From: Christoph Hellwig <hch@lst.de>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com, darrick.wong@oracle.com
Subject: Re: [RFC] allow enabling reflinks at runtime
Date: Wed, 8 Jun 2016 09:11:30 +0200 [thread overview]
Message-ID: <20160608071130.GB24663@lst.de> (raw)
In-Reply-To: <20160602225415.GP12670@dastard>
On Fri, Jun 03, 2016 at 08:54:15AM +1000, Dave Chinner wrote:
> On Thu, Jun 02, 2016 at 04:19:07PM +0200, Christoph Hellwig wrote:
> > I've had some vocal user requests to allow enabling reflinks at run time,
> > which happens to be a mostly trivial feature. The only caveat is that we
> > need a large enough log size to support the reflink requirements, but for
> > typical large file systems that's not an issue.
>
> Hmmm - how does this interact with all the rmap code? I was not
> planning on enabling reflink without rmap and vice versa simply
> because it makes the validation and testing matrix vastly more
> complex.
Uh. So far I've only been testing pure reflink code, mostly because
rmap really doesn't buy much for the use case I'm working on.
Enabling rmap post-mkfs is defintively a different ballpark, and probably
not worth it even if it would be doable.
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
next prev parent reply other threads:[~2016-06-08 7:11 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-02 14:19 [RFC] allow enabling reflinks at runtime Christoph Hellwig
2016-06-02 14:19 ` [PATCH 1/3] xfs: add xfs_mp_hasreflink Christoph Hellwig
2016-06-02 14:19 ` [PATCH 2/3] xfs: refactor xfs_refcountbt_alloc_block Christoph Hellwig
2016-06-02 14:19 ` [PATCH 3/3] xfs: add an option to enable reflinks at mount time Christoph Hellwig
2016-06-06 11:23 ` Carlos Maiolino
2016-06-06 11:29 ` Carlos Maiolino
2016-06-06 16:52 ` Darrick J. Wong
2016-06-08 7:04 ` Christoph Hellwig
2016-06-08 8:07 ` Carlos Maiolino
2016-06-08 8:10 ` Carlos Maiolino
2016-06-09 22:57 ` Dave Chinner
2016-06-02 22:54 ` [RFC] allow enabling reflinks at runtime Dave Chinner
2016-06-03 1:58 ` Darrick J. Wong
2016-06-06 18:52 ` Darrick J. Wong
2016-06-08 7:10 ` Christoph Hellwig
2016-06-08 7:11 ` Christoph Hellwig [this message]
2016-06-09 17:45 ` Darrick J. Wong
2016-06-09 23:33 ` Dave Chinner
2016-07-13 5:36 ` Darrick J. Wong
2016-10-26 20:49 ` Darrick J. Wong
2016-11-03 16:10 ` Christoph Hellwig
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=20160608071130.GB24663@lst.de \
--to=hch@lst.de \
--cc=darrick.wong@oracle.com \
--cc=david@fromorbit.com \
--cc=xfs@oss.sgi.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).