From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f52.google.com (mail-wg0-f52.google.com [74.125.82.52]) by kanga.kvack.org (Postfix) with ESMTP id 5E2876B0070 for ; Wed, 17 Dec 2014 19:38:29 -0500 (EST) Received: by mail-wg0-f52.google.com with SMTP id x12so227548wgg.11 for ; Wed, 17 Dec 2014 16:38:28 -0800 (PST) Received: from mail-wg0-x234.google.com (mail-wg0-x234.google.com. [2a00:1450:400c:c00::234]) by mx.google.com with ESMTPS id jk4si29835881wid.54.2014.12.17.16.38.28 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 17 Dec 2014 16:38:28 -0800 (PST) Received: by mail-wg0-f52.google.com with SMTP id x12so227542wgg.11 for ; Wed, 17 Dec 2014 16:38:28 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20141217150654.e857603cebd4f97c794a2dff@linux-foundation.org> References: <1418560486-21685-1-git-send-email-nefelim4ag@gmail.com> <20141217150654.e857603cebd4f97c794a2dff@linux-foundation.org> From: Timofey Titovets Date: Thu, 18 Dec 2014 03:37:48 +0300 Message-ID: Subject: Re: [PATCH] mempool.c: Replace io_schedule_timeout with io_schedule Content-Type: multipart/alternative; boundary=047d7bea379290b93c050a72cf76 Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-mm@kvack.org --047d7bea379290b93c050a72cf76 Content-Type: text/plain; charset=UTF-8 2014-12-18 2:06 GMT+03:00 Andrew Morton : > > On Sun, 14 Dec 2014 15:34:46 +0300 Timofey Titovets > wrote: > > > io_schedule_timeout(5*HZ); > > Introduced for avoidance dm bug: > > http://linux.derkeiler.com/Mailing-Lists/Kernel/2006-08/msg04869.html > > According to description must be replaced with io_schedule() > > > > I replace it and recompile kernel, tested it by following script: > > How do we know DM doesn't still depend on the io_schedule_timeout()? > > It would require input from the DM developers and quite a lot of > stress-testing of many kernel subsystems before we could make this > change. > Okay, sorry for noise, will talking with dm devels, and after, if all be good, will resend it. -- Have a nice day, Timofey. --047d7bea379290b93c050a72cf76 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
2014= -12-18 2:06 GMT+03:00 Andrew Morton <akpm@linux-foundation.org= >:
On Sun, 14 Dec 2014 15:34:= 46 +0300 Timofey Titovets <nefelim4ag@gmail.com> wrote:

> io_schedule_timeout(5*HZ);
> Introduced for avoidance dm bug:
> http://linux.derkeiler.com/Mailing-Lists/Kern= el/2006-08/msg04869.html
> According to description must be replaced with io_schedule()
>
> I replace it and recompile kernel, tested it by following script:

How do we know DM doesn't still depend on the io_schedule_timeou= t()?

It would require input from the DM developers and quite a lot of
stress-testing of many kernel subsystems before we could make this
change.

Okay, sorry for noise, wi= ll talking with dm devels, and after, if all be good, will resend it.
=

--
Have a nice day,
Timofey.
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