Re: unionfs status

Good work, thank you!

Tue, Mar 25, 2008 at 21:29 +0300 Alexander V. Chernikov:
Hello people!


At this moment unionfs has got at least following problems:
1) File systems cannot mount onto upper/lower unionfs layer (partially described in kern/117829)
2) There are problems with multithreaded programs accessing(writing) files on unionfs (kern/109950)
3) As well there are problems with accessing unix sockets created on upper/lower unionfs layers (kern/118346)
4) Doing mv filename same-filename causes kernel to panic on 6.X (and printing warning about VOP_RENAME in 7+)
5) Making 'loops' when mounting unionfs causes kernel panic (kern/121385)

I have made patches solving first 4 problems
These patches are available at http://ipfw.ru/patches/
unionfs2.diff fixes fs mounting onto upper layer, unionfs_lmount.diff fixes lower
unionfs_threads.diff and unionfs_unix.diff fixes cases 2) and 3)
unionfs_rename.diff fixes case with renaming

Can anybody comment/review ?

--
Alexander V. Chernikov
MELI-RIPE

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--
Cheers
Denis Barov
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Relevant Pages

  • unionfs status
    ... File systems cannot mount onto upper/lower unionfs layer ... I have made patches solving first 4 problems ... unionfs2.diff fixes fs mounting onto upper layer, ...
    (freebsd-current)
  • Re: unionfs status
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