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| author |   Christoph Hellwig <hch@lst.de> | 2019-06-06 12:26:22 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-06-20 10:32:34 -0600 |
| commit | c0ce79dca5b0e8373a546ebea2af7b3df94c584e (patch) | |
| tree | 2039ddde7e970451a75d78b433177b0b42199282 /block/bfq-iosched.h | |
| parent | blk-cgroup: introduce a new struct blkg_rwstat_sample (diff) | |
| download | wireguard-linux-c0ce79dca5b0e8373a546ebea2af7b3df94c584e.tar.xz wireguard-linux-c0ce79dca5b0e8373a546ebea2af7b3df94c584e.zip | |
blk-cgroup: move struct blkg_stat to bfq
This structure and assorted infrastructure is only used by the bfq I/O
scheduler. Move it there instead of bloating the common code.
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bfq-iosched.h')
| -rw-r--r-- | block/bfq-iosched.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h index c2faa77824f8..aef4fa0046b8 100644 --- a/block/bfq-iosched.h +++ b/block/bfq-iosched.h @@ -777,6 +777,11 @@ enum bfqq_expiration { BFQQE_PREEMPTED /* preemption in progress */ }; +struct bfq_stat { + struct percpu_counter cpu_cnt; + atomic64_t aux_cnt; +}; + struct bfqg_stats { #if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) /* number of ios merged */ @@ -788,19 +793,19 @@ struct bfqg_stats { /* number of IOs queued up */ struct blkg_rwstat queued; /* total disk time and nr sectors dispatched by this group */ - struct blkg_stat time; + struct bfq_stat time; /* sum of number of ios queued across all samples */ - struct blkg_stat avg_queue_size_sum; + struct bfq_stat avg_queue_size_sum; /* count of samples taken for average */ - struct blkg_stat avg_queue_size_samples; + struct bfq_stat avg_queue_size_samples; /* how many times this group has been removed from service tree */ - struct blkg_stat dequeue; + struct bfq_stat dequeue; /* total time spent waiting for it to be assigned a timeslice. */ - struct blkg_stat group_wait_time; + struct bfq_stat group_wait_time; /* time spent idling for this blkcg_gq */ - struct blkg_stat idle_time; + struct bfq_stat idle_time; /* total time with empty current active q with other requests queued */ - struct blkg_stat empty_time; + struct bfq_stat empty_time; /* fields after this shouldn't be cleared on stat reset */ u64 start_group_wait_time; u64 start_idle_time; |