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From: Eduardo Habkost <ehabkost-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
Cc: Andrew Morton <akpm-3NddpPZAyC0@public.gmane.org>,
	Eduardo Habkost
	<ehabkost-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>,
	Haren Myneni <hbabu-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>,
	Simon Horman <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>,
	Avi Kivity <avi-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Andrey Borzenkov <arvidjaar-JGs/UdohzUI@public.gmane.org>,
	Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	"Eric W. Biederman"
	<ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
Subject: [PATCH 2/8] x86 kdump: Move crashing_cpu assignment to nmi_shootdown_cpus()
Date: Wed, 12 Nov 2008 11:34:38 -0200	[thread overview]
Message-ID: <1226496884-24628-3-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1226496884-24628-1-git-send-email-ehabkost-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

This variable will be moved to non-kdump-specific code.

Signed-off-by: Eduardo Habkost <ehabkost-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 arch/x86/kernel/crash.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 6047542..ed2f0f9 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -29,10 +29,11 @@
 
 #include <mach_ipi.h>
 
+#if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC)
+
 /* This keeps a track of which one is crashing cpu. */
 static int crashing_cpu;
 
-#if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC)
 static atomic_t waiting_for_crash_ipi;
 
 static void kdump_nmi_callback(int cpu, struct die_args *args)
@@ -100,6 +101,9 @@ static void nmi_shootdown_cpus(void)
 {
 	unsigned long msecs;
 
+	/* Make a note of crashing cpu. Will be used in NMI callback.*/
+	crashing_cpu = safe_smp_processor_id();
+
 	atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1);
 	/* Would it be better to replace the trap vector here? */
 	if (register_die_notifier(&crash_nmi_nb))
@@ -140,8 +144,6 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
 	/* The kernel is broken so disable interrupts */
 	local_irq_disable();
 
-	/* Make a note of crashing cpu. Will be used in NMI callback.*/
-	crashing_cpu = safe_smp_processor_id();
 	nmi_shootdown_cpus();
 	lapic_shutdown();
 #if defined(CONFIG_X86_IO_APIC)
-- 
1.5.5.GIT

  parent reply	other threads:[~2008-11-12 13:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-12 13:34 [PATCH 0/8] Make nmi_shootdown_cpus() usable by non-kdump code Eduardo Habkost
     [not found] ` <1226496884-24628-1-git-send-email-ehabkost-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2008-11-12 13:34   ` [PATCH 1/8] x86 kdump: Extract kdump-specific code from crash_nmi_callback() Eduardo Habkost
2008-11-12 13:34   ` Eduardo Habkost [this message]
2008-11-12 13:34   ` [PATCH 3/8] x86 kdump: Create kdump_nmi_shootdown_cpus() Eduardo Habkost
2008-11-12 13:34   ` [PATCH 4/8] x86 kdump: Make kdump_nmi_callback() a function ptr on crash_nmi_callback() Eduardo Habkost
2008-11-12 13:34   ` [PATCH 5/8] x86 kdump: Make nmi_shootdown_cpus() non-static Eduardo Habkost
2008-11-12 13:34   ` [PATCH 6/8] x86: Move nmi_shootdown_cpus() to reboot.c Eduardo Habkost
2008-11-12 13:34   ` [PATCH 7/8] x86: Make nmi_shootdown_cpus() available on !SMP and !X86_LOCAL_APIC Eduardo Habkost
2008-11-12 13:34   ` [PATCH 8/8] x86: Disable IRQs before doing anything on nmi_shootdown_cpus() Eduardo Habkost
2008-11-12 17:58   ` [PATCH 0/8] Make nmi_shootdown_cpus() usable by non-kdump code Ingo Molnar

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