#define arch_start_context_switch(prev) do {} while (0)
#endif
+#ifndef CONFIG_HAVE_ARCH_SOFT_DIRTY
+static inline int pte_soft_dirty(pte_t pte)
+{
+ return 0;
+}
+
+static inline int pmd_soft_dirty(pmd_t pmd)
+{
+ return 0;
+}
+
+static inline pte_t pte_mksoft_dirty(pte_t pte)
+{
+ return pte;
+}
+
+static inline pmd_t pmd_mksoft_dirty(pmd_t pmd)
+{
+ return pmd;
+}
+#endif
+
#ifndef __HAVE_PFNMAP_TRACKING
/*
* Interfaces that can be used by architecture code to keep track of