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Subject[PATCH 24/35] x86: allow machine_crash_shutdown to be replaced
Date
From: Glauber Costa <gcosta@redhat.com>

This patch a llows machine_crash_shutdown to
be replaced, just like any of the other functions
in machine_ops

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
arch/x86/kernel/crash.c | 3 ++-
arch/x86/kernel/reboot.c | 11 ++++++++++-
include/asm-x86/reboot.h | 1 +
3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 9a5fa0a..d262306 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -25,6 +25,7 @@
#include <asm/hpet.h>
#include <linux/kdebug.h>
#include <asm/smp.h>
+#include <asm/reboot.h>

#ifdef CONFIG_X86_32
#include <mach_ipi.h>
@@ -121,7 +122,7 @@ static void nmi_shootdown_cpus(void)
}
#endif

-void machine_crash_shutdown(struct pt_regs *regs)
+void native_machine_crash_shutdown(struct pt_regs *regs)
{
/* This function is only called after the system
* has panicked or is otherwise in a critical state.
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 484c4a8..708d6f8 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -471,7 +471,10 @@ struct machine_ops machine_ops = {
.shutdown = native_machine_shutdown,
.emergency_restart = native_machine_emergency_restart,
.restart = native_machine_restart,
- .halt = native_machine_halt
+ .halt = native_machine_halt,
+#ifdef CONFIG_KEXEC
+ .crash_shutdown = native_machine_crash_shutdown,
+#endif
};

void machine_power_off(void)
@@ -499,3 +502,9 @@ void machine_halt(void)
machine_ops.halt();
}

+#ifdef CONFIG_KEXEC
+void machine_crash_shutdown(struct pt_regs *regs)
+{
+ machine_ops.crash_shutdown(regs);
+}
+#endif
diff --git a/include/asm-x86/reboot.h b/include/asm-x86/reboot.h
index e9e3ffc..ff9b546 100644
--- a/include/asm-x86/reboot.h
+++ b/include/asm-x86/reboot.h
@@ -16,5 +16,6 @@ struct machine_ops
extern struct machine_ops machine_ops;

void machine_real_restart(unsigned char *code, int length);
+void native_machine_crash_shutdown(struct pt_regs *regs);

#endif /* _ASM_REBOOT_H */
--
1.5.4.5


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