X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Ferr.h;h=1ab1d44f8d3be7a28c8a1a849c72e1f841424015;hb=refs%2Fremotes%2Fvserver;hp=17c55df13615a9bda172e80c6f4711c11f3183e8;hpb=c7b5ebbddf7bcd3651947760f423e3783bbe6573;p=linux-2.6.git

diff --git a/include/linux/err.h b/include/linux/err.h
index 17c55df13..1ab1d44f8 100644
--- a/include/linux/err.h
+++ b/include/linux/err.h
@@ -13,6 +13,12 @@
  * This should be a per-architecture thing, to allow different
  * error and pointer decisions.
  */
+#define MAX_ERRNO	4095
+
+#ifndef __ASSEMBLY__
+
+#define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
+
 static inline void *ERR_PTR(long error)
 {
 	return (void *) error;
@@ -25,7 +31,9 @@ static inline long PTR_ERR(const void *ptr)
 
 static inline long IS_ERR(const void *ptr)
 {
-	return unlikely((unsigned long)ptr > (unsigned long)-1000L);
+	return IS_ERR_VALUE((unsigned long)ptr);
 }
 
+#endif
+
 #endif /* _LINUX_ERR_H */