powerpc: Add vmcoreinfo symbols to allow makdumpfile to filter core files properly

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
 machine_kexec.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index 6ff15f03dcc402eee7bc9c88518cc6ee83d64846..47905c0928619e65139cd946822d8cb6ded802d7 100644 (file)
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -45,6 +45,18 @@ 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
+#ifndef CONFIG_NEED_MULTIPLE_NODES
+       VMCOREINFO_SYMBOL(contig_page_data);
+#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.