-#if defined(__linux__)
-#include <linux/lustre_debug.h>
-#elif defined(__APPLE__)
-#include <darwin/lustre_debug.h>
-#elif defined(__WINNT__)
-#include <winnt/lustre_debug.h>
-#else
-#error Unsupported operating system.
-#endif
+#define LL_CDEBUG_PAGE(mask, page, fmt, arg...) \
+ CDEBUG(mask, "page %p map %p index %lu flags %lx count %u priv %0lx: " \
+ fmt, page, page->mapping, page->index, (long)page->flags, \
+ page_count(page), page_private(page), ## arg)