linux-kernel - Re: [PATCH 2/2] ext4: implement cgroup writeback support

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: <20150923175723.GC26647@mtj.duckdns.org>
Date:	Wed, 23 Sep 2015 13:57:23 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Theodore Ts'o <tytso@....edu>
Cc:	Artem Bityutskiy <dedekind1@...il.com>, axboe@...nel.dk,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	lizefan@...wei.com, cgroups@...r.kernel.org, hannes@...xchg.org,
	kernel-team@...com, adilger.kernel@...ger.ca,
	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 2/2] ext4: implement cgroup writeback support

Hello, Ted.

On Wed, Sep 23, 2015 at 01:02:38PM -0400, Theodore Ts'o wrote:
> Also note this performance regression reported by Dexuan Cui
> 
> 	https://lkml.org/lkml/2015/9/23/333
> 
> I didn't notice these problems since I my userspace doesn't enable the
> writeback cgroup.  (In fact I don't know how to do it using Debian
> Jessie.)

The thing is I don't think they're either.

> Tejun, can you please take a look at this and give me a
> recommendation?  I'm willing to wait a day or two while we try to fix
> the problem, but past that point I'd like to have a fix or revert this
> commit before Linus releases the next -rc release.

Yeap, looking at them both.  Will update as soon as I know more.

Thanks.

-- 
tejun
--
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/