linux-kernel - Re: [PATCH] mm/madvise: pageout under plugging

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Message-ID: <YbLIkAsiLy8flTIN@google.com>
Date:   Thu, 9 Dec 2021 19:25:04 -0800
From:   Minchan Kim <minchan@...nel.org>
To:     Miaohe Lin <linmiaohe@...wei.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Jens Axboe <axboe@...nel.dk>, linux-mm <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Suren Baghdasaryan <surenb@...gle.com>,
        John Dias <joaodias@...gle.com>
Subject: Re: [PATCH] mm/madvise: pageout under plugging

On Fri, Dec 10, 2021 at 10:02:24AM +0800, Miaohe Lin wrote:
> Hi:
> On 2021/12/10 8:30, Minchan Kim wrote:
> > Likewise shrink_lruvec[1], madvise_pageout could get the benefit
> > from per-task block plug.
> > 
> > [1] 3da367c3e5fc, vmscan: add block plug for page reclaim
> 
> It seems there is a block plug in the caller do_madvise already. This one
> might not be necessary for madvise.

I missed the place where it was already doing.
I will drop it.

Thanks for the catch.