blkcg: don't allow or retain configuration of missing devices

[firefly-linux-kernel-4.4.55.git] / block / blk-throttle.c

diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 2ae637b9e80c39f2cbfaf05bf641d5182f2051dc..791b10719e43b0d24a926884384aea9720438efa 100644 (file)
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -196,10 +196,10 @@ static struct blkio_group *throtl_alloc_blkio_group(struct request_queue *q,
        bio_list_init(&tg->bio_lists[1]);
        tg->limits_changed = false;
 
-       tg->bps[READ] = blkcg_get_read_bps(blkcg, tg->blkg.dev);
-       tg->bps[WRITE] = blkcg_get_write_bps(blkcg, tg->blkg.dev);
-       tg->iops[READ] = blkcg_get_read_iops(blkcg, tg->blkg.dev);
-       tg->iops[WRITE] = blkcg_get_write_iops(blkcg, tg->blkg.dev);
+       tg->bps[READ] = -1;
+       tg->bps[WRITE] = -1;
+       tg->iops[READ] = -1;
+       tg->iops[WRITE] = -1;
 
        /*
         * Take the initial reference that will be released on destroy