From: Mike Christie <michaelc@xxxxxxxxxxx> We must be using the bh spin locking functions in iscsi_eh_device_reset becuase the session lock interacts with a thread and softirq. This patch also fixes up a bogus comment and check in fail_command, because no one drops the lock (bnx2i did but it is not going upstream yet and there were other refcount changes for that). Signed-off-by: Mike Christie <michaelc@xxxxxxxxxxx> --- drivers/scsi/libiscsi.c | 9 ++------- 1 files changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 5aa0db1..801c7cf 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -404,11 +404,6 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_task *task, conn->session->queued_cmdsn--; else conn->session->tt->cleanup_task(conn, task); - /* - * Check if cleanup_task dropped the lock and the command completed, - */ - if (!task->sc) - return; sc->result = err; if (!scsi_bidi_cmnd(sc)) @@ -1829,10 +1824,10 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc) iscsi_suspend_tx(conn); - spin_lock(&session->lock); + spin_lock_bh(&session->lock); fail_all_commands(conn, sc->device->lun, DID_ERROR); conn->tmf_state = TMF_INITIAL; - spin_unlock(&session->lock); + spin_unlock_bh(&session->lock); iscsi_start_tx(conn); goto done; -- 1.5.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
