iser-target: Put the reference on commands waiting for unsol data

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The iscsi target core teardown sequence calls wait_conn for
all active commands to finish gracefully by:
- move the queue-pair to error state
- drain all the completions
- wait for the core to finish handling all session commands

However, when tearing down a session while there are sequenced
commands that are still waiting for unsolicited data outs, we can
block forever as these are missing an extra reference put.

We basically need the equivalent of iscsit_free_queue_reqs_for_conn()
which is called after wait_conn has returned. Address this by an
explicit walk on conn_cmd_list and put the extra reference.

Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

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Jenny Derzhavetz 2015-09-06 14:52:21 +03:00 • committed by Nicholas Bellinger

parent a4c15cd957

commit 3e03c4b01d

1 changed files with 37 additions and 1 deletions

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drivers/infiniband/ulp/isert/ib_isert.c

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