Messages in this thread | | | Date | Fri, 5 Dec 2003 11:22:01 +0000 (GMT) | From | Anton Altaparmakov <> | Subject | Re: Is there a "make hole" (truncate in middle) syscall? |
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On Thu, 4 Dec 2003, Andy Isaacson wrote: > On Thu, Dec 04, 2003 at 02:32:23PM -0600, Rob Landley wrote: > I'm curious -- does NTFS implement sparse files? Does the Win32 API > provide any way to manipulate them? Does the NT kernel have any sparse > file handling?
Yes it does. The new NTFS Linux driver has full support for sparse files as does Windows of course.
Windows does provide a function which is just "make hole". It takes starting offset and length (or was it ending offset instead of length, can't remember) and makes this sparse (obviously aligning to cluster boundaries, etc).
Best regards,
Anton -- Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @) Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK Linux NTFS maintainer / IRC: #ntfs on irc.freenode.net WWW: http://linux-ntfs.sf.net/ & http://www-stu.christs.cam.ac.uk/~aia21/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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