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[SCSI] core, classes, mpt2sas: have scsi_internal_device_unblock take new state

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This has scsi_internal_device_unblock/scsi_target_unblock take
the new state to set the devices as an argument instead of
always setting to running. The patch also converts users of these
functions.

This allows the FC and iSCSI class to transition devices from blocked
to transport-offline, so that when fast_io_fail/replacement_timeout
has fired we do not set the devices back to running. Instead, we
set them to SDEV_TRANSPORT_OFFLINE.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Mike Christie
2012-05-17 23:56:57 -05:00
committed by James Bottomley
parent 1b8d262061
commit 5d9fb5cc1b
7 changed files with 41 additions and 34 deletions
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6
drivers/scsi/scsi_transport_iscsi.c
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@@ -907,7 +907,7 @@ static void session_recovery_timedout(struct work_struct *work)
session->transport->session_recovery_timedout(session);
ISCSI_DBG_TRANS_SESSION(session, "Unblocking SCSI target\n");
scsi_target_unblock(&session->dev);
scsi_target_unblock(&session->dev, SDEV_TRANSPORT_OFFLINE);
ISCSI_DBG_TRANS_SESSION(session, "Completed unblocking SCSI target\n");
}
@@ -930,7 +930,7 @@ static void __iscsi_unblock_session(struct work_struct *work)
session->state = ISCSI_SESSION_LOGGED_IN;
spin_unlock_irqrestore(&session->lock, flags);
/* start IO */
scsi_target_unblock(&session->dev);
scsi_target_unblock(&session->dev, SDEV_RUNNING);
/*
* Only do kernel scanning if the driver is properly hooked into
* the async scanning code (drivers like iscsi_tcp do login and
@@ -1180,7 +1180,7 @@ void iscsi_remove_session(struct iscsi_cls_session *session)
session->state = ISCSI_SESSION_FREE;
spin_unlock_irqrestore(&session->lock, flags);
scsi_target_unblock(&session->dev);
scsi_target_unblock(&session->dev, SDEV_TRANSPORT_OFFLINE);
/* flush running scans then delete devices */
scsi_flush_work(shost);
__iscsi_unbind_session(&session->unbind_work);