From: anton@samba•org
To: linuxppc-dev@ozlabs•org
Cc: paulus@samba•org
Subject: [patch 07/10] Page fault handler should not depend on CONFIG_KPROBES
Date: Tue, 20 Mar 2007 20:38:17 -0500 [thread overview]
Message-ID: <20070321013825.385423000@samba.org> (raw)
In-Reply-To: 20070321013810.404636000@samba.org
Like x86-64, change the page fault notifier code to not depend on
CONFIG_KPROBES and export the handlers.
Signed-off-by: Anton Blanchard <anton@samba•org>
---
Index: linux-2.6/arch/powerpc/mm/fault.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/fault.c 2007-03-11 12:34:34.000000000 -0500
+++ linux-2.6/arch/powerpc/mm/fault.c 2007-03-11 12:40:52.000000000 -0500
@@ -39,7 +39,6 @@
#include <asm/kdebug.h>
#include <asm/siginfo.h>
-#ifdef CONFIG_KPROBES
ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
/* Hook to register for page fault notifications */
@@ -47,11 +46,13 @@
{
return atomic_notifier_chain_register(¬ify_page_fault_chain, nb);
}
+EXPORT_SYMBOL_GPL(register_page_fault_notifier);
int unregister_page_fault_notifier(struct notifier_block *nb)
{
return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb);
}
+EXPORT_SYMBOL_GPL(unregister_page_fault_notifier);
static inline int notify_page_fault(enum die_val val, const char *str,
struct pt_regs *regs, long err, int trap, int sig)
@@ -65,13 +66,6 @@
};
return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args);
}
-#else
-static inline int notify_page_fault(enum die_val val, const char *str,
- struct pt_regs *regs, long err, int trap, int sig)
-{
- return NOTIFY_DONE;
-}
-#endif
/*
* Check whether the instruction at regs->nip is a store using
Index: linux-2.6/include/asm-powerpc/kdebug.h
===================================================================
--- linux-2.6.orig/include/asm-powerpc/kdebug.h 2007-03-11 12:42:23.000000000 -0500
+++ linux-2.6/include/asm-powerpc/kdebug.h 2007-03-11 12:42:49.000000000 -0500
@@ -33,7 +33,8 @@
DIE_MACHINE_CHECK,
};
-static inline int notify_die(enum die_val val,char *str,struct pt_regs *regs,long err,int trap, int sig)
+static inline int notify_die(enum die_val val, const char *str,
+ struct pt_regs *regs, long err, int trap, int sig)
{
struct die_args args = { .regs=regs, .str=str, .err=err, .trapnr=trap,.signr=sig };
return atomic_notifier_call_chain(&powerpc_die_chain, val, &args);
--
next prev parent reply other threads:[~2007-03-21 1:38 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-21 1:38 [patch 00/10] Oops path and debugger hooks rework anton
2007-03-21 1:38 ` [patch 01/10] Add missing oops_enter/oops_exit anton
2007-03-21 1:38 ` [patch 02/10] Clean up pmac_backlight_unblank in oops path anton
2007-03-21 1:38 ` [patch 03/10] Handle recursive oopses anton
2007-03-21 1:38 ` [patch 04/10] Fix backwards ? : when printing machine type anton
2007-03-21 1:38 ` [patch 05/10] Use KERN_EMERG everywhere in oops printout anton
2007-03-21 2:23 ` Stephen Rothwell
2007-03-23 11:00 ` Paul Mackerras
2007-03-21 1:38 ` [patch 06/10] Add notify die hooks and remove some redundant debugger hooks anton
2007-03-21 16:14 ` Christoph Hellwig
2007-03-23 11:14 ` Paul Mackerras
2007-03-23 11:29 ` Christoph Hellwig
2007-03-23 12:04 ` Ananth N Mavinakayanahalli
2007-03-23 14:09 ` Anton Blanchard
2007-03-24 3:17 ` Paul Mackerras
2007-04-09 10:21 ` Paul Mackerras
2007-04-10 4:49 ` Ananth N Mavinakayanahalli
2007-03-21 1:38 ` anton [this message]
2007-03-21 16:13 ` [patch 07/10] Page fault handler should not depend on CONFIG_KPROBES Christoph Hellwig
2007-03-23 14:19 ` Anton Blanchard
2007-03-21 1:38 ` [patch 08/10] Use notifier hooks for xmon anton
2007-03-21 1:38 ` [patch 09/10] Use lowercase for hex printouts in oops messages anton
2007-03-21 2:14 ` Olof Johansson
2007-03-21 7:17 ` Geert Uytterhoeven
2007-03-21 16:44 ` Segher Boessenkool
2007-03-21 1:38 ` [patch 10/10] Make sure we only enable xmon once anton
2007-03-21 2:04 ` Anton Blanchard
2007-03-21 2:11 ` Olof Johansson
2007-03-21 2:05 ` Anton Blanchard
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