From 0d61f0b3e222b588480e2ad1e85bb2ea57561c4b Mon Sep 17 00:00:00 2001
From: Scott Wood <scottwood@freescale.com>
Date: Sat, 18 Jul 2015 14:24:57 -0500
Subject: [PATCH] powerpc/booke64: Move mb() to __set_pte_at() with kernel-addr
 test

map_kernel() doesn't catch all places that create kernel PTEs.  In
particular, vmalloc() calls set_pte_at() directly.  This causes a
crash when booting a non-SMP kernel on e6500.

Move the sync to __set_pte(), to be executed only for kernel addresses.

Signed-off-by: Scott Wood <scottwood@freescale.com>
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