Any FBSD Filesystem with Mandatory Locks?
Tom Judge
tom at tomjudge.com
Sat May 12 10:20:44 UTC 2007
Philippe Laquet wrote:
>
> Dear All,
>
> I a trying to get HAVP (it works almost well, great software!) but I
> also need to use the streaming option and it needs a FS mounted with
> mandatory locks. I did not found any option with UFS(2) and also tried
> with ext2fs loaded but the mount_ext2fs does not support "-o mand" ...
> Any idea?...
>
>
> My config : FBSD 6-STABLE
> GENERIC Kernel
> HAVP 0.85 (tuned makefile to compile the with STREAM function)
>
> Tried with :
> mdconfig -a -t malloc -s32m
> mount_ext2fs -o mand /dev/md0 /tmp/havp (the "mand" option is not
> recognized)
>
I don't think that FreeBSD has mandatory file locks, I believe that all
locks are advisory. I may be wrong but this is what the section on
file/descriptor locking in "The Design And Implementation of the FreeBSD
Operating System" seemed to suggest, this may have changed since 5.2 tho.
Tom
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