block: disable sysfs parts of the disk command filter

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

diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 0592936..56ba373 100644 (file)
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -1,8 +1,11 @@
 #ifndef _LINUX_LINKAGE_H
 #define _LINUX_LINKAGE_H
 
+#include <linux/compiler.h>
 #include <asm/linkage.h>
 
+#define notrace __attribute__((no_instrument_function))
+
 #ifdef __cplusplus
 #define CPP_ASMLINKAGE extern "C"
 #else
@@ -17,8 +20,27 @@
 # 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