On Fri, Apr 20, 2012 at 12:22:11PM +0300, Avi Kivity wrote: > On Fri, Apr 20, 2012 at 12:12 PM, David Sterba <[email protected]> wrote: > > On Fri, Apr 20, 2012 at 11:19:39AM +0300, Avi Kivity wrote: > >> /dev/mapper/luks-blah / btrfs > >> subvol=/rootvol 1 1 > >> /dev/mapper/luks-blah /var/lib/libvirt/images btrfs > >> nodatasum,nodatacow,subvol=/images.libvirt 1 2 > > > > what does /proc/mounts say about the applied options? do you see > > nodatasum and nodatacow there? afaik most (if not all) mount options > > affect the whole filesystem including any subvolume mounts. having > > per-subvol options is possible, just not implemented. > > > > Nothing, the options don't show up there. > > Are there plans to allow per-subvolume nodatasum/nodatacow?
It can be set on a per file basis, let me push out a commit to btrfs progs with ioctls to set it. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
