Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

[mv-sheeva.git] / arch / Kconfig

diff --git a/arch/Kconfig b/arch/Kconfig
index 2505740b81d2e24696ff4420f2f9af86713b817b..4f55c736be11ea3aa3ac6762b0ec3d1371b872ce 100644 (file)
--- 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"