[pnfs] Forcing delegations

[Iyer, Rahul]

Hi Bruce,
Thanks. This should work for me. 1 client opening a file for read (say 5
times in quick succession) followed by another client opening it for
write. This should trigger off the callback and test my code.
Thanks,
Regards
Rahul
 

> -----Original Message-----
> From: J. Bruce Fields [mailto:bfields at fieldses.org] 
> Sent: Thursday, April 19, 2007 7:13 PM
> To: Iyer, Rahul
> Cc: pnfs at linux-nfs.org
> Subject: Re: [pnfs] Forcing delegations
> 
> On Thu, Apr 19, 2007 at 02:25:11PM -0700, Iyer, Rahul wrote:
> > I'm refactoring some of the NFSv4 code to make it simpler 
> to add v4.1 
> > code. One of the things I'm doing is moving the call to
> > nfs_callback_up() outside nfs4_alloc_client. I wanted to 
> test this. Is 
> > there any way I could force the server to give me a write 
> delegation 
> > (by opening a file x times)
> 
> The server doesn't give out write delegations.  But it'll 
> usually give out a read delegation on the second open from 
> any client (as long as it comes within a lease period of the 
> first open, I think).
> 
> --b.
>