From: Roman Mamedov <rm@romanrm.net>
To: "Konstantin V. Gavrilenko" <k.gavrilenko@arhont.com>
Cc: Linux fs Btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: btrfs subvolume mount with different options
Date: Sat, 13 Jan 2018 01:37:49 +0500 [thread overview]
Message-ID: <20180113013749.5338c057@natsu> (raw)
In-Reply-To: <20055256.49.1515779377187.JavaMail.gkos@dynomob>
On Fri, 12 Jan 2018 17:49:38 +0000 (GMT)
"Konstantin V. Gavrilenko" <k.gavrilenko@arhont.com> wrote:
> Hi list,
>
> just wondering whether it is possible to mount two subvolumes with different mount options, i.e.
>
> |
> |- /a defaults,compress-force=lza
You can have use different compression algorithms across the filesystem
(including none), via "btrfs properties" on directories or subvolumes. They
are inherited down the tree.
$ mkdir test
$ sudo btrfs prop set test compression zstd
$ echo abc > test/def
$ sudo btrfs prop get test/def compression
compression=zstd
But it appears this doesn't provide a way to apply compress-force.
> |- /b defaults,nodatacow
Nodatacow can be applied to any dir/subvolume recursively, or any file (as long as it's created but not
written yet) via chattr +C.
--
With respect,
Roman
next prev parent reply other threads:[~2018-01-12 20:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-12 17:49 btrfs subvolume mount with different options Konstantin V. Gavrilenko
2018-01-12 20:27 ` Timofey Titovets
2018-01-12 20:37 ` Roman Mamedov [this message]
2018-01-15 13:57 ` Konstantin V. Gavrilenko
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