Add SECTION_ALIGN_UP() and SECTION_ALIGN_DOWN() macro which aligns given pfn to upper section and lower section boundary accordingly. Signed-off-by: Daniel Kiper <dkiper@xxxxxxxxxxxx> --- include/linux/mmzone.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 02ecb01..d342820 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -931,6 +931,9 @@ static inline unsigned long early_pfn_to_nid(unsigned long pfn) #define pfn_to_section_nr(pfn) ((pfn) >> PFN_SECTION_SHIFT) #define section_nr_to_pfn(sec) ((sec) << PFN_SECTION_SHIFT) +#define SECTION_ALIGN_UP(pfn) (((pfn) + PAGES_PER_SECTION - 1) & PAGE_SECTION_MASK) +#define SECTION_ALIGN_DOWN(pfn) ((pfn) & PAGE_SECTION_MASK) + #ifdef CONFIG_SPARSEMEM /* -- 1.5.6.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>