On Fri, Dec 13, 2013 at 03:53:26PM +0900, Joonsoo Kim wrote: > From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> > > Let's add a comment about where the failed page goes to, which makes > code more readable. > > Acked-by: Christoph Lameter <cl@xxxxxxxxx> > Reviewed-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> > Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> > > diff --git a/mm/migrate.c b/mm/migrate.c > index 3747fcd..c6ac87a 100644 > --- a/mm/migrate.c > +++ b/mm/migrate.c > @@ -1123,7 +1123,12 @@ int migrate_pages(struct list_head *from, new_page_t get_new_page, > nr_succeeded++; > break; > default: > - /* Permanent failure */ > + /* > + * Permanent failure (-EBUSY, -ENOSYS, etc.): > + * unlike -EAGAIN case, the failed page is > + * removed from migration page list and not > + * retried in the next outer loop. > + */ > nr_failed++; > break; > } Acked-by: Rafael Aquini <aquini@xxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>