From: Liu Bo <liubo2009@cn.fujitsu.com>
To: "Fajar A. Nugraha" <list@fajar.net>
Cc: Remco Hosman <remco@hosman.xs4all.nl>, linux-btrfs@vger.kernel.org
Subject: Re: Compession, on filesystem or volume?
Date: Thu, 29 Dec 2011 20:35:00 +0800 [thread overview]
Message-ID: <4EFC5E74.70600@cn.fujitsu.com> (raw)
In-Reply-To: <CAG1y0sf2QFbD5_6xK1iHtdaBLBtZsNFgk1KrTpavNfZQX-CH1w@mail.gmail.com>
On 12/29/2011 07:11 PM, Fajar A. Nugraha wrote:
> On Thu, Dec 29, 2011 at 5:51 PM, Remco Hosman <remco@hosman.xs4all.nl> wrote:
>> Hi,
>>
>> Something i could not find in the documentation i managed to find:
>> if you mount with compress=lzo and rebalance, is compression on for that
>> filesystem or only a single volume?
>>
>> eg, can i have a @boot volume uncompressed and @ and @home compressed.
>
> Last time I asked a similar question, the answer was no. It's per filesystem.
>
> however you can change compression of individual files between
> zlib/lzo using "btrfs fi defragment -c", regardless of what the
> filesystem is currently mounted with.
>
for individual files and directories, we can also set them compress via
FS_IOC_SETFLAGS.
thanks,
liubo
prev parent reply other threads:[~2011-12-29 12:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-29 10:51 Compession, on filesystem or volume? Remco Hosman
2011-12-29 11:11 ` Fajar A. Nugraha
2011-12-29 12:35 ` Liu Bo [this message]
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