Re: Compression: per filesystem, or per subvolume?

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On Sun, May 8, 2011 at 8:38 PM, cwillu <cwillu@xxxxxxxxx> wrote:
> It's by not-implemented-yet.  Mount options are still currently global to
> the filesystem.

Thanks for the info. I was testing combination of grub2, btrfs "/"
without separate /boot, and lzo. Using lzo feels much faster compared
to zlib, so right now I just use separate /boot/grub in ext4 to make
it work correctly.

-- 
Fajar

>
> On May 8, 2011 7:35 AM, "Fajar A. Nugraha" <list@xxxxxxxxx> wrote:
>> Currently using Ubuntu Natty, kernel 2.6.38-9-generic, I have these
>> mount points using btrs subvolumes
>>
>> $ mount -t btrfs
>> /dev/sda2 on / type btrfs (rw,noatime,subvolid=256,compress-force=zlib)
>> /dev/sda2 on /home type btrfs (rw,noatime,subvolid=258,compress=lzo)
>>
>> Yet dmesg seems to show only zlib compression enabled
>> $ dmesg | grep btrfs
>> [ 11.097908] btrfs: force zlib compression
>>
>> Is this by design, or a bug?
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