verify_[write,read]() logic.

It also adds rd_get_prot_table() for locating protection SGLs
assoicated with the ramdisk backend device.

v2 changes:
  - Make rd_execute_rw() to u32 sectors count instead of sector_t
  - Drop SCF_PROT usage

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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