From 8f27d487bcc2bd603c2d87e1729abcbc301f15db Mon Sep 17 00:00:00 2001
From: Asias He <asias@redhat.com>
Date: Tue, 19 Mar 2013 12:55:16 +0800
Subject: [PATCH] target/pscsi: Reject cross page boundary case in pscsi_map_sg

We can only have one page of data in each sg element, so we can not
cross a page boundary. Fail this case.

The 'while (len > 0 && data_len > 0) {}' loop is not necessary. The loop
can only be executed once.

Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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