blkcg: drop BLKCG_STAT_{PRIV|POL|OFF} macros
Now that all stat handling code lives in policy implementations,
there's no need to encode policy ID in cft->private.
* Export blkcg_prfill_[rw]stat() from blkcg, remove
blkcg_print_[rw]stat(), and implement cfqg_print_[rw]stat() which
use hard-code BLKIO_POLICY_PROP.
* Use cft->private for offset of the target field directly and drop
BLKCG_STAT_{PRIV|POL|OFF}().
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index fd505f7..cff8b5b 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1441,6 +1441,26 @@
return 0;
}
+static int cfqg_print_stat(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
+{
+ struct blkio_cgroup *blkcg = cgroup_to_blkio_cgroup(cgrp);
+
+ blkcg_print_blkgs(sf, blkcg, blkg_prfill_stat, BLKIO_POLICY_PROP,
+ cft->private, false);
+ return 0;
+}
+
+static int cfqg_print_rwstat(struct cgroup *cgrp, struct cftype *cft,
+ struct seq_file *sf)
+{
+ struct blkio_cgroup *blkcg = cgroup_to_blkio_cgroup(cgrp);
+
+ blkcg_print_blkgs(sf, blkcg, blkg_prfill_rwstat, BLKIO_POLICY_PROP,
+ cft->private, true);
+ return 0;
+}
+
#ifdef CONFIG_DEBUG_BLK_CGROUP
static u64 cfqg_prfill_avg_queue_size(struct seq_file *sf, void *pdata, int off)
{
@@ -1482,51 +1502,43 @@
},
{
.name = "time",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.time)),
- .read_seq_string = blkcg_print_stat,
+ .private = offsetof(struct cfq_group, stats.time),
+ .read_seq_string = cfqg_print_stat,
},
{
.name = "sectors",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.sectors)),
- .read_seq_string = blkcg_print_stat,
+ .private = offsetof(struct cfq_group, stats.sectors),
+ .read_seq_string = cfqg_print_stat,
},
{
.name = "io_service_bytes",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.service_bytes)),
- .read_seq_string = blkcg_print_rwstat,
+ .private = offsetof(struct cfq_group, stats.service_bytes),
+ .read_seq_string = cfqg_print_rwstat,
},
{
.name = "io_serviced",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.serviced)),
- .read_seq_string = blkcg_print_rwstat,
+ .private = offsetof(struct cfq_group, stats.serviced),
+ .read_seq_string = cfqg_print_rwstat,
},
{
.name = "io_service_time",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.service_time)),
- .read_seq_string = blkcg_print_rwstat,
+ .private = offsetof(struct cfq_group, stats.service_time),
+ .read_seq_string = cfqg_print_rwstat,
},
{
.name = "io_wait_time",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.wait_time)),
- .read_seq_string = blkcg_print_rwstat,
+ .private = offsetof(struct cfq_group, stats.wait_time),
+ .read_seq_string = cfqg_print_rwstat,
},
{
.name = "io_merged",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.merged)),
- .read_seq_string = blkcg_print_rwstat,
+ .private = offsetof(struct cfq_group, stats.merged),
+ .read_seq_string = cfqg_print_rwstat,
},
{
.name = "io_queued",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.queued)),
- .read_seq_string = blkcg_print_rwstat,
+ .private = offsetof(struct cfq_group, stats.queued),
+ .read_seq_string = cfqg_print_rwstat,
},
#ifdef CONFIG_DEBUG_BLK_CGROUP
{
@@ -1535,33 +1547,28 @@
},
{
.name = "group_wait_time",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.group_wait_time)),
- .read_seq_string = blkcg_print_stat,
+ .private = offsetof(struct cfq_group, stats.group_wait_time),
+ .read_seq_string = cfqg_print_stat,
},
{
.name = "idle_time",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.idle_time)),
- .read_seq_string = blkcg_print_stat,
+ .private = offsetof(struct cfq_group, stats.idle_time),
+ .read_seq_string = cfqg_print_stat,
},
{
.name = "empty_time",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.empty_time)),
- .read_seq_string = blkcg_print_stat,
+ .private = offsetof(struct cfq_group, stats.empty_time),
+ .read_seq_string = cfqg_print_stat,
},
{
.name = "dequeue",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.dequeue)),
- .read_seq_string = blkcg_print_stat,
+ .private = offsetof(struct cfq_group, stats.dequeue),
+ .read_seq_string = cfqg_print_stat,
},
{
.name = "unaccounted_time",
- .private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct cfq_group, stats.unaccounted_time)),
- .read_seq_string = blkcg_print_stat,
+ .private = offsetof(struct cfq_group, stats.unaccounted_time),
+ .read_seq_string = cfqg_print_stat,
},
#endif /* CONFIG_DEBUG_BLK_CGROUP */
{ } /* terminate */
