Commit fedf5b9b authored by Vineet Gupta's avatar 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: default avatarVineet Gupta <vgupta@synopsys.com>
parent 5971bc71
...@@ -742,6 +742,7 @@ void copy_user_highpage(struct page *to, struct page *from, ...@@ -742,6 +742,7 @@ void copy_user_highpage(struct page *to, struct page *from,
*/ */
if (clean_src_k_mappings) { if (clean_src_k_mappings) {
__flush_dcache_page(kfrom, kfrom); __flush_dcache_page(kfrom, kfrom);
clear_bit(PG_arch_1, &from->flags);
} else { } else {
set_bit(PG_arch_1, &from->flags); set_bit(PG_arch_1, &from->flags);
} }
......
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