diff options
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index f2cf66633e62..e5f76da8cd4e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -8251,15 +8251,20 @@ struct page *has_unmovable_pages(struct zone *zone, struct page *page, /* * Hugepages are not in LRU lists, but they're movable. + * THPs are on the LRU, but need to be counted as #small pages. * We need not scan over tail pages because we don't * handle each tail page individually in migration. */ - if (PageHuge(page)) { + if (PageHuge(page) || PageTransCompound(page)) { struct page *head = compound_head(page); unsigned int skip_pages; - if (!hugepage_migration_supported(page_hstate(head))) + if (PageHuge(page)) { + if (!hugepage_migration_supported(page_hstate(head))) + return page; + } else if (!PageLRU(head) && !__PageMovable(head)) { return page; + } skip_pages = compound_nr(head) - (page - head); iter += skip_pages - 1; |