diff --git a/mm/mmap.c b/mm/mmap.c
index e8a497c193b5..ac4e7970e1b2 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1835,7 +1835,8 @@ get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 		 * so use shmem's get_unmapped_area in case it can be huge.
 		 */
 		get_area = shmem_get_unmapped_area;
-	} else if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) {
+	} else if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)
+		   && IS_ALIGNED(len, PMD_SIZE)) {
 		/* Ensures that larger anonymous mappings are THP aligned. */
 		get_area = thp_get_unmapped_area;
 	}