---

yaml --- r: 230595 b: refs/heads/master c: e4ea0c1 h: refs/heads/master i: 230593: d40d65c 230591: da825cf v: v3
git-mirror · Dec 13, 2010 · 406aef5 · 406aef5
1 parent fd904eb
commit 406aef5
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 760701bfe14faee8ea0608a9cab2046071d98a39
+refs/heads/master: e4ea0c16a85d221ebcc3a21f32e321440459e0fc
diff --git a/trunk/block/cfq-iosched.c b/trunk/block/cfq-iosched.c
@@ -2101,6 +2101,7 @@ static void choose_service_tree(struct cfq_data *cfqd, struct cfq_group *cfqg)
 	unsigned count;
 	struct cfq_rb_root *st;
 	unsigned group_slice;
+	enum wl_prio_t original_prio = cfqd->serving_prio;
 
 	if (!cfqg) {
 		cfqd->serving_prio = IDLE_WORKLOAD;
@@ -2119,6 +2120,9 @@ static void choose_service_tree(struct cfq_data *cfqd, struct cfq_group *cfqg)
 		return;
 	}
 
+	if (original_prio != cfqd->serving_prio)
+		goto new_workload;
+
 	/*
 	 * For RT and BE, we have to choose also the type
 	 * (SYNC, SYNC_NOIDLE, ASYNC), and to compute a workload
@@ -2133,6 +2137,7 @@ static void choose_service_tree(struct cfq_data *cfqd, struct cfq_group *cfqg)
 	if (count && !time_after(jiffies, cfqd->workload_expires))
 		return;
 
+new_workload:
 	/* otherwise select new workload type */
 	cfqd->serving_type =
 		cfq_choose_wl(cfqd, cfqg, cfqd->serving_prio);