diff options
Diffstat (limited to 'block/blk-iolatency.c')
| -rw-r--r-- | block/blk-iolatency.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c index d8b0d8bd132b..c0545f9da549 100644 --- a/block/blk-iolatency.c +++ b/block/blk-iolatency.c @@ -890,8 +890,7 @@ static int iolatency_print_limit(struct seq_file *sf, void *v) return 0; } -static size_t iolatency_ssd_stat(struct iolatency_grp *iolat, char *buf, - size_t size) +static bool iolatency_ssd_stat(struct iolatency_grp *iolat, struct seq_file *s) { struct latency_stat stat; int cpu; @@ -906,39 +905,40 @@ static size_t iolatency_ssd_stat(struct iolatency_grp *iolat, char *buf, preempt_enable(); if (iolat->rq_depth.max_depth == UINT_MAX) - return scnprintf(buf, size, " missed=%llu total=%llu depth=max", - (unsigned long long)stat.ps.missed, - (unsigned long long)stat.ps.total); - return scnprintf(buf, size, " missed=%llu total=%llu depth=%u", - (unsigned long long)stat.ps.missed, - (unsigned long long)stat.ps.total, - iolat->rq_depth.max_depth); + seq_printf(s, " missed=%llu total=%llu depth=max", + (unsigned long long)stat.ps.missed, + (unsigned long long)stat.ps.total); + else + seq_printf(s, " missed=%llu total=%llu depth=%u", + (unsigned long long)stat.ps.missed, + (unsigned long long)stat.ps.total, + iolat->rq_depth.max_depth); + return true; } -static size_t iolatency_pd_stat(struct blkg_policy_data *pd, char *buf, - size_t size) +static bool iolatency_pd_stat(struct blkg_policy_data *pd, struct seq_file *s) { struct iolatency_grp *iolat = pd_to_lat(pd); unsigned long long avg_lat; unsigned long long cur_win; if (!blkcg_debug_stats) - return 0; + return false; if (iolat->ssd) - return iolatency_ssd_stat(iolat, buf, size); + return iolatency_ssd_stat(iolat, s); avg_lat = div64_u64(iolat->lat_avg, NSEC_PER_USEC); cur_win = div64_u64(iolat->cur_win_nsec, NSEC_PER_MSEC); if (iolat->rq_depth.max_depth == UINT_MAX) - return scnprintf(buf, size, " depth=max avg_lat=%llu win=%llu", - avg_lat, cur_win); - - return scnprintf(buf, size, " depth=%u avg_lat=%llu win=%llu", - iolat->rq_depth.max_depth, avg_lat, cur_win); + seq_printf(s, " depth=max avg_lat=%llu win=%llu", + avg_lat, cur_win); + else + seq_printf(s, " depth=%u avg_lat=%llu win=%llu", + iolat->rq_depth.max_depth, avg_lat, cur_win); + return true; } - static struct blkg_policy_data *iolatency_pd_alloc(gfp_t gfp, struct request_queue *q, struct blkcg *blkcg) |