diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory_hotplug.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index d397af38f9ce..6f203574ca1d 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -858,13 +858,10 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, undo_isolate_page_range(pfn, pfn + nr_pages, MIGRATE_MOVABLE); /* - * When exposing larger, physically contiguous memory areas to the - * buddy, shuffling in the buddy (when freeing onlined pages, putting - * them either to the head or the tail of the freelist) is only helpful - * for maintaining the shuffle, but not for creating the initial - * shuffle. Shuffle the whole zone to make sure the just onlined pages - * are properly distributed across the whole freelist. Make sure to - * shuffle once pageblocks are no longer isolated. + * Freshly onlined pages aren't shuffled (e.g., all pages are placed to + * the tail of the freelist when undoing isolation). Shuffle the whole + * zone to make sure the just onlined pages are properly distributed + * across the whole freelist - to create an initial shuffle. */ shuffle_zone(zone); |