diff options
| -rw-r--r-- | block/blk-cgroup-rwstat.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/block/blk-cgroup-rwstat.c b/block/blk-cgroup-rwstat.c index aae910713814..2e9bf081cce2 100644 --- a/block/blk-cgroup-rwstat.c +++ b/block/blk-cgroup-rwstat.c @@ -88,8 +88,7 @@ EXPORT_SYMBOL_GPL(blkg_prfill_rwstat); * @sum: blkg_rwstat_sample structure containing the results * * Collect the blkg_rwstat specified by @blkg, @pol and @off and all its - * online descendants and their aux counts. The caller must be holding the - * queue lock for online tests. + * online descendants and their aux counts. * * If @pol is NULL, blkg_rwstat is at @off bytes into @blkg; otherwise, it * is at @off bytes into @blkg's blkg_policy_data of the policy. @@ -107,7 +106,7 @@ void blkg_rwstat_recursive_sum(struct blkcg_gq *blkg, struct blkcg_policy *pol, blkg_for_each_descendant_pre(pos_blkg, pos_css, blkg) { struct blkg_rwstat *rwstat; - if (!pos_blkg->online) + if (!data_race(pos_blkg->online)) continue; if (pol) { |