diff options
| author | James Smart | 2008-12-05 16:29:59 -0600 |
|---|---|---|
| committer | James Bottomley | 2008-12-29 11:24:33 -0600 |
| commit | f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4 (patch) | |
| tree | dff13a13fdfac127542803b7713ea7ebf1196e0f /drivers/scsi | |
| parent | 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8 (diff) | |
[SCSI] fc transport: pre-emptively terminate i/o upon dev_loss_tmo timeout
Pre-emptively terminate i/o on the rport if dev_loss_tmo has fired.
The desire is to terminate everything, so that the i/o is cleaned up
prior to the sdev's being unblocked, thus any outstanding timeouts/aborts
are avoided.
Also, we do this early enough such that the rport's port_id field is
still valid. FCOE libFC code needs this info to find the i/o's to
terminate.
Signed-off-by: James Smart <james.smart@emulex.com>
[michaelc@cs.wisc.edu: remove extra scsi_target_unblock call]
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 1e71abf0607a..062304de4854 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -3012,6 +3012,16 @@ fc_timeout_deleted_rport(struct work_struct *work) rport->port_state = FC_PORTSTATE_NOTPRESENT; rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; + /* + * Pre-emptively kill I/O rather than waiting for the work queue + * item to teardown the starget. (FCOE libFC folks prefer this + * and to have the rport_port_id still set when it's done). + */ + spin_unlock_irqrestore(shost->host_lock, flags); + fc_terminate_rport_io(rport); + + BUG_ON(rport->port_state != FC_PORTSTATE_NOTPRESENT); + /* remove the identifiers that aren't used in the consisting binding */ switch (fc_host->tgtid_bind_type) { case FC_TGTID_BIND_BY_WWPN: @@ -3035,9 +3045,6 @@ fc_timeout_deleted_rport(struct work_struct *work) * went away and didn't come back - we'll remove * all attached scsi devices. */ - spin_unlock_irqrestore(shost->host_lock, flags); - - scsi_target_unblock(&rport->dev); fc_queue_work(shost, &rport->stgt_delete_work); } |