Sreekanth, > In the unload path driver call sas_remove_host() API before releasing > the resources. This sas_remove_host() API waits for all the > outstanding IOs to be completed. So here, indirectly driver is waiting > for the outstanding IOs to be processed before releasing the HBA > resources. So only in the cases where HBA is inaccessible (e.g. HBA > unplug case), driver is flushing out the outstanding commands to avoid > SCSI error handling over head and can quilkey complete the driver > unload operation. None of this is clear from the commit description. Please resubmit patch with a new description clarifying why and when it is safe to drop outstanding commands. -- Martin K. Petersen Oracle Linux Engineering
