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Message-ID: <41e393e3eb7d2909130906954309acfe980238db.camel@redhat.com>
Subject: Re: [PATCH 0/2] mm/page_alloc: Remote per-cpu lists drain support
From:   Nicolas Saenz Julienne <nsaenzju@redhat.com>
To:     Xiongfeng Wang <wangxiongfeng2@huawei.com>,
        akpm@linux-foundation.org, mtosatti <mtosatti@redhat.com>
Cc:     linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        frederic@kernel.org, tglx@linutronix.de, mtosatti@redhat.com,
        mgorman@suse.de, linux-rt-users@vger.kernel.org, vbabka@suse.cz,
        cl@linux.com, paulmck@kernel.org, willy@infradead.org
Date:   Thu, 10 Feb 2022 12:04:28 +0100
In-Reply-To: <8cf34eed-be5a-1aae-0523-c2de9e087cb6@huawei.com>
References: <20220208100750.1189808-1-nsaenzju@redhat.com>
         <8cf34eed-be5a-1aae-0523-c2de9e087cb6@huawei.com>
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On Thu, 2022-02-10 at 18:59 +0800, Xiongfeng Wang wrote:
> Hi Nicolas,
> 
> I found there are several 'lru_add_drain_per_cpu()' worker thread on the
> NOHZ_FULL CPUs. I am just wondering do you have plan to add support for remote
> per-cpu LRU pagevec drain ?

Yes, this is something we've been meaning to fix too. But haven't started
looking into it yet (maybe Marcelo can contradict me here).

Regards,
Nicolas