On Tue 20-11-18 15:18:41, David Hildenbrand wrote: [...] > (we could also check for pending signals inside that function if really > required)
do_migrate_pages is not the proper layer to check signals. Because the loop only isolates pages and that is not expensive. The most expensive part is deeper down in the migration core. We wait for page lock or writeback and that can take a long. None of that is killable wait which is a larger surgery but something that we should consider should there be any need to address this. > Reviewed-by: David Hildenbrand <[email protected]> Thanks! -- Michal Hocko SUSE Labs
