diff options
Diffstat (limited to 'mm/ksm.c')
| -rw-r--r-- | mm/ksm.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -580,8 +580,9 @@ again: * case this node is no longer referenced, and should be freed; * however, it might mean that the page is under page_freeze_refs(). * The __remove_mapping() case is easy, again the node is now stale; - * but if page is swapcache in migrate_page_move_mapping(), it might - * still be our page, in which case it's essential to keep the node. + * the same is in reuse_ksm_page() case; but if page is swapcache + * in migrate_page_move_mapping(), it might still be our page, + * in which case it's essential to keep the node. */ while (!get_page_unless_zero(page)) { /* @@ -651,6 +652,7 @@ static void remove_rmap_item_from_tree(struct rmap_item *rmap_item) ksm_pages_shared--; put_anon_vma(rmap_item->anon_vma); + rmap_item->head = NULL; rmap_item->address &= PAGE_MASK; } else if (rmap_item->address & UNSTABLE_FLAG) { |