On Sun, Mar 08, 2020 at 08:01:45PM +0800, qiwuchen55@xxxxxxxxx wrote: > if (alloc_harder && > - !list_empty(&area->free_list[MIGRATE_HIGHATOMIC])) > + !free_area_empty(area, MIGRATE_HIGHATOMIC)) I think these can now be one line? Also, I think free_area_empty() and a number of related functions can move from mmzone.h to mm/internal.h. This will benefit all of us since mmzone.h is included from mm.h and so is widely seen throughout the kernel.
