similar to: [BUG] Reflinking fails for files >2GB on 32-bit platform

It''s been nearly a year since the patches needed to implement a reflinked copy between subvolumes have been posted (http://permalink.gmane.org/gmane.comp.file-systems.btrfs/9865 ) and I still get "Invalid cross-device link" error with Linux 3.2.4 while I try to do a cp --reflink between subvolumes. This is a *very* useful feature to have (think offline file-level

https://bugzilla.samba.org/show_bug.cgi?id=10170 Summary: rsync should support reflink similar to cp --reflink Product: rsync Version: 3.1.0 Platform: All OS/Version: All Status: NEW Severity: normal Priority: P5 Component: core AssignedTo: wayned at samba.org ReportedBy: samba at shubin.ca

It seems that the BTRFS_IOC_CLONE ioctl fails when trying to do a cross-subvolume clone of a file. Chris Mason suggested in the past ([1]) that this should be possible. Am I missing something? [1] http://kerneltrap.org/mailarchive/linux-btrfs/2010/6/10/6884911 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to

Please ignore the previous post. I have to correct myself, this is not a btrfs issue. In fact, the wrong (non 64 bit) calls have been used in the test program. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

Hi, i have some virtual machines running on logical volumes formatted with OCFS2. I'd like to snapshot the running guests to backup them easily afterwards. The files of the guests are big (100 - 300GB), but the content changes only slowly. So i thought that rsync would be a great benefit because it justs transfers the difference between the current file and the one backuped one day before. I

Hi, how can I do the following in a shell script: - check whether my file system supports cp --reflink? - check whether two files share the same data on disk, i.e. one has been created by cp --reflink of the other? Thank you! Thomas Koch -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info

Hellow, everyone I'm from HuaWei, China. We are looking for the candidate of virtualization platform among several vendors. Learned from Oracle people, the latest version of ocfs2 has integrated reflink feature which was commited to the the linux 2.6.32 kernel. But as we know, the sles11 integrated the linux 2.6.27 kernle, so the relink feature is not avaiable on the sles11 platform. We

In reflink we update the id info in the disk but forget to update the corresponding information in the VFS inode. So update them accordingly in case we want to preserve the attributes. Reported-by: Jeff Liu <jeff.liu at oracle.com> Signed-off-by: Tao Ma <tao.ma at oracle.com> --- fs/ocfs2/refcounttree.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git

Hi All, (retrying to post again - somehow message got blocked) I am running 3.2.7-1.fc16.x86_64 (latest FC 16 kernel) I posted regarding this problem earlier, but after some research and found improvement with new kernel version. so I decided to repost in a new thread to clean things up... The intention of this post is to hopefully be useful and point out some performance numbers that devs can

Hi all, following the thread about the BTRFS_IOC_TREE_SEARCH ioctl [1], I made a patch which try to address the problem of restarting the ioctl. In the current solution is the application during the restart of the search to fill the min_* fields in the "struct btrfs_ioctl_search_key". In general the values set are the last one returned "+1". But doing so we reduce the

Returns a file''s size on disk. Had been posted by Chris Ball over a year ago (http://article.gmane.org/gmane.comp.file-systems.btrfs/2873). Chris Mason suggested a couple of improvements back then, which I have implemented in this version: - use u64 to return the result - replaced the loop while (1) { struct btrfs_ordered_extent *ordered;

This testscript creates reflinks to files on different subvolumes, overwrites the original files and reflinks, and moves reflinked files between subvolumes. Originally submitted as testcase 302, changes are made based on comments from Eric: http://oss.sgi.com/archives/xfs/2013-03/msg00231.html Two new common/rc functions used in this script (_require_cp_reflink and _verify_reflink) have been

I am testing a Btrfs root file system with Debian (kernel 2.6.32) under KVM. jason@vrtl:~$ touch testfile jason@vrtl:~$ cp --reflink testfile /tmp cp: failed to clone `/tmp/testfile'': Invalid argument This is with GNU Coreutils 8.0 taken from debian Sid. Is this a Coreutils issue, a Btrfs problem or something in my local configuration? All the other issues that I have encountered so

Hello, This is the second attempt to bring in cross subvolume reflinks into btrfs. The first attempt was NAKed due to missing vfs mount checks and a clear description of what btrfs subvolumes are and probably also why cross subvolume reflinks are ok in the case of btrfs. This version of the patch comes from David and is in SUSE kernels since a long time, so it is tested and working. The patch

WayneD's clone-dest patch seems to be working for me, it's available here: https://github.com/WayneD/rsync-patches/blob/master/clone-dest.diff I've written some very basic tests, which I've attached to this email, in case they are of use to anyone else. They're also available here: https://github.com/josephmaher/rsync Notes: Tests need to be run as root.

This testscript creates reflinks to files on different subvolumes, overwrites the original files and reflinks, and moves reflinked files between subvolumes. Originally submitted as testcase 302, changes are made based on comments from Eric: http://oss.sgi.com/archives/xfs/2013-03/msg00231.html Two new common/rc functions used in this script (_require_cp_reflink and _verify_reflink) have been

On Thu, 27 Oct 2016 15:39:27 -0700, Jeremy Allison <jra at samba.org> wrote : > On Fri, Oct 28, 2016 at 12:08:50AM +0200, Saint Germain via samba > wrote: > > On Thu, 27 Oct 2016 14:50:48 -0700, Jeremy Allison <jra at samba.org> > > wrote : > > > > > > Server-side copy can be requested using smbclient, using > > > the "scopy"

From: Ajesh JS <ajesh.js@hp.com> This patch provides a mechanism to modify the permission of a subvolume in a btrfs file system This helps to apply a policy of having read-write subvolume inside a read-only subvolume. One use case is to have the whole root file system as a read-only subvolume and have /etc as a read-write subvolume inside. Signed-off-by: Ajesh JS <ajesh.js@hp.com>

On Fri, Oct 28, 2016 at 01:00:24AM +0200, Saint Germain via samba wrote: > > On Thu, 27 Oct 2016 15:39:27 -0700, Jeremy Allison <jra at samba.org> > wrote : > > > On Fri, Oct 28, 2016 at 12:08:50AM +0200, Saint Germain via samba > > wrote: > > > On Thu, 27 Oct 2016 14:50:48 -0700, Jeremy Allison <jra at samba.org> > > > wrote : > > >

An ioctl is needed to set compress flag (i.e. clear BTRFS_INODE_NOCOMPRESS flag) on per file basis. This patch adds that. Introduces a generic function to be used by subsequent patches. Signed-off-by: Amit Gud <gud@ksu.edu> Index: newformat2/fs/btrfs/ioctl.c =================================================================== --- newformat2.orig/fs/btrfs/ioctl.c +++