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Subject: Re: [PATCH v5 02/16] memcg: enable accounting for IP address and
 routing-related objects
To:     Shakeel Butt <shakeelb@google.com>
Cc:     Vasily Averin <vvs@virtuozzo.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Cgroups <cgroups@vger.kernel.org>,
        Michal Hocko <mhocko@kernel.org>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Vladimir Davydov <vdavydov.dev@gmail.com>,
        Roman Gushchin <guro@fb.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
        David Ahern <dsahern@kernel.org>,
        Network Development <netdev@vger.kernel.org>,
        open list <linux-kernel@vger.kernel.org>
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From:   Dmitry Safonov <0x7f454c46@gmail.com>
Message-ID: <55811200-dfca-0cc6-9dd4-692066adf4c6@gmail.com>
Date:   Mon, 19 Jul 2021 15:24:43 +0100
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On 7/19/21 3:22 PM, Shakeel Butt wrote:
> On Mon, Jul 19, 2021 at 7:00 AM Dmitry Safonov <0x7f454c46@gmail.com> wrote:
>>
>> Hi Vasily,
>>
>> On Mon, 19 Jul 2021 at 11:45, Vasily Averin <vvs@virtuozzo.com> wrote:
>> [..]
>>> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
>>> index ae1f5d0..1bbf239 100644
>>> --- a/mm/memcontrol.c
>>> +++ b/mm/memcontrol.c
>>> @@ -968,7 +968,7 @@ static __always_inline bool memcg_kmem_bypass(void)
>>>                 return false;
>>>
>>>         /* Memcg to charge can't be determined. */
>>> -       if (in_interrupt() || !current->mm || (current->flags & PF_KTHREAD))
>>> +       if (!in_task() || !current->mm || (current->flags & PF_KTHREAD))
>>>                 return true;
>>
>> This seems to do two separate things in one patch.
>> Probably, it's better to separate them.
>> (I may miss how route changes are related to more generic
>> __alloc_pages() change)
>>
> 
> It was requested to squash them together in some previous versions.
> https://lore.kernel.org/linux-mm/YEiUIf0old+AZssa@dhcp22.suse.cz/
> 

Ah, alright, never mind than.

Thanks,
           Dmitry