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

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Date:	Wed, 23 Sep 2015 13:53:37 -0400
From:	Chris Mason <clm@...com>
To:	Artem Bityutskiy <dedekind1@...il.com>
CC:	<linux-ext4@...r.kernel.org>, <hannes@...xchg.org>,
	<axboe@...nel.dk>, Tejun Heo <tj@...nel.org>,
	"Theodore Ts'o" <tytso@....edu>, <linux-fsdevel@...r.kernel.org>,
	<lizefan@...wei.com>, <cgroups@...r.kernel.org>,
	<adilger.kernel@...ger.ca>, <kernel-team@...com>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] ext4: implement cgroup writeback support

On Wed, Sep 23, 2015 at 08:41:25PM +0300, Artem Bityutskiy wrote:
>    Hi
> 
>    $ sync
>    $ reboot

If this is case, it should be possible to reproduce with:

cp a bunch of stuff to /ext4
unmount /ext4
mount ext4
compare data

If you're not getting a clean unmount of the test FS during the reboot,
its a different test.  Trying to reproduce here, so far its clean.
Could you please double check for failed unmounts?

Thanks,
Chris
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