#include <linux/bug.h>
#include <linux/mm_types.h>
+#ifdef CONFIG_MMU
+
/*
* swapcache pages are stored in the swapper_space radix tree. We want to
* get good packing density in that tree, so the index should be dense in
return entry.val & SWP_OFFSET_MASK;
}
-#ifdef CONFIG_MMU
/* check whether a pte points to a swap entry */
static inline int is_swap_pte(pte_t pte)
{
return !pte_none(pte) && !pte_present(pte);
}
-#endif
/*
* Convert the arch-dependent pte representation of a swp_entry_t into an
}
#endif
+#endif /* CONFIG_MMU */
#endif /* _LINUX_SWAPOPS_H */