Patch "iser-target: Add missing target_put_sess_cmd for ImmedateData failure" has been added to the 3.10-stable tree

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This is a note to let you know that I've just added the patch titled

    iser-target: Add missing target_put_sess_cmd for ImmedateData failure

to the 3.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     iser-target-add-missing-target_put_sess_cmd-for-immedatedata-failure.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 6cc44a6fb46e1ecc1c28125aa8fa34d317aa9ea7 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Date: Fri, 23 May 2014 00:48:35 -0700
Subject: iser-target: Add missing target_put_sess_cmd for ImmedateData failure

From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>

commit 6cc44a6fb46e1ecc1c28125aa8fa34d317aa9ea7 upstream.

This patch addresses a bug where an early exception for SCSI WRITE
with ImmediateData=Yes was missing the target_put_sess_cmd() call
to drop the extra se_cmd->cmd_kref reference obtained during the
normal iscsit_setup_scsi_cmd() codepath execution.

This bug was manifesting itself during session shutdown within
isert_cq_rx_comp_err() where target_wait_for_sess_cmds() would
end up waiting indefinately for the last se_cmd->cmd_kref put to
occur for the failed SCSI WRITE + ImmediateData descriptors.

This fix follows what traditional iscsi-target code already does
for the same failure case within iscsit_get_immediate_data().

Reported-by: Sagi Grimberg <sagig@xxxxxxxxxxxxxxxxxx>
Cc: Sagi Grimberg <sagig@xxxxxxxxxxxxxxxxxx>
Cc: Or Gerlitz <ogerlitz@xxxxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/infiniband/ulp/isert/ib_isert.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -965,6 +965,8 @@ sequence_cmd:
 
 	if (!rc && dump_payload == false && unsol_data)
 		iscsit_set_unsoliticed_dataout(cmd);
+	else if (dump_payload && imm_data)
+		target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
 
 	return 0;
 }


Patches currently in stable-queue which might be from nab@xxxxxxxxxxxxxxx are

queue-3.10/iser-target-add-missing-target_put_sess_cmd-for-immedatedata-failure.patch
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