diff options
| -rw-r--r-- | block/blk-cgroup.c | 6 | ||||
| -rw-r--r-- | block/blk-cgroup.h | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 53976f2704a5..4e714f8ddcd2 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1538,6 +1538,9 @@ void blkio_policy_register(struct blkio_policy_type *blkiop) list_for_each_entry(q, &all_q_list, all_q_node) update_root_blkg_pd(q, blkiop->plid); blkcg_bypass_end(); + + if (blkiop->cftypes) + WARN_ON(cgroup_add_cftypes(&blkio_subsys, blkiop->cftypes)); } EXPORT_SYMBOL_GPL(blkio_policy_register); @@ -1545,6 +1548,9 @@ void blkio_policy_unregister(struct blkio_policy_type *blkiop) { struct request_queue *q; + if (blkiop->cftypes) + cgroup_rm_cftypes(&blkio_subsys, blkiop->cftypes); + blkcg_bypass_start(); spin_lock(&blkio_list_lock); diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 361ecfa4d28d..fa744d57bebb 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -181,6 +181,7 @@ struct blkio_policy_type { struct blkio_policy_ops ops; enum blkio_policy_id plid; size_t pdata_size; /* policy specific private data size */ + struct cftype *cftypes; /* cgroup files for the policy */ }; extern int blkcg_init_queue(struct request_queue *q); |