diff --git a/fs/open.c b/fs/open.c
index 31191bf513e40ebcbd05668cc0db2bc46c1c1311..4f01e06227c69190525944d4a6da07b850715172 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -290,10 +290,9 @@ static long do_sys_truncate(const char __user *pathname, loff_t length)
 	return error;
 }
 
-SYSCALL_DEFINE2(truncate, const char __user *, path, unsigned long, length)
+SYSCALL_DEFINE2(truncate, const char __user *, path, long, length)
 {
-	/* on 32-bit boxen it will cut the range 2^31--2^32-1 off */
-	return do_sys_truncate(path, (long)length);
+	return do_sys_truncate(path, length);
 }
 
 static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 8d8285a10db94cd22474f0861409e84e56fbd974..a990ace1a8380f01901b742a6b0821aff46a5d9d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -460,8 +460,7 @@ asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
 				void __user *data);
 asmlinkage long sys_umount(char __user *name, int flags);
 asmlinkage long sys_oldumount(char __user *name);
-asmlinkage long sys_truncate(const char __user *path,
-				unsigned long length);
+asmlinkage long sys_truncate(const char __user *path, long length);
 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
 asmlinkage long sys_stat(char __user *filename,
 			struct __old_kernel_stat __user *statbuf);