Messages in this thread | | | Date | Thu, 25 Nov 2010 11:32:59 +0100 | From | Tomasz Torcz <> | Subject | Re: VFS support for fast copy on deduplicating FSes |
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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: zdzichubg@chrome.pl in the afternoon and evening." - Alan Cox
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