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[Dazuko-devel] DazukoFS 3.1.0-rc1 posted
From: |
John Ogness |
Subject: |
[Dazuko-devel] DazukoFS 3.1.0-rc1 posted |
Date: |
Sun, 28 Jun 2009 23:37:57 +0200 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux) |
Hi,
I spent last week at the LinuxTag 2009 conference in Berlin. There I
unexpectedly met up with Lino Sanfilippo. Together we had a great
hacking session and were able to tackle a lot of DazukoFS issues. Some
of these include:
- Finally handling mmap() cleanly! PROT_WRITE is now correctly
unsupported so applications can safely fallback to regular file IO.
- Fixed a bug when multiple stackable filesystems are stacked onto
each other. All other stackable filesystems also have this bug at
the moment. I plan to submit a patch to mainline to fix ecryptfs as
well.
- As suggested on LKML, we are now using the pid framework. This
should allow DazukoFS to work correctly with pid namespaces. (If you
use pid namespaces, I would greatly appreciate testing feedback.)
- Reading directories is now handled correctly. Until now you could
sometimes see "invalid argument" error messages when using the grep
tool. ecryptfs also has this problem. I plan to submit a patch to
mainline to fix ecryptfs as well.
- libdazukofs will now allow dazukofs_open() to be successful for a
read-only /dev/dazukofs.ctrl if the group already exists. This makes
it possible to run full on-access scanners _without_ever_ starting
the application as root.
Version 3.1.0-rc1 has been updated to support Linux 2.6.30. Right now
there are no other patches included to support other versions.
I had a blast at LinuxTag. Many thanks go out to Lino Sanfilippo for
the many great discussions, new ideas, and lots of hacking fun.
John Ogness
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