Lustre discuss - May 2011 - Information regarding the FILE HANDLE

Hi,

I was wondering in which part/structure of the code the file handle
information is present in Lustre. Can somebody please point me to it ?

I tried looking up in the code but couldn''t exactly make it out.

Is File handle part of EA i.e. the extended attributes ?

Thanks,
Vilobh
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.lustre.org/pipermail/lustre-discuss/attachments/20110526/8738e4f8/attachment.html

Hello!

On May 26, 2011, at 3:13 AM, vilobh meshram wrote:
> I was wondering in which part/structure of the code the file handle
information is present in Lustre. Can somebody please point me to it ?
> 
> I tried looking up in the code but couldn''t exactly make it out.
> 
> Is File handle part of EA i.e. the extended attributes ?
There are multiple things that could be called file handle, so it would be great
if you explain a little bit
about what is it you are actually looking for.

Bye,
    Oleg
--
Oleg Drokin
Senior Software Engineer
Whamcloud, Inc.

Hi Oleg,

Thanks for the reply.

What is equivalent of the NFS File handle in Lustre ?

Can you give me example of few of the multiple things that could be called
as a File handle.

Thanks,
Vilobh

On Thu, May 26, 2011 at 4:30 PM, Oleg Drokin <green at whamcloud.com>
wrote:
> Hello!
>
> On May 26, 2011, at 3:13 AM, vilobh meshram wrote:
>
> > I was wondering in which part/structure of the code the file handle
> information is present in Lustre. Can somebody please point me to it ?
> >
> > I tried looking up in the code but couldn''t exactly make it
out.
> >
> > Is File handle part of EA i.e. the extended attributes ?
>
> There are multiple things that could be called file handle, so it would be
> great if you explain a little bit
> about what is it you are actually looking for.
>
> Bye,
>    Oleg
> --
> Oleg Drokin
> Senior Software Engineer
> Whamcloud, Inc.
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.lustre.org/pipermail/lustre-discuss/attachments/20110526/01a5698c/attachment.html

Hello!

   Well, the closest to nfs fh is probably lustre FID. (inode inum and
generation in 1.8).

   Multiple things are: the open handle returned by MDS open, the FIDs, the nfs
file handle constructed by lustre_nfs layer, the file descriptors returned from
open(2), ...

Bye,
    Oleg
On May 26, 2011, at 7:31 PM, vilobh meshram wrote:
> Hi Oleg,
> 
> Thanks for the reply.
> 
> What is equivalent of the NFS File handle in Lustre ?
> 
> Can you give me example of few of the multiple things that could be called
as a File handle.
> 
> Thanks,
> Vilobh
> 
> On Thu, May 26, 2011 at 4:30 PM, Oleg Drokin <green at whamcloud.com>
wrote:
> Hello!
> 
> On May 26, 2011, at 3:13 AM, vilobh meshram wrote:
> 
> > I was wondering in which part/structure of the code the file handle
information is present in Lustre. Can somebody please point me to it ?
> >
> > I tried looking up in the code but couldn''t exactly make it
out.
> >
> > Is File handle part of EA i.e. the extended attributes ?
> 
> There are multiple things that could be called file handle, so it would be
great if you explain a little bit
> about what is it you are actually looking for.
> 
> Bye,
>    Oleg
> --
> Oleg Drokin
> Senior Software Engineer
> Whamcloud, Inc.
> 
> 
--
Oleg Drokin
Senior Software Engineer
Whamcloud, Inc.