Re: [PATCH -V8 2/9] vfs: Add name to file handle conversion support

From: Aneesh Kumar K. V
Date: Tue May 18 2010 - 02:58:38 EST

On Tue, 18 May 2010 15:18:28 +0900, "J. R. Okajima" <hooanon05@xxxxxxxxxxx> wrote:
> "Aneesh Kumar K. V":
> > The file_handle I mentioned above is the file handle returned by
> > sys_name_to_handle_at syscall. NFS kernel server won't be using the
> > interface.
> Thanx clarifying.
> I think I should read the notes in the first description (0/9) before
> posting.
> It says UUID is just for userspace.
> Reading all 9 patches, I noticed handle_to_path() calls
> exportfs_decode_fh() inconditionally.
> Since exportfs_decode_fh() calls s_export_op->fh_to_dentry()
> inconditionally too, handle_to_path() will crash when the target FS
> doesn't support NFS-exporting, won't it?

I guess we should fix exprtfs_decode_fh to return -ESTALE if
fh_to_dentry is NULL

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