From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 18 Sep 2013 12:27:25 +0000 (+0900)
Subject: [SCSI] scsi_debug: factor out copying PI from dif_storep to prot_sglist
X-Git-Tag: v3.13-rc1~99^2~42
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb8c063c6afcd930b8da944927144f2982609638;p=pandora-kernel.git

[SCSI] scsi_debug: factor out copying PI from dif_storep to prot_sglist

If data integrity support is enabled, prot_verify_read() is called in
response to READ commands and it verifies protection info from dif_storep
by comparing against fake_storep, and copies protection info to
prot_sglist.

This factors out the portion of copying protection info into a separate
function.  It will also be reused in the next change after supporting
the opposite direction (copying prot_sglist to dif_storep).

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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