scsi: use 64-bit LUNs

The SCSI standard defines 64-bit values for LUNs, and large arrays
employing large or hierarchical LUN numbers become more and more
common.

So update the linux SCSI stack to use 64-bit LUN numbers.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 3d1bc67bac9d..f2db82beb646 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -260,7 +260,7 @@ static int iscsi_check_tmf_restrictions(struct iscsi_task *task, int opcode)
 {
         struct iscsi_conn *conn = task->conn;
         struct iscsi_tm *tmf = &conn->tmhdr;
-        unsigned int hdr_lun;
+        u64 hdr_lun;
 
         if (conn->tmf_state == TMF_INITIAL)
                 return 0;
@@ -1859,8 +1859,7 @@ static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn,
  * Fail commands. session lock held and recv side suspended and xmit
  * thread flushed
  */
-static void fail_scsi_tasks(struct iscsi_conn *conn, unsigned lun,
-                            int error)
+static void fail_scsi_tasks(struct iscsi_conn *conn, u64 lun, int error)
 {
         struct iscsi_task *task;
         int i;
@@ -2279,7 +2278,8 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc)
         cls_session = starget_to_session(scsi_target(sc->device));
         session = cls_session->dd_data;
 
-        ISCSI_DBG_EH(session, "LU Reset [sc %p lun %u]\n", sc, sc->device->lun);
+        ISCSI_DBG_EH(session, "LU Reset [sc %p lun %llu]\n", sc,
+                     sc->device->lun);
 
         mutex_lock(&session->eh_mutex);
         spin_lock_bh(&session->frwd_lock);