On Wed, Apr 24, 2019 at 10:20:46AM -0700, Sagi Grimberg wrote: > > > per-queue bioset is used originally for avoiding deadlock, are you > > sure the static bioset is safe? > > Can you explain this? I didn't find any indication of that in the change > log history... > > Originally introduced by Kent: bio split can be run from stacking drivers, for example, MD over NVMe, if the global reserved mempool is consumed by MD bio splitting, then no any progress can be made when splitting on bio submitted to NVMe. Kent may have more details... Thanks, Ming
