Symbol: __zone_watermark_unusable_free
mm/page_alloc.c
3610
free_pages -= __zone_watermark_unusable_free(z, order, alloc_flags);
mm/page_alloc.c
3704
reserved = __zone_watermark_unusable_free(z, 0, alloc_flags);
mm/page_alloc.c
7707
__zone_watermark_unusable_free(zone, order, 0) -