[Lustre-devel] How can the name_to_handle() syscall benefit Lustre

James Simmons jsimmons at infradead.org
Mon Jan 31 08:52:36 PST 2011

> This is something that I think would be very useful for Lustre in conjunction with the Lustre MPI ADIO driver. The MPI rank-0 node
> could do the path traversal and generate a file handle via name_to_handle() and then MPI broadcast the file handle to all of the
> other MPI processes, which can use it to open the shared file. This could save many thousands of MDS RPCs to do path traversal for
> each client in a large MPI job. 

I thought the name_to_handle syscall idea was shot down? 
> Cheers, Andreas
> On 2011-01-29, at 12:16, Vilobh Meshram <vilobh.meshram at gmail.com> wrote:
>       Hi All,
> How can the name_to_handle() syscall benefit Lustre ?
> Any insights will be helpful.
> Thanks,
> Vilobh
> Graduate Research Associate
> Department of Computer Science
> The Ohio State University Columbus Ohio
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