blkcg: move blkio_group_conf->weight to cfq
blkio_group_conf->weight is owned by cfq and has no reason to be
defined in blkcg core. Replace it with cfq_group->dev_weight and let
conf setting functions directly set it. If dev_weight is zero, the
cfqg doesn't have device specific weight configured.
Also, rename BLKIO_WEIGHT_* constants to CFQ_WEIGHT_* and rename
blkio_cgroup->weight to blkio_cgroup->cfq_weight. We eventually want
per-policy storage in blkio_cgroup but just mark the ownership of the
field for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 16f6ee6..c0e239b 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -30,7 +30,7 @@
static DEFINE_MUTEX(all_q_mutex);
static LIST_HEAD(all_q_list);
-struct blkio_cgroup blkio_root_cgroup = { .weight = 2*BLKIO_WEIGHT_DEFAULT };
+struct blkio_cgroup blkio_root_cgroup = { .cfq_weight = 2 * CFQ_WEIGHT_DEFAULT };
EXPORT_SYMBOL_GPL(blkio_root_cgroup);
static struct blkio_policy_type *blkio_policy[BLKIO_NR_POLICIES];
@@ -611,7 +611,7 @@
if (!blkcg)
return ERR_PTR(-ENOMEM);
- blkcg->weight = BLKIO_WEIGHT_DEFAULT;
+ blkcg->cfq_weight = CFQ_WEIGHT_DEFAULT;
blkcg->id = atomic64_inc_return(&id_seq); /* root is 0, start from 1 */
done:
spin_lock_init(&blkcg->lock);