linux-kernel - Re: [PATCH for linux-next] mm/page-writeback.c: make changes of dirty_writeback

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Message-ID: <082a7d89-d2c1-cef7-e07d-d7876f653e92@kernel.dk>
Date:   Sat, 14 Oct 2017 09:14:53 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Yafang Shao <laoar.shao@...il.com>, akpm@...ux-foundation.org
Cc:     jack@...e.cz, hannes@...xchg.org, vdavydov.dev@...il.com,
        jlayton@...hat.com, nborisov@...e.com, tytso@....edu,
        yamada.masahiro@...ionext.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH for linux-next] mm/page-writeback.c: make changes of
 dirty_writeback_centisecs take effect immediately

On 10/14/2017 02:38 AM, Yafang Shao wrote:
> This patch is the followup of the prvious patch:
> [writeback: schedule periodic writeback with sysctl].
> 
> There's another issue to fix.
> For example,
> - When the tunable was set to one hour and is reset to one second, the
>   new setting will not take effect for up to one hour.
> 
> Kicking the flusher threads immediately fixes it.

Queued up, thanks.

-- 
Jens Axboe