On 10/23/2014 10:10 AM, Joonsoo Kim wrote: > Changes from v3: > Add one more check in free_one_page() that checks whether migratetype is > MIGRATE_ISOLATE or not. Without this, abovementioned case 1 could happens.
Good catch. > Cc: <sta...@vger.kernel.org> > Signed-off-by: Joonsoo Kim <iamjoonsoo....@lge.com> Acked-by: Vlastimil Babka <vba...@suse.cz> (minor suggestion below) > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -749,9 +749,16 @@ static void free_one_page(struct zone *zone, > if (nr_scanned) > __mod_zone_page_state(zone, NR_PAGES_SCANNED, -nr_scanned); > > + if (unlikely(has_isolate_pageblock(zone) || Would it make any difference if this was read just once and not in each loop iteration? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
