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-rw-r--r--mm/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index f88be1cbcfb2..a5dae9a7eb51 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -712,6 +712,17 @@ config GUP_BENCHMARK
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