diff options
| -rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 68 |
1 files changed, 42 insertions, 26 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index a67fed10598a..f436e033adaf 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -2384,6 +2384,7 @@ fc_rport_final_delete(struct work_struct *work) struct Scsi_Host *shost = rport_to_shost(rport); struct fc_internal *i = to_fc_internal(shost->transportt); unsigned long flags; + int do_callback = 0; /* * if a scan is pending, flush the SCSI Host work_q so that @@ -2422,8 +2423,15 @@ fc_rport_final_delete(struct work_struct *work) * Avoid this call if we already called it when we preserved the * rport for the binding. */ + spin_lock_irqsave(shost->host_lock, flags); if (!(rport->flags & FC_RPORT_DEVLOSS_CALLBK_DONE) && - (i->f->dev_loss_tmo_callbk)) + (i->f->dev_loss_tmo_callbk)) { + rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; + do_callback = 1; + } + spin_unlock_irqrestore(shost->host_lock, flags); + + if (do_callback) i->f->dev_loss_tmo_callbk(rport); fc_bsg_remove(rport->rqst_q); @@ -2970,6 +2978,7 @@ fc_timeout_deleted_rport(struct work_struct *work) struct fc_internal *i = to_fc_internal(shost->transportt); struct fc_host_attrs *fc_host = shost_to_fc_host(shost); unsigned long flags; + int do_callback = 0; spin_lock_irqsave(shost->host_lock, flags); @@ -3035,7 +3044,6 @@ fc_timeout_deleted_rport(struct work_struct *work) rport->roles = FC_PORT_ROLE_UNKNOWN; rport->port_state = FC_PORTSTATE_NOTPRESENT; rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; - rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; /* * Pre-emptively kill I/O rather than waiting for the work queue @@ -3045,32 +3053,40 @@ fc_timeout_deleted_rport(struct work_struct *work) spin_unlock_irqrestore(shost->host_lock, flags); fc_terminate_rport_io(rport); - BUG_ON(rport->port_state != FC_PORTSTATE_NOTPRESENT); + spin_lock_irqsave(shost->host_lock, flags); - /* remove the identifiers that aren't used in the consisting binding */ - switch (fc_host->tgtid_bind_type) { - case FC_TGTID_BIND_BY_WWPN: - rport->node_name = -1; - rport->port_id = -1; - break; - case FC_TGTID_BIND_BY_WWNN: - rport->port_name = -1; - rport->port_id = -1; - break; - case FC_TGTID_BIND_BY_ID: - rport->node_name = -1; - rport->port_name = -1; - break; - case FC_TGTID_BIND_NONE: /* to keep compiler happy */ - break; + if (rport->port_state == FC_PORTSTATE_NOTPRESENT) { /* still missing */ + + /* remove the identifiers that aren't used in the consisting binding */ + switch (fc_host->tgtid_bind_type) { + case FC_TGTID_BIND_BY_WWPN: + rport->node_name = -1; + rport->port_id = -1; + break; + case FC_TGTID_BIND_BY_WWNN: + rport->port_name = -1; + rport->port_id = -1; + break; + case FC_TGTID_BIND_BY_ID: + rport->node_name = -1; + rport->port_name = -1; + break; + case FC_TGTID_BIND_NONE: /* to keep compiler happy */ + break; + } + + /* + * As this only occurs if the remote port (scsi target) + * went away and didn't come back - we'll remove + * all attached scsi devices. + */ + rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; + fc_queue_work(shost, &rport->stgt_delete_work); + + do_callback = 1; } - /* - * As this only occurs if the remote port (scsi target) - * went away and didn't come back - we'll remove - * all attached scsi devices. - */ - fc_queue_work(shost, &rport->stgt_delete_work); + spin_unlock_irqrestore(shost->host_lock, flags); /* * Notify the driver that the rport is now dead. The LLDD will @@ -3078,7 +3094,7 @@ fc_timeout_deleted_rport(struct work_struct *work) * * Note: we set the CALLBK_DONE flag above to correspond */ - if (i->f->dev_loss_tmo_callbk) + if (do_callback && i->f->dev_loss_tmo_callbk) i->f->dev_loss_tmo_callbk(rport); } |