From 976222e05ea5a9959ccf880d7a24efbf79b3c6cf Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Fri, 15 Apr 2011 11:38:29 -0400
Subject: [PATCH] xen/blkback: Move the check for misaligned I/O higher.

We move it up higher to be in same loop that actually computes
the sector number.

This way, all of the code that deals with verifying that the
request is correct is all done before we do any of the
page mapping, I/O submission, etc.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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