On Tue 12-04-16 14:10:20, Michal Hocko wrote:
[...]
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 6d1da0ceaf1e..d80c9755ffc7 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -3030,8 +3030,8 @@ should_compact_retry(struct alloc_context *ac, int
> order, int alloc_flags,
> * failure could be caused by weak migration mode.
> */
> if (compaction_failed(compact_result)) {
> - if (*migrate_mode == MIGRATE_ASYNC) {
> - *migrate_mode = MIGRATE_SYNC_LIGHT;
> + if (*migrate_mode < MIGRATE_SYNC) {
> + *migrate_mode++;
> return true;
this should be (*migrate_mode)++ of course.
> }
> return false;
--
Michal Hocko
SUSE Labs
