Commit fedf5b9b authored May 23, 2013 by Vineet Gupta

ARC: [mm] optimise VIPT dcache aliasing 2/x



Non-congruent SRC page in copy_user_page() is dcache clean in the end -
so record that fact, to avoid a subsequent extraneous flush.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

parent 5971bc71

arch/arc/mm/cache_arc700.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -742,6 +742,7 @@ void copy_user_highpage(struct page to, struct page from,
		*/
		if (clean_src_k_mappings) {
		__flush_dcache_page(kfrom, kfrom);
		clear_bit(PG_arch_1, &from->flags);
		} else {
		set_bit(PG_arch_1, &from->flags);
		}