From b2cb96494d83b894a43ba8b9023eead8ff50684b Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 3 Jul 2013 03:05:37 -0700 Subject: 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 Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target_erl0.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/target') diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c index 8f074e0b6099..3722f8dffa68 100644 --- a/drivers/target/iscsi/iscsi_target_erl0.c +++ b/drivers/target/iscsi/iscsi_target_erl0.c @@ -908,6 +908,7 @@ void iscsit_cause_connection_reinstatement(struct iscsi_conn *conn, int sleep) wait_for_completion(&conn->conn_wait_comp); complete(&conn->conn_post_wait_comp); } +EXPORT_SYMBOL(iscsit_cause_connection_reinstatement); void iscsit_fall_back_to_erl0(struct iscsi_session *sess) { -- cgit v1.2.2