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>

1 files changed, 2 insertions, 23 deletions

diff --git a/include/asm-avr32/kdebug.h b/include/asm-avr32/kdebug.h
index f583b643ffb2..de419278fc39 100644
--- a/include/asm-avr32/kdebug.h
+++ b/include/asm-avr32/kdebug.h
@@ -3,19 +3,6 @@
 
 #include <linux/notifier.h>
 
-struct pt_regs;
-
-struct die_args {
-        struct pt_regs *regs;
-        int trapnr;
-};
-
-int register_die_notifier(struct notifier_block *nb);
-int unregister_die_notifier(struct notifier_block *nb);
-int register_page_fault_notifier(struct notifier_block *nb);
-int unregister_page_fault_notifier(struct notifier_block *nb);
-extern struct atomic_notifier_head avr32_die_chain;
-
 /* Grossly misnamed. */
 enum die_val {
         DIE_FAULT,
@@ -24,15 +11,7 @@ enum die_val {
         DIE_PAGE_FAULT,
 };
 
-static inline int notify_die(enum die_val val, struct pt_regs *regs,
-                             int trap, int sig)
-{
-        struct die_args args = {
-                .regs = regs,
-                .trapnr = trap,
-        };
-
-        return atomic_notifier_call_chain(&avr32_die_chain, val, &args);
-}
+int register_page_fault_notifier(struct notifier_block *nb);
+int unregister_page_fault_notifier(struct notifier_block *nb);
 
 #endif /* __ASM_AVR32_KDEBUG_H */