[ACPI] merge 3549 4320 4485 4588 4980 5483 5651 acpica asus fops pnpacpi branches...

[linux-beck.git] / include / asm-ia64 / page.h

diff --git a/include/asm-ia64/page.h b/include/asm-ia64/page.h
index 9dd9da10527849add26749970dc31a963237854a..5e6362a786b72b2b5b9ce98a51db94d1b74f27d2 100644 (file)
--- a/include/asm-ia64/page.h
+++ b/include/asm-ia64/page.h
@@ -110,8 +110,9 @@ extern int ia64_pfn_valid (unsigned long pfn);
 # define pfn_to_page(pfn)      (mem_map + (pfn))
 #elif defined(CONFIG_DISCONTIGMEM)
 extern struct page *vmem_map;
+extern unsigned long min_low_pfn;
 extern unsigned long max_low_pfn;
-# define pfn_valid(pfn)                (((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))
+# define pfn_valid(pfn)                (((pfn) >= min_low_pfn) && ((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))
 # define page_to_pfn(page)     ((unsigned long) (page - vmem_map))
 # define pfn_to_page(pfn)      (vmem_map + (pfn))
 #endif