On 1/28/19 8:14 PM, James Smart wrote:
A scsi host lock is taken on every io completion to check whether the abort handler is waiting on the io completion. This is an expensive lock to take on all completion when rarely in an abort condition. Replace scsi host lock with command-specific lock. Synchronize completion and abort paths by new cmd lock. Ensure all flag changing and nulling of context pointers taken under lock. When adding lock to task management abort, realized it was missing other synchronization locks. Added that synchronization to match normal paths. Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx> Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
