Expose the function to get the max pfn, so it can be used in the virtio-balloon device driver.
Signed-off-by: Liang Li <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Michael S. Tsirkin <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Cornelia Huck <[email protected]> Cc: Amit Shah <[email protected]> --- mm/page_alloc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8b3e134..7da61ad 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4517,6 +4517,12 @@ void show_free_areas(unsigned int filter) show_swap_cache_info(); } +unsigned long get_max_pfn(void) +{ + return max_pfn; +} +EXPORT_SYMBOL(get_max_pfn); + static void zoneref_set_zone(struct zone *zone, struct zoneref *zoneref) { zoneref->zone = zone; -- 1.9.1
