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authorNicholas Bellinger <nab@linux-iscsi.org>2014-02-03 12:54:39 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-03-23 21:38:21 -0700
commitd8bd97a03ce979b216df151e3b991023e6b72917 (patch)
tree10f84a53d540b963d7a260915e2ee492523959e0 /drivers/target
parentaf737f6739b80e4a9fc471fa0595740caf720714 (diff)
downloadlinux-linaro-stable-d8bd97a03ce979b216df151e3b991023e6b72917.tar.gz
iscsi/iser-target: Fix isert_conn->state hung shutdown issues
commit defd884845297fd5690594bfe89656b01f16d87e upstream. 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> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 59a5319ee50c..5232ac7b0745 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4144,6 +4144,10 @@ 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);
/*