diff options
| -rw-r--r-- | block/blk-core.c | 38 | ||||
| -rw-r--r-- | block/blk-mq.c | 12 |
2 files changed, 33 insertions, 17 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 6ad2b8602c1d..d836c84ad3da 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1470,17 +1470,12 @@ static void add_acct_request(struct request_queue *q, struct request *rq, } static void part_round_stats_single(struct request_queue *q, int cpu, - struct hd_struct *part, unsigned long now) + struct hd_struct *part, unsigned long now, + unsigned int inflight) { - int inflight[2]; - - if (now == part->stamp) - return; - - part_in_flight(q, part, inflight); - if (inflight[0]) { + if (inflight) { __part_stat_add(cpu, part, time_in_queue, - inflight[0] * (now - part->stamp)); + inflight * (now - part->stamp)); __part_stat_add(cpu, part, io_ticks, (now - part->stamp)); } part->stamp = now; @@ -1505,12 +1500,29 @@ static void part_round_stats_single(struct request_queue *q, int cpu, */ void part_round_stats(struct request_queue *q, int cpu, struct hd_struct *part) { + struct hd_struct *part2 = NULL; unsigned long now = jiffies; + unsigned int inflight[2]; + int stats = 0; + + if (part->stamp != now) + stats |= 1; + + if (part->partno) { + part2 = &part_to_disk(part)->part0; + if (part2->stamp != now) + stats |= 2; + } + + if (!stats) + return; + + part_in_flight(q, part, inflight); - if (part->partno) - part_round_stats_single(q, cpu, &part_to_disk(part)->part0, - now); - part_round_stats_single(q, cpu, part, now); + if (stats & 2) + part_round_stats_single(q, cpu, part2, now, inflight[1]); + if (stats & 1) + part_round_stats_single(q, cpu, part, now, inflight[0]); } EXPORT_SYMBOL_GPL(part_round_stats); diff --git a/block/blk-mq.c b/block/blk-mq.c index 0dfc7a9984b6..fe764ca16993 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -97,11 +97,15 @@ static void blk_mq_check_inflight(struct blk_mq_hw_ctx *hctx, if (test_bit(REQ_ATOM_STARTED, &rq->atomic_flags) && !test_bit(REQ_ATOM_COMPLETE, &rq->atomic_flags)) { /* - * Count as inflight if it either matches the partition we - * asked for, or if it's the root + * index[0] counts the specific partition that was asked + * for. index[1] counts the ones that are active on the + * whole device, so increment that if mi->part is indeed + * a partition, and not a whole device. */ - if (rq->part == mi->part || mi->part->partno) + if (rq->part == mi->part) mi->inflight[0]++; + if (mi->part->partno) + mi->inflight[1]++; } } @@ -110,7 +114,7 @@ void blk_mq_in_flight(struct request_queue *q, struct hd_struct *part, { struct mq_inflight mi = { .part = part, .inflight = inflight, }; - inflight[0] = 0; + inflight[0] = inflight[1] = 0; blk_mq_queue_tag_busy_iter(q, blk_mq_check_inflight, &mi); } |