On Tue, Nov 06, 2018 at 10:35:03PM +0100, Mikulas Patocka wrote: > Device mapper was converted to percpu inflight counters. In order to > display the correct values in the "inflight" sysfs file, we need a custom > callback that sums the percpu counters. The attribute that calls this is per-partition, while your method is per-queue, so there is some impedence mismatch here. Is there any way you could look into just making the generic code use percpu counters? Also please cc linux-block on patches that touch the generic block code. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel