From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Mike Christie <michael.christie@oracle.com>,
Lee Duncan <lduncan@suse.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Sasha Levin <sashal@kernel.org>,
cleech@redhat.com, jejb@linux.ibm.com,
open-iscsi@googlegroups.com, linux-scsi@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 17/28] scsi: iscsi: Unblock session then wake up error handler
Date: Thu, 25 Nov 2021 21:33:32 -0500 [thread overview]
Message-ID: <20211126023343.442045-17-sashal@kernel.org> (raw)
In-Reply-To: <20211126023343.442045-1-sashal@kernel.org>
From: Mike Christie <michael.christie@oracle.com>
[ Upstream commit a0c2f8b6709a9a4af175497ca65f93804f57b248 ]
We can race where iscsi_session_recovery_timedout() has woken up the error
handler thread and it's now setting the devices to offline, and
session_recovery_timedout()'s call to scsi_target_unblock() is also trying
to set the device's state to transport-offline. We can then get a mix of
states.
For the case where we can't relogin we want the devices to be in
transport-offline so when we have repaired the connection
__iscsi_unblock_session() can set the state back to running.
Set the device state then call into libiscsi to wake up the error handler.
Link: https://lore.kernel.org/r/20211105221048.6541-2-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/scsi_transport_iscsi.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 3f7fa8de36427..a5759d0e388a8 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1909,12 +1909,12 @@ static void session_recovery_timedout(struct work_struct *work)
}
spin_unlock_irqrestore(&session->lock, flags);
- if (session->transport->session_recovery_timedout)
- session->transport->session_recovery_timedout(session);
-
ISCSI_DBG_TRANS_SESSION(session, "Unblocking SCSI target\n");
scsi_target_unblock(&session->dev, SDEV_TRANSPORT_OFFLINE);
ISCSI_DBG_TRANS_SESSION(session, "Completed unblocking SCSI target\n");
+
+ if (session->transport->session_recovery_timedout)
+ session->transport->session_recovery_timedout(session);
}
static void __iscsi_unblock_session(struct work_struct *work)
--
2.33.0
parent reply other threads:[~2021-11-26 2:39 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20211126023343.442045-1-sashal@kernel.org>]
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