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authorMike Christie <michaelc@cs.wisc.edu>2009-05-13 17:57:50 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-05-23 15:44:13 -0500
commit4421c9ebeeacf3d9c4e6aa558e1a777178e71add (patch)
treea8031ee02bcb91fa3b3793689b9277a92d2ac830 /drivers/scsi/libiscsi.c
parentb3cd5050bf8eb32ceecee129cac7c59e6f1668c4 (diff)
[SCSI] libiscsi: add debug printks for iscsi command completion path
This patch just adds some debug statements for the abort and completion paths. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/libiscsi.c')
-rw-r--r--drivers/scsi/libiscsi.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index b00be6c3efc..59908aead53 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -393,10 +393,12 @@ static void iscsi_free_task(struct iscsi_task *task)
struct iscsi_session *session = conn->session;
struct scsi_cmnd *sc = task->sc;
+ ISCSI_DBG_SESSION(session, "freeing task itt 0x%x state %d sc %p\n",
+ task->itt, task->state, task->sc);
+
session->tt->cleanup_task(task);
task->state = ISCSI_TASK_FREE;
task->sc = NULL;
-
/*
* login task is preallocated so do not free
*/
@@ -451,6 +453,9 @@ static void iscsi_complete_task(struct iscsi_task *task, int state)
{
struct iscsi_conn *conn = task->conn;
+ ISCSI_DBG_SESSION(conn->session,
+ "complete task itt 0x%x state %d sc %p\n",
+ task->itt, task->state, task->sc);
if (task->state == ISCSI_TASK_COMPLETED ||
task->state == ISCSI_TASK_ABRT_TMF ||
task->state == ISCSI_TASK_ABRT_SESS_RECOV)
@@ -1836,6 +1841,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
cls_session = starget_to_session(scsi_target(sc->device));
session = cls_session->dd_data;
+ ISCSI_DBG_SESSION(session, "aborting sc %p\n", sc);
+
mutex_lock(&session->eh_mutex);
spin_lock_bh(&session->lock);
/*
@@ -1858,6 +1865,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
sc->SCp.phase != session->age) {
spin_unlock_bh(&session->lock);
mutex_unlock(&session->eh_mutex);
+ ISCSI_DBG_SESSION(session, "failing abort due to dropped "
+ "session.\n");
return FAILED;
}