On Tue, Nov 8, 2022 at 7:53 PM Jeremy Allison via samba-technical <samba-technical@xxxxxxxxxxxxxxx> wrote: > > On Mon, Nov 07, 2022 at 10:47:48PM -0800, Christoph Hellwig wrote: > >On Mon, Nov 07, 2022 at 04:53:42PM -0800, Jeremy Allison via samba-technical wrote: > >> ret = ioctl(fsp_get_io_fd(dest_fsp), BTRFS_IOC_CLONE_RANGE, &cr_args); > >> > >> what ioctls are used for this in XFS ? > >> > >> We'd need a VFS module that implements them for XFS. > > > >That ioctl is now implemented in the Linux VFS and supported by btrfs, > >ocfs2, xfs, nfs (v4.2), cifs and overlayfs. > > I'm assuming it's this: > > https://man7.org/linux/man-pages/man2/ioctl_ficlonerange.2.html > > Yeah ? I'll write some test code and see if I can get it > into the vfs_default code. > Looks like this was already discussed during the work on generic implementation of FSCTL_SRV_COPYCHUNK: https://bugzilla.samba.org/show_bug.cgi?id=12033#c3 Forgotten? Left for later? Thanks, Amir.
