[PATCH] libata-ncq: rename ap->qactive to ap->qc_allocated

Rename ap->qactive to ap->qc_allocated.  This is to accomodate
addition of ap->qc_active, mask of active qcs.

Signed-off-by: Tejun Heo <htejun@gmail.com>
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 7c9e280..b3a4f8b 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -474,7 +474,7 @@
 	struct ata_device	device[ATA_MAX_DEVICES];
 
 	struct ata_queued_cmd	qcmd[ATA_MAX_QUEUE];
-	unsigned long		qactive;
+	unsigned long		qc_allocated;
 	unsigned int		active_tag;
 
 	struct ata_host_stats	stats;