There is no usage of 'nr_expired'.
The 'nr_expired' was introduced by commit 1d9bd5161ba3 ("blk-mq: replace
timeout synchronization with a RCU and generation based scheme"). Its usage
was removed since commit 12f5b9314545 ("blk-mq: Remove generation
seqeunce").
Signed-off-by: Dongli Zhang <dongli.zhang@xxxxxxxxxx>
---
include/linux/blk-mq.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index b0c814b..3535969 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -57,7 +57,6 @@ struct blk_mq_hw_ctx {
unsigned int queue_num;
atomic_t nr_active;
- unsigned int nr_expired;
struct hlist_node cpuhp_dead;
struct kobject kobj;
--
2.7.4
