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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-02-03 12:54:39 -0800 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-03-04 17:54:09 -0800 |
| commit | defd884845297fd5690594bfe89656b01f16d87e (patch) | |
| tree | b8ae8a15462e2ccc2e0a6c1c1f7ace6507a47aa5 /drivers/target | |
| parent | 5159d763f60af693a3fcec45dce2021f66e528a4 (diff) | |
| download | linux-exynos-defd884845297fd5690594bfe89656b01f16d87e.tar.gz linux-exynos-defd884845297fd5690594bfe89656b01f16d87e.tar.bz2 linux-exynos-defd884845297fd5690594bfe89656b01f16d87e.zip | |
iscsi/iser-target: Fix isert_conn->state hung shutdown issues
This patch addresses a couple of different hug shutdown issues
related to wait_event() + isert_conn->state. First, it changes
isert_conn->conn_wait + isert_conn->conn_wait_comp_err from
waitqueues to completions, and sets ISER_CONN_TERMINATING from
within isert_disconnect_work().
Second, it splits isert_free_conn() into isert_wait_conn() that
is called earlier in iscsit_close_connection() to ensure that
all outstanding commands have completed before continuing.
Finally, it breaks isert_cq_comp_err() into seperate TX / RX
related code, and adds logic in isert_cq_rx_comp_err() to wait
for outstanding commands to complete before setting ISER_CONN_DOWN
and calling complete(&isert_conn->conn_wait_comp_err).
Acked-by: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: <stable@vger.kernel.org> #3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/iscsi/iscsi_target.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index ece82b0d8ea3..b83ec378d04f 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4196,6 +4196,10 @@ int iscsit_close_connection( iscsit_stop_timers_for_cmds(conn); iscsit_stop_nopin_response_timer(conn); iscsit_stop_nopin_timer(conn); + + if (conn->conn_transport->iscsit_wait_conn) + conn->conn_transport->iscsit_wait_conn(conn); + iscsit_free_queue_reqs_for_conn(conn); /* |