From: Goffredo Baroncelli <kreijack@libero.it>
To: Bob Williams <linux@barrowhillfarm.org.uk>, linux-btrfs@vger.kernel.org
Subject: Re: A question about subvolumes
Date: Sat, 05 Jul 2014 08:27:48 +0200 [thread overview]
Message-ID: <53B79AE4.3030404@libero.it> (raw)
In-Reply-To: <53B7176F.1020409@barrowhillfarm.org.uk>
On 07/04/2014 11:06 PM, Bob Williams wrote:
> On 04/07/14 21:38, Goffredo Baroncelli wrote:
>
> Thank you, Goffredo. As the current /home/bob is not a subvolume, but
> a regular linux directory/folder, will the "cp --reflink" still carry
> the same speed advantage?
>
> In other words, using your example above, will this work:
>
> # cp --reflink -R normal_directory-A/* subvolume-B/
> # rm -rf normal_directory-A/
Yes.
If you want to move (or copy) files between subvolume, cp --reflink is faster.
I have to point out that the "--reflink" is only an internal detail. The two file are logically separated: if you after the copy change the source, the destination is unaffected.
>
>
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--
gpg @keyserver.linux.it: Goffredo Baroncelli (kreijackATinwind.it>
Key fingerprint BBF5 1610 0B64 DAC6 5F7D 17B2 0EDA 9B37 8B82 E0B5
next prev parent reply other threads:[~2014-07-05 6:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-04 14:38 A question about subvolumes Bob Williams
2014-07-04 20:38 ` Goffredo Baroncelli
2014-07-04 21:06 ` Bob Williams
2014-07-05 6:27 ` Goffredo Baroncelli [this message]
2014-07-05 11:43 ` Bob Williams
2014-07-05 16:06 ` Austin S Hemmelgarn
2014-07-05 23:49 ` Chris Samuel
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