blk-mq: remove unused 'nr_expired' from blk_mq_hw_ctx

Dongli Zhang · axboe · commit 9496c015ed39 · 2019-03-19T09:04:06.000-06:00
There is no usage of 'nr_expired'. The 'nr_expired' was introduced by commit 1d9bd51 ("blk-mq: replace timeout synchronization with a RCU and generation based scheme"). Its usage was removed since commit 12f5b93 ("blk-mq: Remove generation seqeunce"). Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git 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;
