commit da3faabcb82eb4f1efec5fbe158b2460f756e712
Author: Simon Baatz <gmbnomis@gmail.com>
Date:   Mon Nov 14 22:55:51 2011 +0100

    - due to problem with mv_cesa and nfs: reverted f8b63c184ad13cc8adc3dadb557d4fbc29f76e4d ARM: 6382/1: Remove superfluous flush_kernel_dcache_page()

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index d5d8d5c..ce2afa5 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -303,6 +303,9 @@ static inline void flush_anon_page(struct vm_area_struct *vma,
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
 static inline void flush_kernel_dcache_page(struct page *page)
 {
+       /* highmem pages are always flushed upon kunmap already */
+       if ((cache_is_vivt() || cache_is_vipt_aliasing()) && !PageHighMem(page))
+               __cpuc_flush_dcache_area(page_address(page), PAGE_SIZE);
 }
 
 #define flush_dcache_mmap_lock(mapping) \