These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / scsi / libiscsi.c

diff --git a/kernel/drivers/scsi/libiscsi.c b/kernel/drivers/scsi/libiscsi.c
index 98d9bb6..6bffd91 100644 (file)
--- a/kernel/drivers/scsi/libiscsi.c
+++ b/kernel/drivers/scsi/libiscsi.c
@@ -853,12 +853,9 @@ static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
                                     SAM_STAT_CHECK_CONDITION;
                        scsi_build_sense_buffer(1, sc->sense_buffer,
                                                ILLEGAL_REQUEST, 0x10, ascq);
-                       sc->sense_buffer[7] = 0xc; /* Additional sense length */
-                       sc->sense_buffer[8] = 0;   /* Information desc type */
-                       sc->sense_buffer[9] = 0xa; /* Additional desc length */
-                       sc->sense_buffer[10] = 0x80; /* Validity bit */
-
-                       put_unaligned_be64(sector, &sc->sense_buffer[12]);
+                       scsi_set_sense_information(sc->sense_buffer,
+                                                  SCSI_SENSE_BUFFERSIZE,
+                                                  sector);
                        goto out;
                }
        }
@@ -979,13 +976,13 @@ static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
        wake_up(&conn->ehwait);
 }
 
-static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr)
+static int iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr)
 {
         struct iscsi_nopout hdr;
        struct iscsi_task *task;
 
        if (!rhdr && conn->ping_task)
-               return;
+               return -EINVAL;
 
        memset(&hdr, 0, sizeof(struct iscsi_nopout));
        hdr.opcode = ISCSI_OP_NOOP_OUT | ISCSI_OP_IMMEDIATE;
@@ -999,13 +996,16 @@ static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr)
                hdr.ttt = RESERVED_ITT;
 
        task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0);
-       if (!task)
+       if (!task) {
                iscsi_conn_printk(KERN_ERR, conn, "Could not send nopout\n");
-       else if (!rhdr) {
+               return -EIO;
+       } else if (!rhdr) {
                /* only track our nops */
                conn->ping_task = task;
                conn->last_ping = jiffies;
        }
+
+       return 0;
 }
 
 static int iscsi_nop_out_rsp(struct iscsi_task *task,
@@ -2095,8 +2095,10 @@ static void iscsi_check_transport_timeouts(unsigned long data)
        if (time_before_eq(last_recv + recv_timeout, jiffies)) {
                /* send a ping to try to provoke some traffic */
                ISCSI_DBG_CONN(conn, "Sending nopout as ping\n");
-               iscsi_send_nopout(conn, NULL);
-               next_timeout = conn->last_ping + (conn->ping_timeout * HZ);
+               if (iscsi_send_nopout(conn, NULL))
+                       next_timeout = jiffies + (1 * HZ);
+               else
+                       next_timeout = conn->last_ping + (conn->ping_timeout * HZ);
        } else
                next_timeout = last_recv + recv_timeout;