linux-kernel - Re: [PATCH] add additional symbols to /sys/kernel/vmcoreinfo data for ppc(64)

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Date:	Sun, 19 Oct 2008 20:28:05 -0400
From:	Neil Horman <nhorman@...driver.com>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	linux-kernel@...r.kernel.org, kexec@...ts.infradead.org,
	hbabu@...ibm.com
Subject: Re: [PATCH] add additional symbols to /sys/kernel/vmcoreinfo data
	for ppc(64)

 Hey Vivek, as promised, a corrected patch
	
	The makdumpdile dump filtering program, in some modes of operation needs
the node_data and/or contig_page_data symbols to function properly.  These
symbols are missing from the powerpc kernel.  This patch adds those symbols in
properly.  Tested successfully by myself and the reporter.

Regards
Neil

Signed-off-by: Neil Horman <nhorman@...driver.com>


 machine_kexec.c |    8 ++++++++
 1 file changed, 8 insertions(+)


diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index aab7688..5d51e75 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -44,6 +44,14 @@ void machine_kexec_cleanup(struct kimage *image)
 		ppc_md.machine_kexec_cleanup(image);
 }
 
+void arch_crash_save_vmcoreinfo(void)
+{
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+	VMCOREINFO_SYMBOL(node_data);
+	VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
+#endif
+}
+
 /*
  * Do not allocate memory (or fail in any way) in machine_kexec().
  * We are past the point of no return, committed to rebooting now.
--
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