[PATCHSET] support FSCTL_DUPLICATE_EXTENTS_TO_FILE

Thu May 4 15:54:41 UTC 2017

On Thu, 4 May 2017 08:40:00 -0700, Christoph Hellwig wrote:

> Not directly related to the patch, but IOC_CLONE_RANGE is a core
> VFS feature in Linux these days and for example support by XFS and NFS
> as well.  It's somewhat odd to have it in a vfs_btrfs module.

Yeah, this'll hopefully get moved out of vfs_btrfs soon. A WIP
syscall(SYS_copy_file_range) patch from Björn is available at:
https://lists.samba.org/archive/samba-technical/2017-January/118259.html

Cheers, David