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.
