diff options
Diffstat (limited to 'block/blk-throttle.c')
| -rw-r--r-- | block/blk-throttle.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 5d647edc02a1..cb259bc46f43 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -582,7 +582,6 @@ static void throtl_update_dispatch_stats(struct blkio_group *blkg, u64 bytes, stats_cpu = this_cpu_ptr(pd->stats_cpu); - blkg_stat_add(&stats_cpu->sectors, bytes >> 9); blkg_rwstat_add(&stats_cpu->serviced, rw, 1); blkg_rwstat_add(&stats_cpu->service_bytes, rw, bytes); @@ -843,6 +842,36 @@ static void throtl_update_blkio_group_common(struct throtl_data *td, throtl_schedule_delayed_work(td, 0); } +static u64 blkg_prfill_cpu_rwstat(struct seq_file *sf, + struct blkg_policy_data *pd, int off) +{ + struct blkg_rwstat rwstat = { }, tmp; + int i, cpu; + + for_each_possible_cpu(cpu) { + struct blkio_group_stats_cpu *sc = + per_cpu_ptr(pd->stats_cpu, cpu); + + tmp = blkg_rwstat_read((void *)sc + off); + for (i = 0; i < BLKG_RWSTAT_NR; i++) + rwstat.cnt[i] += tmp.cnt[i]; + } + + return __blkg_prfill_rwstat(sf, pd, &rwstat); +} + +/* print per-cpu blkg_rwstat specified by BLKCG_STAT_PRIV() */ +static int blkcg_print_cpu_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_cpu_rwstat, + BLKCG_STAT_POL(cft->private), + BLKCG_STAT_OFF(cft->private), true); + return 0; +} + static u64 blkg_prfill_conf_u64(struct seq_file *sf, struct blkg_policy_data *pd, int off) { |