lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <33307c790907291959r47b1bd3ap7cfa06fd5154aaad@mail.gmail.com>
Date:	Wed, 29 Jul 2009 19:59:09 -0700
From:	Martin Bligh <mbligh@...gle.com>
To:	Wu Fengguang <fengguang.wu@...el.com>
Cc:	Chad Talbott <ctalbott@...gle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Michael Rubin <mrubin@...gle.com>,
	Andrew Morton <akpm@...gle.com>,
	"sandeen@...hat.com" <sandeen@...hat.com>,
	Michael Davidson <md@...gle.com>
Subject: Re: Bug in kernel 2.6.31, Slow wb_kupdate writeout

On Wed, Jul 29, 2009 at 6:57 PM, Wu Fengguang<fengguang.wu@...el.com> wrote:
> On Thu, Jul 30, 2009 at 09:12:26AM +0800, Martin Bligh wrote:
>> > I agree on the unification of kupdate and sync paths. In fact I had a
>> > patch for doing this. And I'd recommend to do it in two patches:
>> > one to fix the congestion case, another to do the code unification.
>> >
>> > The sync path don't care whether requeue_io() or redirty_tail() is
>> > used, because they disregard the time stamps totally - only order of
>> > inodes matters (ie. starvation), which is same for requeue_io()/redirty_tail().
>>
>> But, as I understand it, both paths share the same lists, so we still have
>> to be consistent?
>
> Then let's first unify the code, then fix the congestion case? :)

OK, I will send it out as separate patches. I am just finishing up the testing
first.

M.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ