[PATCH, RFC 1/2] Add config option to enable FS/DAX PMD sharing

[Larry Bassel]

If enabled, sharing of FS/DAX PMDs will be attempted.

Signed-off-by: Larry Bassel <larry.bassel@xxxxxxxxxx>
---
 arch/x86/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e721273..e11702e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -297,6 +297,9 @@ config ARCH_SUSPEND_POSSIBLE
 config ARCH_WANT_HUGE_PMD_SHARE
 	def_bool y
 
+config MAY_SHARE_FSDAX_PMD
+	def_bool y
+
 config ARCH_WANT_GENERAL_HUGETLB
 	def_bool y
 
-- 
1.8.3.1