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.kenn...@broadcom.com>
Signed-off-by: James Smart <jsmart2...@gmail.com>
Reviewed-by: Hannes Reinecke <h...@suse.com>
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
h...@suse.de +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)
