Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

[karo-tx-linux.git] / drivers / scsi / libiscsi.c

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 703eb6a88790280c788b9fb88ce331d15ff282e1..685eaec532180d107de1dbff954a9e679170b1ea 100644 (file)
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -2338,7 +2338,7 @@ EXPORT_SYMBOL_GPL(iscsi_session_recovery_timedout);
  * This function will wait for a relogin, session termination from
  * userspace, or a recovery/replacement timeout.
  */
-static int iscsi_eh_session_reset(struct scsi_cmnd *sc)
+int iscsi_eh_session_reset(struct scsi_cmnd *sc)
 {
        struct iscsi_cls_session *cls_session;
        struct iscsi_session *session;
@@ -2389,6 +2389,7 @@ failed:
        mutex_unlock(&session->eh_mutex);
        return SUCCESS;
 }
+EXPORT_SYMBOL_GPL(iscsi_eh_session_reset);
 
 static void iscsi_prep_tgt_reset_pdu(struct scsi_cmnd *sc, struct iscsi_tm *hdr)
 {
@@ -2403,8 +2404,7 @@ static void iscsi_prep_tgt_reset_pdu(struct scsi_cmnd *sc, struct iscsi_tm *hdr)
  * iscsi_eh_target_reset - reset target
  * @sc: scsi command
  *
- * This will attempt to send a warm target reset. If that fails
- * then we will drop the session and attempt ERL0 recovery.
+ * This will attempt to send a warm target reset.
  */
 int iscsi_eh_target_reset(struct scsi_cmnd *sc)
 {
@@ -2476,12 +2476,27 @@ done:
        ISCSI_DBG_EH(session, "tgt %s reset result = %s\n", session->targetname,
                     rc == SUCCESS ? "SUCCESS" : "FAILED");
        mutex_unlock(&session->eh_mutex);
+       return rc;
+}
+EXPORT_SYMBOL_GPL(iscsi_eh_target_reset);
 
+/**
+ * iscsi_eh_recover_target - reset target and possibly the session
+ * @sc: scsi command
+ *
+ * This will attempt to send a warm target reset. If that fails,
+ * we will escalate to ERL0 session recovery.
+ */
+int iscsi_eh_recover_target(struct scsi_cmnd *sc)
+{
+       int rc;
+
+       rc = iscsi_eh_target_reset(sc);
        if (rc == FAILED)
                rc = iscsi_eh_session_reset(sc);
        return rc;
 }
-EXPORT_SYMBOL_GPL(iscsi_eh_target_reset);
+EXPORT_SYMBOL_GPL(iscsi_eh_recover_target);
 
 /*
  * Pre-allocate a pool of @max items of @item_size. By default, the pool