On Thu, Mar 31, 2011 at 08:02:22AM -0400, Chris Mason wrote: > Excerpts from Christoph Hellwig's message of 2011-03-31 02:36:36 -0400: > > On Thu, Mar 31, 2011 at 12:00:11AM -0400, Larry D'Anna wrote: > > > This is a simple patch to allow reflinks to be made crossing subvolume > > > boundaries. > > > > NAK. subvolumes will have to become vfsmounts sooner or later, and we > > really must not support any operations spanning mountpoints. > > > > Sorry, I disagree here. reflinks were always intended to be able to > span subvolumes. There's no conflict at all because they span different > inodes.
I don't think it's a good idea to introduce any user visible operations over subvolume boundaries. Currently we don't have any operations over mount boundaries, which is pretty fumdamental to the unix filesystem semantics. If you want to change this please come up with a clear description of the semantics and post it to linux-fsdevel for discussion. That of course requires a clear description of the btrfs subvolumes, which is still completely missing. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
