mm: correctly charge compressed memory to its memcg
Kswapd will reclaim memory when memory pressure is high, the annonymous memory will be compressed and stored in the zpool if zswap is enabled. The memcg_kmem_bypass() in get_obj_cgroup_from_page() will bypass the kernel thread and cause the compressed memory not be charged to its memory cgroup. Remove the memcg_kmem_bypass() call and properly charge compressed memory to its corresponding memory cgroup. Link: https://lore.kernel.org/linux-mm/CALvZod4nnn8BHYqAM4xtcR0Ddo2-Wr8uKm9h_CHWUaXw7g_DCg@mail.gmail.com/ Link: https://lkml.kernel.org/r/20221114194828.100822-1-hannes@cmpxchg.org Fixes: f4840ccf ("zswap: memcg accounting") Signed-off-by:Li Liguang <liliguang@baidu.com> Signed-off-by:
Johannes Weiner <hannes@cmpxchg.org> Acked-by:
Shakeel Butt <shakeelb@google.com> Reviewed-by:
Muchun Song <songmuchun@bytedance.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: <stable@vger.kernel.org> [5.19+] Signed-off-by:
Andrew Morton <akpm@linux-foundation.org>
parent
b6305049