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authorNicholas Bellinger <nab@linux-iscsi.org>2014-02-03 12:54:39 -0800
committerNicholas Bellinger <nab@linux-iscsi.org>2014-03-04 17:54:09 -0800
commitdefd884845297fd5690594bfe89656b01f16d87e (patch)
treeb8ae8a15462e2ccc2e0a6c1c1f7ace6507a47aa5 /drivers/target
parent5159d763f60af693a3fcec45dce2021f66e528a4 (diff)
downloadlinux-defd884845297fd5690594bfe89656b01f16d87e.tar.bz2
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.c4
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);
/*