> because we do not want to call out pcp free lists). I strongly suspect > that only the memory hotplug really cares for this hard guanrantee. > alloc_contig_range simply goes with EBUSY. > You are right, the strong requirement is for hotplug case only, but if PCP disable/enable functionality is properly implemented, and we are still draining the lists in alloc_contig_range case, I do not see a reason not to disable/enable PCP during CMA as well just to reduce number of spurious errors. Thanks, Pasha
