File caching while "oplocks=False", black magic or what?

[Jeremy Allison]

Yannis Tzavellas wrote:
> 
> NOTE: I have definitely put "oplocks=False" in my smb.conf.
> 
> I use a program running on 2 machines (win95 and win98) to access data on my samba server (samba 2.0.3-8, on Redhat 6.0). The programs, when accessing data on the server, go like this:
> 
> int get_record(..)           int put_record(..)
> {                            {
>   if (lock(...)) {             if (lock(...)) {
>     if (read(...)) {              if (write(...)) {
>       ....                           ...
>     } else ...                    } else ...
>   } else ...                    } else ...
> }                            }
> 
> i.e they simply lock the file and perform a read or write on it.
> 

Exactly *how* are you doing the "lock()" function in
the Linux code ?

You need to use fcntl locks in order for this to work.

Regards,

	Jeremy Allison,
	Samba Team.

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