On Thu, Jul 29, 2021 at 11:42:26AM +0800, Ming Lei wrote: > When merging one bio to request, if they are discard IO and the queue > supports multi-range discard, we need to return ELEVATOR_DISCARD_MERGE > because both block core and related drivers(nvme, virtio-blk) doesn't > handle mixed discard io merge(traditional IO merge together with > discard merge) well. > > Fix the issue by returning ELEVATOR_DISCARD_MERGE in this situation, > so both blk-mq and drivers just need to handle multi-range discard. > > Reported-by: Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx> > Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx> Hello Jens and Guys, Ping... Thanks, Ming
