move die notifier handling to common code

This patch moves the die notifier handling to common code.  Previous
various architectures had exactly the same code for it.  Note that the new
code is compiled unconditionally, this should be understood as an appel to
the other architecture maintainer to implement support for it aswell (aka
sprinkling a notify_die or two in the proper place)

arm had a notifiy_die that did something totally different, I renamed it to
arm_notify_die as part of the patch and made it static to the file it's
declared and used at.  avr32 used to pass slightly less information through
this interface and I brought it into line with the other architectures.

[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: fix vmalloc_sync_all bustage]
[bryan.wu@analog.com: fix vmalloc_sync_all in nommu]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: <linux-arch@vger.kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 files changed, 8 insertions, 22 deletions

diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index a5e0e99..53589d1 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -22,7 +22,7 @@
 #include <asm/nmi.h>
 #include <asm/hw_irq.h>
 #include <asm/apic.h>
-#include <asm/kdebug.h>
+#include <linux/kdebug.h>
 #include <asm/smp.h>
 
 #include <mach_ipi.h>
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index b545bc7..e00f75e 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -31,8 +31,8 @@
 #include <linux/kprobes.h>
 #include <linux/ptrace.h>
 #include <linux/preempt.h>
+#include <linux/kdebug.h>
 #include <asm/cacheflush.h>
-#include <asm/kdebug.h>
 #include <asm/desc.h>
 #include <asm/uaccess.h>
 
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 33cf2f3..fba121f 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -23,10 +23,10 @@
 #include <linux/kprobes.h>
 #include <linux/cpumask.h>
 #include <linux/kernel_stat.h>
+#include <linux/kdebug.h>
 
 #include <asm/smp.h>
 #include <asm/nmi.h>
-#include <asm/kdebug.h>
 
 #include "mach_traps.h"
 
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 58c8e01..4bec0cb 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -52,7 +52,7 @@
 #include <asm/unwind.h>
 #include <asm/smp.h>
 #include <asm/arch_hooks.h>
-#include <asm/kdebug.h>
+#include <linux/kdebug.h>
 #include <asm/stacktrace.h>
 
 #include <linux/module.h>
@@ -95,20 +95,6 @@ asmlinkage void machine_check(void);
 
 int kstack_depth_to_print = 24;
 static unsigned int code_bytes = 64;
-ATOMIC_NOTIFIER_HEAD(i386die_chain);
-
-int register_die_notifier(struct notifier_block *nb)
-{
-	vmalloc_sync_all();
-	return atomic_notifier_chain_register(&i386die_chain, nb);
-}
-EXPORT_SYMBOL(register_die_notifier); /* used modular by kdb */
-
-int unregister_die_notifier(struct notifier_block *nb)
-{
-	return atomic_notifier_chain_unregister(&i386die_chain, nb);
-}
-EXPORT_SYMBOL(unregister_die_notifier); /* used modular by kdb */
 
 static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
 {
diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c
index f534c29..ca0aa0c 100644
--- a/arch/i386/mm/fault.c
+++ b/arch/i386/mm/fault.c
@@ -21,13 +21,14 @@
 #include <linux/vt_kern.h>		/* For unblank_screen() */
 #include <linux/highmem.h>
 #include <linux/bootmem.h>		/* for max_low_pfn */
+#include <linux/vmalloc.h>
 #include <linux/module.h>
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
+#include <linux/kdebug.h>
 
 #include <asm/system.h>
 #include <asm/desc.h>
-#include <asm/kdebug.h>
 #include <asm/segment.h>
 
 extern void die(const char *,struct pt_regs *,long);
diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c
index 695f737..8e18520 100644
--- a/arch/i386/oprofile/nmi_int.c
+++ b/arch/i386/oprofile/nmi_int.c
@@ -14,10 +14,10 @@
 #include <linux/sysdev.h>
 #include <linux/slab.h>
 #include <linux/moduleparam.h>
+#include <linux/kdebug.h>
 #include <asm/nmi.h>
 #include <asm/msr.h>
 #include <asm/apic.h>
-#include <asm/kdebug.h>
  
 #include "op_counter.h"
 #include "op_x86_model.h"
diff --git a/arch/i386/oprofile/nmi_timer_int.c b/arch/i386/oprofile/nmi_timer_int.c
index abf0ba5..1418e36 100644
--- a/arch/i386/oprofile/nmi_timer_int.c
+++ b/arch/i386/oprofile/nmi_timer_int.c
@@ -12,12 +12,11 @@
 #include <linux/errno.h>
 #include <linux/oprofile.h>
 #include <linux/rcupdate.h>
-
+#include <linux/kdebug.h>
 
 #include <asm/nmi.h>
 #include <asm/apic.h>
 #include <asm/ptrace.h>
-#include <asm/kdebug.h>
  
 static int profile_timer_exceptions_notify(struct notifier_block *self,
 					   unsigned long val, void *data)