Re: [PATCH -V14 04/11] vfs: Allow handle based open on symlinks

[Nick Piggin]

On Wed, Jul 07, 2010 at 11:23:31PM +0530, Aneesh Kumar K. V wrote:
> On Thu, 8 Jul 2010 02:57:19 +1000, Nick Piggin <npiggin@xxxxxxx> wrote:
> > I haven't followed this thread closely, so can you just go back
> > and explain to me why you need this? Ie. that you can't achieve with
> > a path-to-handle follow/nofollow option.
> 
> 
> We need to be able to read the link target using file handle. The exact
> usecase i have is with respect to implementing READLINK operation on a
> userspace NFS server. The request contain the file handle and the
> response include target name.

Fair point, could you include this stuff in your changelog? It may
help with other people reviewing it too who have not followed closely.

 
> Similarly we need to able to get file attribute based on file handle.
> I was using readlinkat and fstat to obtain both the above information
> using the descriptor returned by open_by_handle on a file handle
> representing symlink
> 
> -aneesh
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