Any FBSD Filesystem with Mandatory Locks?

[Philippe Laquet]

Tom Judge a écrit :
> 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
>
OK - Thanks Tom, I will take a look on it, I think that HAVP was first 
developped on and for GNU/Linux, that may explain the need of a 
Mandatory (derived from SysV?) locks... I am currently looking on the 
source code of HAVP and check is a FreeBSD Patch could be done.

Kind Regards,