1 files changed, 14 insertions, 0 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index 2505740b81d2..4f55c736be11 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -185,4 +185,18 @@ config HAVE_RCU_TABLE_FREE
 config ARCH_HAVE_NMI_SAFE_CMPXCHG
         bool
 
+config HAVE_ALIGNED_STRUCT_PAGE
+        bool
+        help
+          This makes sure that struct pages are double word aligned and that
+          e.g. the SLUB allocator can perform double word atomic operations
+          on a struct page for better performance. However selecting this
+          might increase the size of a struct page by a word.
+
+config HAVE_CMPXCHG_LOCAL
+        bool
+
+config HAVE_CMPXCHG_DOUBLE
+        bool
+
 source "kernel/gcov/Kconfig"