> Hi,
> 
> I'm testing the new tmpfs (mounted at /tmp) and I notice that perldoc fails.  
> I've tracked it down to perl adding O_EXLOCK to its call to the perl function 
> sysopen (which appears to call open).  The sysopen call returns with the 
> error: "Operation not supported".  Am I correct in assuming that tmpfs does 
> not support O_EXLOCK?  If not, are there plans to add support in the future?

advisory locks are not supported at all.

as it's trivial, i guess someone will add it soon. :-)

YAMAMOTO Takashi