All of lore.kernel.org
 help / color / mirror / Atom feed
From: Kai Krakow <hurikhan77+btrfs@gmail.com>
To: linux-btrfs@vger.kernel.org
Subject: btrfs mount flags
Date: Fri, 13 Apr 2012 17:50:45 +0200	[thread overview]
Message-ID: <jjul59-m49.ln1@hurikhan.ath.cx> (raw)

Hello!

Is there any documentation about btrfs mount flags wrt:

1. which flags are one-time options and are permanent,
2. which flags are global per btrfs partition,
3. which flags are local per subvolume mount?

I'm asking because while googling I found very confusing info about 
autodefrag. Some say it is a global flag, others say to get autodefrag one 
has to supply it for each subvolume mount to have autodefrag for that 
subvolume.

Then there's space_cache which is a one-time option and does not need to be 
given on successive mounts. Otoh there's inode_cache which I would expect to 
be handled the same but it doesn't look like it's implemented that way.

Then maybe there are flags which are obsolete meanwhile because they are 
default features with later kernel versions.

Thanks,
Kai


             reply	other threads:[~2012-04-13 15:50 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-13 15:50 Kai Krakow [this message]
2012-04-13 17:42 ` btrfs mount flags Duncan
2012-04-14 15:17   ` Kai Krakow
2012-04-15  5:53     ` Duncan
2012-04-15 10:00       ` Martin Steigerwald
2012-04-16  3:20         ` Duncan
2012-04-13 22:05 ` Martin Steigerwald

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=jjul59-m49.ln1@hurikhan.ath.cx \
    --to=hurikhan77+btrfs@gmail.com \
    --cc=linux-btrfs@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.