#define PAGE_SIZE sysconf(_SC_PAGE_SIZE)
#define PAGE_MASK (~(PAGE_SIZE-1))
-/* ERROR OPS */
-#define MAX_ERRNO 4095
-
-#define IS_ERR_VALUE(x) caa_unlikely((x) >= (unsigned long)-MAX_ERRNO)
-
-static inline void *ERR_PTR(long error)
-{
- return (void *) error;
-}
-
-static inline long PTR_ERR(const void *ptr)
-{
- return (long) ptr;
-}
-
-static inline long IS_ERR(const void *ptr)
-{
- return IS_ERR_VALUE((unsigned long)ptr);
-}
-
-
/* Min / Max */
#define min_t(type, x, y) ({ \