From fcd26f7ae2ea5889134e8b3d60a42ce8b993c95f Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 19 Jan 2009 22:44:04 -0800
Subject: [PATCH] sparc64: Fix DAX handling via userspace access from kernel.

If we do a userspace access from kernel mode, and get a
data access exception, we need to check the exception
table just like a normal fault does.

The spitfire DAX handler was doing this, but such logic
was missing from the sun4v DAX code.

Reported-by: Dennis Gilmore <dgilmore@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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