From mboxrd@z Thu Jan  1 00:00:00 1970
From: dima <dolenin@parallels.com>
Subject: Re: How to remount btrfs without compression?
Date: Tue, 8 Nov 2011 11:00:42 +0900
Message-ID: <4EB88D4A.5050908@parallels.com>
References: <4EB72C1B.1030702@parallels.com> <201111071319.14493.Martin@lichtvoll.de> <4EB87E01.1040704@parallels.com> <4EB880A0.1030304@gmail.com> <CAG1y0seMUUNwXCY6-=JehE+rrd4PRF55MZoHEUB_9+jDm6N_rA@mail.gmail.com> <4EB88BC9.7020509@gmail.com>
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On 11/08/2011 10:54 AM, Eric Griffith wrote:
> On 11/7/2011 8:52 PM, Fajar A. Nugraha wrote:
>> On Tue, Nov 8, 2011 at 8:06 AM, Eric Griffith<egriffith92@gmail.com>
>> wrote:
>>> Edit your
>>> fstab, remove the compress flag, reboot. Tell btrfs to rebalance the
>>> system,
>>> reboot again. And I -THINK- that'll decompress all the files
>>
>> I think the original question was how to force uncompressed mode,
>> whether specific to a file or to a whole filesystem, without having to
>> reboot :)
>>
>> AFAIK there's no way to do that.
>>
>
> Whoops! Misunderstood the question haha. Yeah, as far as decompressing
> just a single file; from what I've read, thats impossible.


Eric, Fajar,
Thanks. Understood.

Yes, it is possible to remove the compress flag from fstab, reboot and 
even do not do any defragmentation/rebalancing - just re-save the file 
and it will be saved uncompressed. This works. But only with reboot...