From 5ac9f62267dc92c7735c642a5942d9e6c1190308 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Wed, 25 Mar 2009 20:55:00 -0400
Subject: function-graph: add proper initialization for init task

Impact: fix to crash going to kexec

The init task did not properly initialize the function graph pointers.
Altough these pointers are NULL, they can not be assumed to be NULL
for the init task, and must still be properly initialize.

This usually is not an issue since a problem only arises when a task
exits, and the init tasks do not usually exit. But when doing tests
with kexec, the init tasks do exit, and the bug appears.

This patch properly initializes the init tasks function graph data
structures.

Reported-and-Tested-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <alpine.DEB.2.00.0903252053080.5675@gandalf.stny.rr.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/init_task.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include/linux/init_task.h')

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index e752d973fa21..cada05447bc8 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -5,6 +5,7 @@
 #include <linux/irqflags.h>
 #include <linux/utsname.h>
 #include <linux/lockdep.h>
+#include <linux/ftrace.h>
 #include <linux/ipc.h>
 #include <linux/pid_namespace.h>
 #include <linux/user_namespace.h>
@@ -184,6 +185,7 @@ extern struct cred init_cred;
 	INIT_IDS							\
 	INIT_TRACE_IRQFLAGS						\
 	INIT_LOCKDEP							\
+	INIT_FTRACE_GRAPH						\
 }
 
 
-- 
cgit v1.2.3


From 17a5138d204014b00cb9c1d6e8ff311993041b5c Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Mon, 13 Apr 2009 14:39:47 -0700
Subject: aio: remove INIT_KIOCTX

Unused after 20dcae32439384b6863c626bb3b2a09bed65b33e aka
"[PATCH] aio: remove kioctx from mm_struct".

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/init_task.h | 13 -------------
 1 file changed, 13 deletions(-)

(limited to 'include/linux/init_task.h')

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index dcfb93337e9a..d87247d2641f 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -15,19 +15,6 @@
 extern struct files_struct init_files;
 extern struct fs_struct init_fs;
 
-#define INIT_KIOCTX(name, which_mm) \
-{							\
-	.users		= ATOMIC_INIT(1),		\
-	.dead		= 0,				\
-	.mm		= &which_mm,			\
-	.user_id	= 0,				\
-	.next		= NULL,				\
-	.wait		= __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
-	.ctx_lock	= __SPIN_LOCK_UNLOCKED(name.ctx_lock), \
-	.reqs_active	= 0U,				\
-	.max_reqs	= ~0U,				\
-}
-
 #define INIT_MM(name) \
 {			 					\
 	.mm_rb		= RB_ROOT,				\
-- 
cgit v1.2.3