diff --git a/mm/Kconfig b/mm/Kconfig
index f88be1c..a5dae9a 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -712,6 +712,17 @@
 config GUP_GET_PTE_LOW_HIGH
 	bool
 
+config READ_ONLY_THP_FOR_FS
+	bool "Read-only THP for filesystems (EXPERIMENTAL)"
+	depends on TRANSPARENT_HUGE_PAGECACHE && SHMEM
+
+	help
+	  Allow khugepaged to put read-only file-backed pages in THP.
+
+	  This is marked experimental because it is a new feature. Write
+	  support of file THPs will be developed in the next few release
+	  cycles.
+
 config ARCH_HAS_PTE_SPECIAL
 	bool