Merge tag 'mmc-v5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

[sfrench/cifs-2.6.git] / block / blk-iolatency.c

diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index d973c38ee4fd65b502af755e491e1a4bb830c0c3..0fff7b56df0e4d0fa0f82be4102f3ceb03735034 100644 (file)
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -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);