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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-07-03 03:05:37 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-07-07 18:35:56 -0700 |
| commit | b2cb96494d83b894a43ba8b9023eead8ff50684b (patch) | |
| tree | b16b85fe4b65448fb8d03c004d8a7d83c988c412 /include/target | |
| parent | 186a9647019587b3784694894c4d136fd00cfd7b (diff) | |
| download | linux-b2cb96494d83b894a43ba8b9023eead8ff50684b.tar.bz2 | |
iser-target: Fix session reset bug with RDMA_CM_EVENT_DISCONNECTED
This patch addresses a bug where RDMA_CM_EVENT_DISCONNECTED may occur
before the connection shutdown has been completed by rx/tx threads,
that causes isert_free_conn() to wait indefinately on ->conn_wait.
This patch allows isert_disconnect_work code to invoke rdma_disconnect
when isert_disconnect_work() process context is started by client
session reset before isert_free_conn() code has been reached.
It also adds isert_conn->conn_mutex protection for ->state within
isert_disconnect_work(), isert_cq_comp_err() and isert_free_conn()
code, along with isert_check_state() for wait_event usage.
(v2: Add explicit iscsit_cause_connection_reinstatement call
during isert_disconnect_work() to force conn reset)
Cc: stable@vger.kernel.org # 3.10+
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target')
| -rw-r--r-- | include/target/iscsi/iscsi_transport.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h index ce4070d8f156..e5d09d242ba3 100644 --- a/include/target/iscsi/iscsi_transport.h +++ b/include/target/iscsi/iscsi_transport.h @@ -73,6 +73,10 @@ extern int iscsit_logout_post_handler(struct iscsi_cmd *, struct iscsi_conn *); */ extern void iscsit_increment_maxcmdsn(struct iscsi_cmd *, struct iscsi_session *); /* + * From iscsi_target_erl0.c + */ +extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int); +/* * From iscsi_target_erl1.c */ extern void iscsit_stop_dataout_timer(struct iscsi_cmd *); |