Re: [PATCH -V18 04/13] vfs: Allow handle based open on symlinks

Aneesh Kumar K. V
2010-08-20T02:13:35Z

On Fri, 20 Aug 2010 07:21:28 +0530, "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> wrote:
> The patch update may_open to allow handle based open on symlinks.
> The file handle based API use file descritor returned from open_by_handle_at
> to do different file system operations. To find the link target name we
> need to get a file descriptor on symlinks.
>
> We should be able to read the link target using file handle. The exact
> usecase is with respect to implementing READLINK operation on a
> userspace NFS server. The request contain the file handle and the
> response include target name.
>

If we don't do this, we will need new syscalls for doing stat, readlink
and link on symlinks that take file handle as the argument. If that is ok,
I can redo the patch series accordingly.

-aneesh