From 39656e83dab918861931ef96e5c41731b0899e56 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 11 Jul 2019 20:56:49 -0700
Subject: mm: lift the x86_32 PAE version of gup_get_pte to common code

The split low/high access is the only non-READ_ONCE version of gup_get_pte
that did show up in the various arch implemenations.  Lift it to common
code and drop the ifdef based arch override.

Link: http://lkml.kernel.org/r/20190625143715.1689-4-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Miller <davem@davemloft.net>
Cc: James Hogan <jhogan@kernel.org>
Cc: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'mm/Kconfig')

diff --git a/mm/Kconfig b/mm/Kconfig
index ef6efedc5921..53e2ca54b385 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -762,6 +762,9 @@ config GUP_BENCHMARK
 
 	  See tools/testing/selftests/vm/gup_benchmark.c
 
+config GUP_GET_PTE_LOW_HIGH
+	bool
+
 config ARCH_HAS_PTE_SPECIAL
 	bool
 
-- 
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