From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 21 Jul 2011 04:41:48 +0000 (+0000)
Subject: target: ->map_task_SG conversion to ->map_control_SG and ->map_data_SG
X-Git-Tag: v3.1-rc1~305^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d20bb6147954d4fbd337a3d1b40c7eeae254cd7;p=pandora-kernel.git

target: ->map_task_SG conversion to ->map_control_SG and ->map_data_SG

This patch breaks up the ->map_task_SG() backend call into two seperate
->map_control_SG() and ->map_data_SG() in order to better address
IBLOCK and pSCSI.  IBLOCK only allocates bios for ->map_data_SG(), and
pSCSI will allocate a struct request for both cases.

This patch fixes incorrect usage of ->map_task_SG() for all se_cmd descriptors
in transport_generic_new_cmd() by moving the call into it's proper location
directly inside of transport_allocate_data_tasks()

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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