1 files changed, 13 insertions, 3 deletions

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 4b95c4387e9e..3fa75eac135d 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -190,7 +190,7 @@ static ssize_t ata_scsi_park_show(struct device *device,
         struct ata_port *ap;
         struct ata_link *link;
         struct ata_device *dev;
-        unsigned long flags;
+        unsigned long flags, now;
         unsigned int uninitialized_var(msecs);
         int rc = 0;
 
@@ -208,10 +208,11 @@ static ssize_t ata_scsi_park_show(struct device *device,
         }
 
         link = dev->link;
+        now = jiffies;
         if (ap->pflags & ATA_PFLAG_EH_IN_PROGRESS &&
             link->eh_context.unloaded_mask & (1 << dev->devno) &&
-            time_after(dev->unpark_deadline, jiffies))
-                msecs = jiffies_to_msecs(dev->unpark_deadline - jiffies);
+            time_after(dev->unpark_deadline, now))
+                msecs = jiffies_to_msecs(dev->unpark_deadline - now);
         else
                 msecs = 0;
 
@@ -1107,6 +1108,15 @@ static int ata_scsi_dev_config(struct scsi_device *sdev,
 
                 depth = min(sdev->host->can_queue, ata_id_queue_depth(dev->id));
                 depth = min(ATA_MAX_QUEUE - 1, depth);
+
+                /*
+                 * If this device is behind a port multiplier, we have
+                 * to share the tag map between all devices on that PMP.
+                 * Set up the shared tag map here and we get automatic.
+                 */
+                if (dev->link->ap->pmp_link)
+                        scsi_init_shared_tag_map(sdev->host, ATA_MAX_QUEUE - 1);
+
                 scsi_set_tag_type(sdev, MSG_SIMPLE_TAG);
                 scsi_activate_tcq(sdev, depth);
         }