From: Yu Kuai yukuai3@huawei.com
hulk inclusion category: feature bugzilla: 38688 CVE: NA
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Add definition of 'legacy_cftypes', so that iocost can be used in cgroup V1.
Signed-off-by: Yu Kuai yukuai3@huawei.com Reviewed-by: Hou Tao houtao1@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- block/blk-iocost.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)
diff --git a/block/blk-iocost.c b/block/blk-iocost.c index 64bd98c5b970d..20442c1dc4d72 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -2450,8 +2450,31 @@ static struct cftype ioc_files[] = { {} };
+static struct cftype ioc_legacy_files[] = { + { + .name = "cost.weight", + .flags = CFTYPE_NOT_ON_ROOT, + .seq_show = ioc_weight_show, + .write = ioc_weight_write, + }, + { + .name = "cost.qos", + .flags = CFTYPE_ONLY_ON_ROOT, + .seq_show = ioc_qos_show, + .write = ioc_qos_write, + }, + { + .name = "cost.model", + .flags = CFTYPE_ONLY_ON_ROOT, + .seq_show = ioc_cost_model_show, + .write = ioc_cost_model_write, + }, + {} +}; + static struct blkcg_policy blkcg_policy_iocost = { .dfl_cftypes = ioc_files, + .legacy_cftypes = ioc_legacy_files, .cpd_alloc_fn = ioc_cpd_alloc, .cpd_free_fn = ioc_cpd_free, .pd_alloc_fn = ioc_pd_alloc,