On Thu, Nov 25, 2010 at 04:19:17AM -0600, David Nicol wrote: > unresearched question/suggestion: > > Is there general support for a "fast copy" ioctl in the VFS layer, > which would be hooked by file systems that support COW or other forms > of deduplication and can provide copy semantics by manipulating > metadata only? >
Yes, see reflink(2) syscall (http://lwn.net/Articles/331576/). -- Tomasz Torcz "Funeral in the morning, IDE hacking xmpp: zdzich...@chrome.pl in the afternoon and evening." - Alan Cox -- 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
