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-rw-r--r--include/linux/bootmem.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 500f451ce0c..82bd8842d11 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -22,6 +22,10 @@ extern unsigned long min_low_pfn;
*/
extern unsigned long max_pfn;
+#ifdef CONFIG_CRASH_DUMP
+extern unsigned long saved_max_pfn;
+#endif
+
/*
* node_bootmem_map is a map pointer - the bits represent all physical
* memory pages (including holes) on the node.