Commit c7e89b16 authored Jul 08, 2011 by Heechul Yun Committed by Russell King Jul 08, 2011

ARM: 6995/2: mm: remove unnecessary cache flush on v6 copypage



Originally introduced to maintain coherency between icache and dcache
in v6 nonaliasing mode. This is now handled by __sync_icache_dcache since
c0177800, therefore unnecessary in this function.

Signed-off-by: Heechul Yun <heechul@illinois.edu>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 54d52573

arch/arm/mm/copypage-v6.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -41,7 +41,6 @@ static void v6_copy_user_highpage_nonaliasing(struct page *to,
		kfrom = kmap_atomic(from, KM_USER0);
		kto = kmap_atomic(to, KM_USER1);
		copy_page(kto, kfrom);
		__cpuc_flush_dcache_area(kto, PAGE_SIZE);
		kunmap_atomic(kto, KM_USER1);
		kunmap_atomic(kfrom, KM_USER0);
		}