diff options
| -rw-r--r-- | mm/hugetlb.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 82efecbab96..ae2959bb59c 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -302,8 +302,17 @@ free: list_del(&page->lru); if ((--needed) >= 0) enqueue_huge_page(page); - else - update_and_free_page(page); + else { + /* + * Decrement the refcount and free the page using its + * destructor. This must be done with hugetlb_lock + * unlocked which is safe because free_huge_page takes + * hugetlb_lock before deciding how to free the page. + */ + spin_unlock(&hugetlb_lock); + put_page(page); + spin_lock(&hugetlb_lock); + } } return ret; |