From 0dcec41acb85da33841c2ab56dbf337ed00a3914 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 8 Aug 2019 20:02:10 -0700 Subject: scsi: qla2xxx: Make sure that aborted commands are freed The LIO core requires that the target driver callback functions .queue_data_in() and .queue_status() call target_put_sess_cmd() or transport_generic_free_cmd(). These calls may happen synchronously or asynchronously. Make sure that one of these LIO functions is called in case a command has been aborted. This patch avoids that the code for removing a session hangs due to commands that do not make progress. Cc: Himanshu Madhani Fixes: 694833ee00c4 ("scsi: tcm_qla2xxx: Do not allow aborted cmd to advance.") # v4.13. Fixes: a07100e00ac4 ("qla2xxx: Fix TMR ABORT interaction issue between qla2xxx and TCM") # v4.5. Signed-off-by: Bart Van Assche Tested-by: Himanshu Madhani Reviewed-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/tcm_qla2xxx.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/scsi/qla2xxx/tcm_qla2xxx.c') diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index 963c220f8ba8..042a24314edc 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -620,6 +620,7 @@ static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) { struct qla_tgt_cmd *cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); + struct scsi_qla_host *vha = cmd->vha; if (cmd->aborted) { /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task @@ -632,6 +633,7 @@ static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) cmd->se_cmd.transport_state, cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags); + vha->hw->tgt.tgt_ops->free_cmd(cmd); return 0; } @@ -659,6 +661,7 @@ static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) { struct qla_tgt_cmd *cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); + struct scsi_qla_host *vha = cmd->vha; int xmit_type = QLA_TGT_XMIT_STATUS; if (cmd->aborted) { @@ -672,6 +675,7 @@ static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) cmd, kref_read(&cmd->se_cmd.cmd_kref), cmd->se_cmd.transport_state, cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags); + vha->hw->tgt.tgt_ops->free_cmd(cmd); return 0; } cmd->bufflen = se_cmd->data_length; -- cgit