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[SCSI] iscsi class: modify handling of replacement timeout

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This patch modifies the replacement/recovery_timeout so it works
more like the fc fast io fail tmo.

If userspace tries to set the replacement/recovery_timeout to less than
zero, we will turn off the forced recovery cleanup.

If userspace sets the value to 0 then we will force the recovery
cleanup immediately.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Mike Christie 2009-11-11 16:34:34 -06:00 committed by James Bottomley
parent 3fe5ae8b4c
commit fdd46dcbe4
1 changed files with 5 additions and 4 deletions
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9
drivers/scsi/scsi_transport_iscsi.c
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@ -627,8 +627,10 @@ static void __iscsi_block_session(struct work_struct *work)
spin_unlock_irqrestore(&session->lock, flags);
scsi_target_block(&session->dev);
ISCSI_DBG_TRANS_SESSION(session, "Completed SCSI target blocking\n");
queue_delayed_work(iscsi_eh_timer_workq, &session->recovery_work,
session->recovery_tmo * HZ);
if (session->recovery_tmo >= 0)
queue_delayed_work(iscsi_eh_timer_workq,
&session->recovery_work,
session->recovery_tmo * HZ);
}
void iscsi_block_session(struct iscsi_cls_session *session)
@ -1348,8 +1350,7 @@ iscsi_set_param(struct iscsi_transport *transport, struct iscsi_uevent *ev)
switch (ev->u.set_param.param) {
case ISCSI_PARAM_SESS_RECOVERY_TMO:
sscanf(data, "%d", &value);
if (value != 0)
session->recovery_tmo = value;
session->recovery_tmo = value;
break;
default:
err = transport->set_param(conn, ev->u.set_param.param,