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blkcg: allow blkcg_policy->pd_stat() to print non-debug info too

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Currently, ->pd_stat() is called only when moduleparam
blkcg_debug_stats is set which prevents it from printing non-debug
policy-specific statistics.  Let's move debug testing down so that
->pd_stat() can print non-debug stat too.  This patch doesn't cause
any visible behavior change.

Signed-off-by: Tejun Heo <[email protected]>
Cc: Josef Bacik <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Tejun Heo 2019-07-16 07:58:31 -07:00 • committed by Jens Axboe
commit 07b0fdecb2
3 changed files with 7 additions and 6 deletions
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3
block/blk-iolatency.c
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@ -917,6 +917,9 @@ static size_t iolatency_pd_stat(struct blkg_policy_data *pd, char *buf,
unsigned long long avg_lat;
unsigned long long cur_win;
if (!blkcg_debug_stats)
return 0;
if (iolat->ssd)
return iolatency_ssd_stat(iolat, buf, size);