tree 73ddbe0024d54bad543c90144576148b70922eea
parent 76c75b258f1fe6abac6af2356989ad4d6518886e
author Bart Van Assche <bvanassche@acm.org> 1290801009 -0500
committer David Dillow <dillowda@ornl.gov> 1294692290 -0500

IB/srp: reduce lock coverage of command completion

We only need the lock to cover list and credit manipulations, so push
those into srp_remove_req() and update the call chains.

We reorder the request removal and command completion in
srp_process_rsp() to avoid the SCSI mid-layer sending another command
before we've released our request and added any credits returned by the
target. This prevents us from returning HOST_BUSY unneccesarily.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
[ broken out, small cleanups, and modified to avoid potential extraneous
  HOST_BUSY returns by David Dillow ]
Signed-off-by: David Dillow <dillowda@ornl.gov>