From d2c0f041e1bb1260629ecea2161adb9778945aa3 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 15 Jan 2016 16:56:26 -0800 Subject: libnvdimm, pfn, pmem: allocate memmap array in persistent memory Use the new vmem_altmap capability to enable the pmem driver to arrange for a struct page memmap to be established in persistent memory. [linux@roeck-us.net: mn10300: declare __pfn_to_phys() to fix build error] Signed-off-by: Dan Williams Cc: Christoph Hellwig Cc: Dave Chinner Cc: Ross Zwisler Signed-off-by: Guenter Roeck Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/mn10300/include/asm/page.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/mn10300') diff --git a/arch/mn10300/include/asm/page.h b/arch/mn10300/include/asm/page.h index 8288e124165b..3810a6f740fd 100644 --- a/arch/mn10300/include/asm/page.h +++ b/arch/mn10300/include/asm/page.h @@ -107,6 +107,7 @@ static inline int get_order(unsigned long size) #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) #define pfn_to_page(pfn) (mem_map + ((pfn) - __pfn_disp)) #define page_to_pfn(page) ((unsigned long)((page) - mem_map) + __pfn_disp) +#define __pfn_to_phys(pfn) PFN_PHYS(pfn) #define pfn_valid(pfn) \ ({ \ -- cgit