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-rw-r--r--include/linux/crash_dump.h13
-rw-r--r--include/linux/highmem.h1
2 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
new file mode 100644
index 0000000..7d983b8
--- /dev/null
+++ b/include/linux/crash_dump.h
@@ -0,0 +1,13 @@
+#ifndef LINUX_CRASH_DUMP_H
+#define LINUX_CRASH_DUMP_H
+
+#ifdef CONFIG_CRASH_DUMP
+#include <linux/kexec.h>
+#include <linux/smp_lock.h>
+#include <linux/device.h>
+#include <linux/proc_fs.h>
+
+extern ssize_t copy_oldmem_page(unsigned long, char *, size_t,
+ unsigned long, int);
+#endif /* CONFIG_CRASH_DUMP */
+#endif /* LINUX_CRASHDUMP_H */
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 2a7e6c6..6bece92 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -28,6 +28,7 @@ static inline void *kmap(struct page *page)
#define kmap_atomic(page, idx) page_address(page)
#define kunmap_atomic(addr, idx) do { } while (0)
+#define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn))
#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#endif /* CONFIG_HIGHMEM */