static struct bch_cgroup *cgroup_to_bcache(struct cgroup *cgroup)
{
struct cgroup_subsys_state *css;
return cgroup &&
(css = cgroup_subsys_state(cgroup, bcache_subsys_id))
? container_of(css, struct bch_cgroup, css)
: &bcache_default_cgroup;
}
struct bch_cgroup *bch_bio_to_cgroup(struct bio *bio)
{
struct cgroup_subsys_state *css = bio->bi_css
? cgroup_subsys_state(bio->bi_css->cgroup, bcache_subsys_id)
: task_subsys_state(current, bcache_subsys_id);
return css
? container_of(css, struct bch_cgroup, css)
: &bcache_default_cgroup;
}
static struct vmpressure *cg_to_vmpressure(struct cgroup *cg)
{
return css_to_vmpressure(cgroup_subsys_state(cg, mem_cgroup_subsys_id));
}