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-rw-r--r--block/blk-core.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index c4269701cb4f..a6bd3e702201 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1233,12 +1233,15 @@ static void add_acct_request(struct request_queue *q, struct request *rq,
static void part_round_stats_single(int cpu, struct hd_struct *part,
unsigned long now)
{
+ int inflight;
+
if (now == part->stamp)
return;
- if (part_in_flight(part)) {
+ inflight = part_in_flight(part);
+ if (inflight) {
__part_stat_add(cpu, part, time_in_queue,
- part_in_flight(part) * (now - part->stamp));
+ inflight * (now - part->stamp));
__part_stat_add(cpu, part, io_ticks, (now - part->stamp));
}
part->stamp = now;