diff options
Diffstat (limited to 'mm/memcontrol-v1.c')
| -rw-r--r-- | mm/memcontrol-v1.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/mm/memcontrol-v1.c b/mm/memcontrol-v1.c index f8744f5630bb..ef7e2a0ec66a 100644 --- a/mm/memcontrol-v1.c +++ b/mm/memcontrol-v1.c @@ -593,29 +593,19 @@ static inline int mem_cgroup_move_swap_account(swp_entry_t entry, static u64 mem_cgroup_move_charge_read(struct cgroup_subsys_state *css, struct cftype *cft) { - return mem_cgroup_from_css(css)->move_charge_at_immigrate; + return 0; } #ifdef CONFIG_MMU static int mem_cgroup_move_charge_write(struct cgroup_subsys_state *css, struct cftype *cft, u64 val) { - struct mem_cgroup *memcg = mem_cgroup_from_css(css); - pr_warn_once("Cgroup memory moving (move_charge_at_immigrate) is deprecated. " "Please report your usecase to linux-mm@kvack.org if you " "depend on this functionality.\n"); - if (val & ~MOVE_MASK) + if (val != 0) return -EINVAL; - - /* - * No kind of locking is needed in here, because ->can_attach() will - * check this value once in the beginning of the process, and then carry - * on with stale data. This means that changes to this value will only - * affect task migrations starting after the change. - */ - memcg->move_charge_at_immigrate = val; return 0; } #else |