From f76348a360fe92063e07a8f54b0c1ea67f91e76c Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 24 Dec 2009 12:57:01 +0000
Subject: [PATCH] ARM: remove unnecessary cache flush

This cache flush occurs when we first insert a page into the page
tables, where a page did not exist previously.  There can be no
cache lines associated with this virtual mapping, so this cache
flush is redundant.

Tested-by: Mike Rapoport <mike@compulab.co.il>
Tested-by: Mikael Pettersson <mikpe at it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/fault-armv.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index c9b97e9836a2..82df01a72f4a 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -133,8 +133,6 @@ make_coherent(struct address_space *mapping, struct vm_area_struct *vma,
 	flush_dcache_mmap_unlock(mapping);
 	if (aliases)
 		do_adjust_pte(vma, addr, pfn, ptep);
-	else
-		flush_cache_page(vma, addr, pfn);
 }
 
 /*