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/ia64/include/asm/page.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/ia64/include') diff --git a/arch/ia64/include/asm/page.h b/arch/ia64/include/asm/page.h index ec48bb9f95e1..e8c486ef0d76 100644 --- a/arch/ia64/include/asm/page.h +++ b/arch/ia64/include/asm/page.h @@ -105,6 +105,7 @@ extern struct page *vmem_map; #ifdef CONFIG_DISCONTIGMEM # define page_to_pfn(page) ((unsigned long) (page - vmem_map)) # define pfn_to_page(pfn) (vmem_map + (pfn)) +# define __pfn_to_phys(pfn) PFN_PHYS(pfn) #else # include #endif -- cgit v1.2.3