Re: [coLinux-users] unionfs in colinux?

[Henry N. <Hen...@Ar...>]

Hello Marwan,

Marwan Al-Sabbagh wrote:
>>  We have tried the module on Debian 4. We have build coLinux kernel
>>  2.6.22.18 with unionfs patch 2.6.22.19. But it crashes the Kernel. The
>>  minor differ version from .18 to .19 versions should not the problem.
>>
>>  David Kaufman wrote to me offlist:
>>  >  sudo su -
>>  >  modprobe unionfs
>>  >  mkdir fruits vegies healthy
>>  >  touch fruits/apple vegies/carrot
>>  >  echo "I am a fruit" > fruits/tomato
>>  >  echo "I am a vegetable" > vegies/tomato
>>  >  mount -t unionfs -o dirs=/root/fruits:/root/vegies \
>>  >    none /root/healthy
>>  >  dir healthy        # works!
>>  >  cat healthy/apple  # doesn't crash
>>  >  cat healthy/tomato # should print: "I am a fruit"
>>  >                     # (but crashes colinux instead) :-)
>
> Hi Henry,
>   I used the following files/versions:
> 
> http://downloads.sourceforge.net/colinux/coLinux-0.7.2-src.tar.gz
> http://download.filesystems.org/unionfs/unionfs-2.x/unionfs-2.2.4_for_2.6.22.18.diff.gz
> http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.22.tar.bz2
> 
>   I used coLinux 0.7.2 source, it used the 2.6.22 kernel by default,
> the closest patch to that was unionfs-2.2.4_for_2.6.22.18.diff. Now I
> did run a diff between Linux 2.6.22.18 and 2.6.22, and I confirmed
> that none of the files patched by unionfs had changed significantly.

Many thanks. Your code sems me better. There exist a new function
"unionfs_file_revalidate_locked" and the "verify_locked" was removed :-)

I will try the patch unionfs-2.2.4_for_2.6.22.18.diff.gz now.

-- 
Henry N.