diff options
Diffstat (limited to 'block/blk-cgroup.c')
| -rw-r--r-- | block/blk-cgroup.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 28d227c5ca77..e17da947f6bd 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -928,7 +928,15 @@ struct cgroup_subsys blkio_cgrp_subsys = { .css_offline = blkcg_css_offline, .css_free = blkcg_css_free, .can_attach = blkcg_can_attach, - .base_cftypes = blkcg_files, + .legacy_cftypes = blkcg_files, +#ifdef CONFIG_MEMCG + /* + * This ensures that, if available, memcg is automatically enabled + * together on the default hierarchy so that the owner cgroup can + * be retrieved from writeback pages. + */ + .depends_on = 1 << memory_cgrp_id, +#endif }; EXPORT_SYMBOL_GPL(blkio_cgrp_subsys); @@ -1120,7 +1128,8 @@ int blkcg_policy_register(struct blkcg_policy *pol) /* everything is in place, add intf files for the new policy */ if (pol->cftypes) - WARN_ON(cgroup_add_cftypes(&blkio_cgrp_subsys, pol->cftypes)); + WARN_ON(cgroup_add_legacy_cftypes(&blkio_cgrp_subsys, + pol->cftypes)); ret = 0; out_unlock: mutex_unlock(&blkcg_pol_mutex); |