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-rw-r--r--block/blk-cgroup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 471fdcc..b0592bc 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -385,7 +385,9 @@ void blkiocg_update_timeslice_used(struct blkio_group *blkg, unsigned long time,
spin_lock_irqsave(&blkg->stats_lock, flags);
blkg->stats.time += time;
+#ifdef CONFIG_DEBUG_BLK_CGROUP
blkg->stats.unaccounted_time += unaccounted_time;
+#endif
spin_unlock_irqrestore(&blkg->stats_lock, flags);
}
EXPORT_SYMBOL_GPL(blkiocg_update_timeslice_used);
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