Re: [PATCH/RFC] Lustre VFS patch

[Arjan van de Ven]

On Mon, 2004-05-24 at 14:08, hch@xxxxxxxxxxxxx wrote:
> > vfs-raw_ops-vanilla-2.6.patch
> > 
> >   This adds raw operations for setattr, mkdir, rmdir, mknod, unlink,
> >   symlink, link and rename.  The raw operations look up the parent
> >   directories (but not leaf nodes) involved in the operation and then
> >   ask the file system to execute the operation.  These methods allow
> >   us to delegate the execution of these functions to the server, and
> >   instantiate no dentries for leaf nodes, leaf nodes will only enter
> >   the dcache on subsequent lookups.  This patch dramatically
> >   simplifies the client/server lock management, particularly for
> >   rename.
> >  
> >   In Ottawa Linus suggested that we could maybe do this with intents
> >   instead.  I feel that both are ugly, both are possible but intents
> >   looked akward.
> 
> 
> This is complete crap.  We don't want to methods for every namespace
> operation.  

fun question: how does it deal with say a rename that would span mounts
on the client but wouldn't on the server? :)

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