diff options
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index c0efe921bca5..20ca887ea769 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1280,6 +1280,12 @@ static int unmap_and_move_huge_page(new_page_t get_new_page, return -ENOSYS; } + if (page_count(hpage) == 1) { + /* page was freed from under us. So we are done. */ + putback_active_hugepage(hpage); + return MIGRATEPAGE_SUCCESS; + } + new_hpage = get_new_page(hpage, private); if (!new_hpage) return -ENOMEM; |