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-rw-r--r--block/blk-merge.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c
index eb2a3ca5830..d926a24bf1f 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -388,18 +388,19 @@ static int attempt_merge(struct request_queue *q, struct request *req,
if (req->rq_disk) {
struct hd_struct *part;
+ int cpu;
- rcu_read_lock();
-
+ cpu = disk_stat_lock();
part = disk_map_sector_rcu(req->rq_disk, req->sector);
- disk_round_stats(req->rq_disk);
+
+ disk_round_stats(cpu, req->rq_disk);
req->rq_disk->in_flight--;
if (part) {
- part_round_stats(part);
+ part_round_stats(cpu, part);
part->in_flight--;
}
- rcu_read_unlock();
+ disk_stat_unlock();
}
req->ioprio = ioprio_best(req->ioprio, next->ioprio);