From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f70.google.com (mail-pg0-f70.google.com [74.125.83.70]) by kanga.kvack.org (Postfix) with ESMTP id 3B3616B028C for ; Sat, 14 Oct 2017 11:15:02 -0400 (EDT) Received: by mail-pg0-f70.google.com with SMTP id y7so3032867pgb.16 for ; Sat, 14 Oct 2017 08:15:02 -0700 (PDT) Received: from mail-sor-f41.google.com (mail-sor-f41.google.com. [209.85.220.41]) by mx.google.com with SMTPS id s14sor813182pgc.161.2017.10.14.08.15.00 for (Google Transport Security); Sat, 14 Oct 2017 08:15:00 -0700 (PDT) Subject: Re: [PATCH for linux-next] mm/page-writeback.c: make changes of dirty_writeback_centisecs take effect immediately References: <1507970307-16431-1-git-send-email-laoar.shao@gmail.com> From: Jens Axboe Message-ID: <082a7d89-d2c1-cef7-e07d-d7876f653e92@kernel.dk> Date: Sat, 14 Oct 2017 09:14:53 -0600 MIME-Version: 1.0 In-Reply-To: <1507970307-16431-1-git-send-email-laoar.shao@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Yafang Shao , akpm@linux-foundation.org Cc: jack@suse.cz, hannes@cmpxchg.org, vdavydov.dev@gmail.com, jlayton@redhat.com, nborisov@suse.com, tytso@mit.edu, yamada.masahiro@socionext.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org