From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 8 Nov 2012 04:01:10 +0000 (-0800)
Subject: target/sbc: Seperate WRITE_SAME based on UNMAP flag in sbc_ops
X-Git-Tag: v3.8-rc1~94^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd063bef414c51d79b9c6ea7a8ef8f9d319529bc;p=pandora-kernel.git

target/sbc: Seperate WRITE_SAME based on UNMAP flag in sbc_ops

This patch adds a new sbc_ops->execute_write_same_unmap() caller for use
with WRITE_SAME w/ UNMAP=1, and performs the ->execute_cmd() setup based
this bit within sbc_setup_write_same() code.

Also, makes the changes in sbc_parse_cdb() to handle a sense_reason_t
return from sbc_setup_write_same() on error.

Reported-by: Christoph Hellwig <hch@lst.de>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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