diff options
Diffstat (limited to 'block/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 5d0349d602fe..9b186fd6bf47 100644 --- a/block/cfq-iosched.c +++ b/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); |