diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index d6ce2182e672..035c2c762537 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -3719,7 +3719,9 @@ restart: */ iscsit_thread_check_cpumask(conn, current, 1); - schedule_timeout_interruptible(MAX_SCHEDULE_TIMEOUT); + wait_event_interruptible(conn->queues_wq, + !iscsit_conn_all_queues_empty(conn) || + ts->status == ISCSI_THREAD_SET_RESET); if ((ts->status == ISCSI_THREAD_SET_RESET) || signal_pending(current)) diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index 2ba9f9b9435c..21048dbf7d13 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -486,6 +486,7 @@ struct iscsi_tmr_req { }; struct iscsi_conn { + wait_queue_head_t queues_wq; /* Authentication Successful for this connection */ u8 auth_complete; /* State connection is currently in */ diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index cdc8a10939c3..f8dbec05d5e5 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -41,6 +41,7 @@ static int iscsi_login_init_conn(struct iscsi_conn *conn) { + init_waitqueue_head(&conn->queues_wq); INIT_LIST_HEAD(&conn->conn_list); INIT_LIST_HEAD(&conn->conn_cmd_list); INIT_LIST_HEAD(&conn->immed_queue_list); diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index afd98ccd40ae..1a91195ab619 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -488,7 +488,7 @@ void iscsit_add_cmd_to_immediate_queue( atomic_set(&conn->check_immediate_queue, 1); spin_unlock_bh(&conn->immed_queue_lock); - wake_up_process(conn->thread_set->tx_thread); + wake_up(&conn->queues_wq); } struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsi_conn *conn) @@ -562,7 +562,7 @@ void iscsit_add_cmd_to_response_queue( atomic_inc(&cmd->response_queue_count); spin_unlock_bh(&conn->response_queue_lock); - wake_up_process(conn->thread_set->tx_thread); + wake_up(&conn->queues_wq); } struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *conn) @@ -616,6 +616,24 @@ static void iscsit_remove_cmd_from_response_queue( } } +bool iscsit_conn_all_queues_empty(struct iscsi_conn *conn) +{ + bool empty; + + spin_lock_bh(&conn->immed_queue_lock); + empty = list_empty(&conn->immed_queue_list); + spin_unlock_bh(&conn->immed_queue_lock); + + if (!empty) + return empty; + + spin_lock_bh(&conn->response_queue_lock); + empty = list_empty(&conn->response_queue_list); + spin_unlock_bh(&conn->response_queue_lock); + + return empty; +} + void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *conn) { struct iscsi_queue_req *qr, *qr_tmp; diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h index 44054bd35437..894d0f837924 100644 --- a/drivers/target/iscsi/iscsi_target_util.h +++ b/drivers/target/iscsi/iscsi_target_util.h @@ -25,6 +25,7 @@ extern struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsi_ extern void iscsit_add_cmd_to_response_queue(struct iscsi_cmd *, struct iscsi_conn *, u8); extern struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *); extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_conn *); +extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *); extern void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *); extern void iscsit_release_cmd(struct iscsi_cmd *); extern void iscsit_free_cmd(struct iscsi_cmd *);