[SCSI] block: make blk_rq_map_user take a NULL user-space buffer for WRITE

[safe/jmp/linux-2.6] / include / linux / linkage.h

diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 3faf599..fee9e59 100644 (file)
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -1,6 +1,7 @@
 #ifndef _LINUX_LINKAGE_H
 #define _LINUX_LINKAGE_H
 
+#include <linux/compiler.h>
 #include <asm/linkage.h>
 
 #ifdef __cplusplus
@@ -17,8 +18,27 @@
 # define asmregparm
 #endif
 
-#ifndef prevent_tail_call
-# define prevent_tail_call(ret) do { } while (0)
+#define __page_aligned_data    __section(.data.page_aligned) __aligned(PAGE_SIZE)
+#define __page_aligned_bss     __section(.bss.page_aligned) __aligned(PAGE_SIZE)
+
+/*
+ * This is used by architectures to keep arguments on the stack
+ * untouched by the compiler by keeping them live until the end.
+ * The argument stack may be owned by the assembly-language
+ * caller, not the callee, and gcc doesn't always understand
+ * that.
+ *
+ * We have the return value, and a maximum of six arguments.
+ *
+ * This should always be followed by a "return ret" for the
+ * protection to work (ie no more work that the compiler might
+ * end up needing stack temporaries for).
+ */
+/* Assembly files may be compiled with -traditional .. */
+#ifndef __ASSEMBLY__
+#ifndef asmlinkage_protect
+# define asmlinkage_protect(n, ret, args...)   do { } while (0)
+#endif
 #endif
 
 #ifndef __ALIGN
@@ -44,14 +64,6 @@
        name:
 #endif
 
-#define KPROBE_ENTRY(name) \
-  .pushsection .kprobes.text, "ax"; \
-  ENTRY(name)
-
-#define KPROBE_END(name) \
-  END(name);            \
-  .popsection
-
 #ifndef END
 #define END(name) \
   .size name, .-name
@@ -73,9 +85,4 @@
 #define ATTRIB_NORET  __attribute__((noreturn))
 #define NORET_AND     noreturn,
 
-#ifndef FASTCALL
-#define FASTCALL(x)    x
-#define fastcall
-#endif
-
 #endif