Commit fb104db4 authored by Vivek Goyal's avatar Vivek Goyal Committed by Jens Axboe
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cfq-iosched: Get rid of nr_groups 



o Currently code does not seem to be using cfqd->nr_groups. Get rid of it.

Signed-off-by: default avatarVivek Goyal <vgoyal@redhat.com>
Reviewed-by: default avatarGui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 1db32c40

block/cfq-iosched.c

+0 −4
Original line number Diff line number Diff line
@@ -208,8 +208,6 @@ struct cfq_data { 
	/* Root service tree for cfq_groups */

	struct cfq_rb_root grp_service_tree;

	struct cfq_group root_group;

	/* Number of active cfq groups on group service tree */

	int nr_groups;



	/*

	 * The priority currently being served
@@ -842,7 +840,6 @@ cfq_group_service_tree_add(struct cfq_data *cfqd, struct cfq_group *cfqg) 


	__cfq_group_service_tree_add(st, cfqg);

	cfqg->on_st = true;

	cfqd->nr_groups++;

	st->total_weight += cfqg->weight;

}
@@ -863,7 +860,6 @@ cfq_group_service_tree_del(struct cfq_data *cfqd, struct cfq_group *cfqg) 


	cfq_log_cfqg(cfqd, cfqg, "del_from_rr group");

	cfqg->on_st = false;

	cfqd->nr_groups--;

	st->total_weight -= cfqg->weight;

	if (!RB_EMPTY_NODE(&cfqg->rb_node))

		cfq_rb_erase(&cfqg->rb_node, st);