diff options
Diffstat (limited to 'drivers/target/target_core_tmr.c')
-rw-r--r-- | drivers/target/target_core_tmr.c | 49 |
1 files changed, 28 insertions, 21 deletions
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index 71950355074e..ad0061e09d4c 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -171,11 +171,15 @@ void core_tmr_abort_task( spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); - cancel_work_sync(&se_cmd->work); - transport_wait_for_tasks(se_cmd); + /* + * Ensure that this ABORT request is visible to the LU RESET + * code. + */ + if (!tmr->tmr_dev) + WARN_ON_ONCE(transport_lookup_tmr_lun(tmr->task_cmd, + se_cmd->orig_fe_lun) < 0); - if (!transport_cmd_finish_abort(se_cmd)) - target_put_sess_cmd(se_cmd); + target_put_cmd_and_wait(se_cmd); printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for" " ref_tag: %llu\n", ref_tag); @@ -269,14 +273,28 @@ static void core_tmr_drain_tmr_list( (preempt_and_abort_list) ? "Preempt" : "", tmr_p, tmr_p->function, tmr_p->response, cmd->t_state); - cancel_work_sync(&cmd->work); - transport_wait_for_tasks(cmd); - - if (!transport_cmd_finish_abort(cmd)) - target_put_sess_cmd(cmd); + target_put_cmd_and_wait(cmd); } } +/** + * core_tmr_drain_state_list() - abort SCSI commands associated with a device + * + * @dev: Device for which to abort outstanding SCSI commands. + * @prout_cmd: Pointer to the SCSI PREEMPT AND ABORT if this function is called + * to realize the PREEMPT AND ABORT functionality. + * @tmr_sess: Session through which the LUN RESET has been received. + * @tas: Task Aborted Status (TAS) bit from the SCSI control mode page. + * A quote from SPC-4, paragraph "7.5.10 Control mode page": + * "A task aborted status (TAS) bit set to zero specifies that + * aborted commands shall be terminated by the device server + * without any response to the application client. A TAS bit set + * to one specifies that commands aborted by the actions of an I_T + * nexus other than the I_T nexus on which the command was + * received shall be completed with TASK ABORTED status." + * @preempt_and_abort_list: For the PREEMPT AND ABORT functionality, a list + * with registrations that will be preempted. + */ static void core_tmr_drain_state_list( struct se_device *dev, struct se_cmd *prout_cmd, @@ -351,18 +369,7 @@ static void core_tmr_drain_state_list( cmd->tag, (preempt_and_abort_list) ? "preempt" : "", cmd->pr_res_key); - /* - * If the command may be queued onto a workqueue cancel it now. - * - * This is equivalent to removal from the execute queue in the - * loop above, but we do it down here given that - * cancel_work_sync may block. - */ - cancel_work_sync(&cmd->work); - transport_wait_for_tasks(cmd); - - if (!transport_cmd_finish_abort(cmd)) - target_put_sess_cmd(cmd); + target_put_cmd_and_wait(cmd); } } |