tree 8cd6d06b8cc4a1e1420b4d013f260188fc854f8a
parent 962b4b528ba87c8d837bb04794a1918c7de631cd
author Or Gerlitz <ogerlitz@voltaire.com> 1265635391 +0000
committer Roland Dreier <rolandd@cisco.com> 1267033274 -0800

IB/iser: Remove redundant locking from iser scsi command response flow

Currently the iSER receive completion flow takes the session lock
twice.  Optimize it to avoid the first one by letting
iser_task_rdma_finalize() be called only from the cleanup_task
callback invoked by iscsi_free_task, thus reducing the contention on
the session lock between the scsi command submission to the scsi
command completion flows.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Roland Dreier <rolandd@cisco.com>