Re: Cross subvolume "cp --reflink"?

On Wed, Oct 19, 2016 at 12:52 PM, Andrei Borzenkov wrote: > I get "Failed to clone: Invalid cross-device link". Is it expected? Yes, you cannot cross a MOUNTPOINT boundary with reflink. Or, for that matter, btrfs subvolume snapshot. > Basically this is (on openSUSE TW which

Re: Cross subvolume "cp --reflink"?

19.10.2016 20:04, Hugo Mills пишет: > On Wed, Oct 19, 2016 at 07:52:14PM +0300, Andrei Borzenkov wrote: >> I get "Failed to clone: Invalid cross-device link". Is it expected? >> Basically this is (on openSUSE TW which has root on subvolume) >> >> mount -o subvol=/ /dev/vda1 /mnt >> btrfs sub

Re: Cross subvolume "cp --reflink"?

On Wed, Oct 19, 2016 at 07:52:14PM +0300, Andrei Borzenkov wrote: > I get "Failed to clone: Invalid cross-device link". Is it expected? > Basically this is (on openSUSE TW which has root on subvolume) > > mount -o subvol=/ /dev/vda1 /mnt > btrfs sub create /mnt/var/cache > cp -a --reflink=always

Cross subvolume "cp --reflink"?

I get "Failed to clone: Invalid cross-device link". Is it expected? Basically this is (on openSUSE TW which has root on subvolume) mount -o subvol=/ /dev/vda1 /mnt btrfs sub create /mnt/var/cache cp -a --reflink=always /var/cache/* /mnt/var/cache Kernel 4.7.5-1-default. -- To unsubscribe from

Re: cross-subvolume cp --reflink

On Thu, Aug 16, 2012 at 5:41 PM, james northrup northrup.ja...@gmail.com wrote: dunno if this thread is dead, but im inclined to patch in cp --reflink to fdupes prog. It currently does provide a poor-man's dedupe via md5sum and hardlink, or delete. all the better if the distro-kernels

Re: cross-subvolume cp --reflink

On Mon, Aug 20, 2012 at 11:08 AM, Jérôme Poulin jeromepou...@gmail.com wrote: On Thu, Aug 16, 2012 at 5:41 PM, james northrup northrup.ja...@gmail.com wrote: dunno if this thread is dead, but im inclined to patch in cp --reflink to fdupes prog. It currently does provide a poor-man's

Re: cross-subvolume cp --reflink

On Sun, Aug 19, 2012 at 12:08:01AM -0500, Mitch Harder wrote: On Fri, Aug 17, 2012 at 12:20 AM, Marc MERLIN m...@merlins.org wrote: On Thu, Aug 16, 2012 at 09:20:00PM -0700, james northrup wrote: dunno if this thread is dead, but im inclined to patch in cp --reflink to fdupes prog. It

Re: cross-subvolume cp --reflink

On Fri, Aug 17, 2012 at 12:20 AM, Marc MERLIN m...@merlins.org wrote: On Thu, Aug 16, 2012 at 09:20:00PM -0700, james northrup wrote: dunno if this thread is dead, but im inclined to patch in cp --reflink to fdupes prog. It currently does provide a poor-man's dedupe via md5sum and hardlink,

Re: cross-subvolume cp --reflink

dunno if this thread is dead, but im inclined to patch in cp --reflink to fdupes prog. It currently does provide a poor-man's dedupe via md5sum and hardlink, or delete. all the better if the distro-kernels can backport cross-snapshot reflinks sooner than later. On Sun, Apr 29, 2012 at 1:05 PM,

Re: cross-subvolume cp --reflink

On Thu, Aug 16, 2012 at 09:20:00PM -0700, james northrup wrote: dunno if this thread is dead, but im inclined to patch in cp --reflink to fdupes prog. It currently does provide a poor-man's dedupe via md5sum and hardlink, or delete. all the better if the distro-kernels can backport

Re: cross-subvolume cp --reflink

Am 29.04.2012, 01:53 Uhr, schrieb Hubert Kario h...@qbs.com.pl: On Sunday 01 of April 2012 11:42:23 Jérôme Poulin wrote: On Sun, Apr 1, 2012 at 11:27 AM, Norbert Scheibner s...@gmx.net wrote: Some users tested this patch successfully for week,s or months in 2 or 3 kernel versions since

Re: cross-subvolume cp --reflink

On Sunday 01 of April 2012 11:42:23 Jérôme Poulin wrote: On Sun, Apr 1, 2012 at 11:27 AM, Norbert Scheibner s...@gmx.net wrote: Some users tested this patch successfully for week,s or months in 2 or 3 kernel versions since then, true? If this feature must be implented in VFS in another

Re: cross-subvolume cp --reflink

On Sun, Apr 01, 2012 at 10:27:38PM +0300, Konstantinos Skarlatos wrote: thats true, cp --reflink is much better. Also am I wrong that btrfs has a limitation on the number of hard links that can only be fixed with a disk format change? There's patch in development to lift the limit and it

cross-subvolume cp --reflink

Glück Auf! I know its been discussed more then ones, but as a user I really would like to see the patch for allowing this in the kernel. Some users tested this patch successfully for weeks or months in 2 or 3 kernel versions since then, true? I'd say by creating a snapshot, it's nothing else

Re: cross-subvolume cp --reflink

On: Sun, 01 Apr 2012 18:30:13 +0300 Konstantinos Skarlatos wrote +1 from me too, i would save enormous amounts of space with a patch like that, at least until dedupe is implemented. We could call it poor man's dedupe That's my point. This poor man's dedupe would solve my problems here very

Re: cross-subvolume cp --reflink

On: Sun, 01 Apr 2012 19:45:13 +0300 Konstantinos Skarlatos wrote That's my point. This poor man's dedupe would solve my problems here very well. I don't need a zfs-variant of dedupe. I can implement such a file-based dedupe with userland tools and would be happy. do you have any scripts

Re: cross-subvolume cp --reflink

On Κυριακή, 1 Απρίλιος 2012 8:07:54 μμ, Norbert Scheibner wrote: On: Sun, 01 Apr 2012 19:45:13 +0300 Konstantinos Skarlatos wrote That's my point. This poor man's dedupe would solve my problems here very well. I don't need a zfs-variant of dedupe. I can implement such a file-based dedupe

Re: cross-subvolume cp --reflink

as it. So no, I'd rather want the patch to allow cross-subvolume cp --reflink in the kernel and I will wait for that to happen. Greetings Norbert -- To unsubscribe from this list: send the line unsubscribe linux-btrfs in the body of a message to majord...@vger.kernel.org More majordomo info at http

Re: cross-subvolume cp --reflink

at the first sight and can not be copied as it. So no, I'd rather want the patch to allow cross-subvolume cp --reflink in the kernel and I will wait for that to happen. Greetings Norbert -- To unsubscribe from this list: send the line unsubscribe linux-btrfs in the body of a message to majord

Re: cross-subvolume cp --reflink

On 1/4/2012 9:11 μμ, Norbert Scheibner wrote: On: Sun, 01 Apr 2012 20:19:24 +0300 Konstantinos Skarlatos wrote I use btrfs for my backups. Ones a day I rsync --delete --inplace the complete system to a subvolume, snapshot it, delete some tempfiles in the snapshot. In my setup I rsync