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authorTejun Heo <tj@kernel.org>2012-04-01 14:38:44 -0700
committerTejun Heo <tj@kernel.org>2012-04-01 14:38:44 -0700
commit155fead9b6347ead90e0b0396cb108a6ba6126c6 (patch)
tree7e14bb87d942561aa5f44ac8a2d09d6e546c6ccb /block/blk-cgroup.h
parent9ade5ea4ce57d3596eaee6a57cd212a483674058 (diff)
downloadop-kernel-dev-155fead9b6347ead90e0b0396cb108a6ba6126c6.zip
op-kernel-dev-155fead9b6347ead90e0b0396cb108a6ba6126c6.tar.gz
blkcg: move blkio_group_stats to cfq-iosched.c
blkio_group_stats contains only fields used by cfq and has no reason to be defined in blkcg core. * Move blkio_group_stats to cfq-iosched.c and rename it to cfqg_stats. * blkg_policy_data->stats is replaced with cfq_group->stats. blkg_prfill_[rw]stat() are updated to use offset against pd->pdata instead. * All related macros / functions are renamed so that they have cfqg_ prefix and the unnecessary @pol arguments are dropped. * All stat functions now take cfq_group * instead of blkio_group *. * lockdep assertion on queue lock dropped. Elevator runs under queue lock by default. There isn't much to be gained by adding lockdep assertions at stat function level. * cfqg_stats_reset() implemented for blkio_reset_group_stats_fn method so that cfqg->stats can be reset. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'block/blk-cgroup.h')
-rw-r--r--block/blk-cgroup.h41
1 files changed, 0 insertions, 41 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index d0ee649..791570394 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -64,46 +64,6 @@ struct blkg_rwstat {
uint64_t cnt[BLKG_RWSTAT_NR];
};
-struct blkio_group_stats {
- /* total bytes transferred */
- struct blkg_rwstat service_bytes;
- /* total IOs serviced, post merge */
- struct blkg_rwstat serviced;
- /* number of ios merged */
- struct blkg_rwstat merged;
- /* total time spent on device in ns, may not be accurate w/ queueing */
- struct blkg_rwstat service_time;
- /* total time spent waiting in scheduler queue in ns */
- struct blkg_rwstat wait_time;
- /* number of IOs queued up */
- struct blkg_rwstat queued;
- /* total sectors transferred */
- struct blkg_stat sectors;
- /* total disk time and nr sectors dispatched by this group */
- struct blkg_stat time;
-#ifdef CONFIG_DEBUG_BLK_CGROUP
- /* time not charged to this cgroup */
- struct blkg_stat unaccounted_time;
- /* sum of number of ios queued across all samples */
- struct blkg_stat avg_queue_size_sum;
- /* count of samples taken for average */
- struct blkg_stat avg_queue_size_samples;
- /* how many times this group has been removed from service tree */
- struct blkg_stat dequeue;
- /* total time spent waiting for it to be assigned a timeslice. */
- struct blkg_stat group_wait_time;
- /* time spent idling for this blkio_group */
- struct blkg_stat idle_time;
- /* total time with empty current active q with other requests queued */
- struct blkg_stat empty_time;
- /* fields after this shouldn't be cleared on stat reset */
- uint64_t start_group_wait_time;
- uint64_t start_idle_time;
- uint64_t start_empty_time;
- uint16_t flags;
-#endif
-};
-
/* Per cpu blkio group stats */
struct blkio_group_stats_cpu {
/* total bytes transferred */
@@ -126,7 +86,6 @@ struct blkg_policy_data {
/* Configuration */
struct blkio_group_conf conf;
- struct blkio_group_stats stats;
/* Per cpu stats pointer */
struct blkio_group_stats_cpu __percpu *stats_cpu;
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