[Xen-devel] Re: [PATCH] libxl: remove console 0 backend directory from xenstore on devices destroy

[Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>]

On Mon, 2010-10-04 at 14:21 +0100, Ian Campbell wrote:
> # HG changeset patch
> # User Ian Campbell <ian.campbell@xxxxxxxxxx>
> # Date 1286198484 -3600
> # Node ID d59be7a8e1e3bc439bb01a0f89d43411210fedcb
> # Parent  1cae52330eebbe448586c0a173945bc2bf8d631f
> libxl: remove console 0 backend directory from xenstore on devices destroy
> 
> The is (deliberately) no frontend directory for console 0 in
> xenstore. Therefore to avoid leaking
> /local/domain/0/backend/console/$domid/0 check explicitly for this
> backend directory and remove.

Thinking about this some more it might be preferable to
write /local/domain/domid/console/{backend,backend-id} giving us a
concrete pointer to the backend we wish to destroy, this would cope
better with console backends in dom!=0 too.

I'm assuming its not a mistake that the backend exists in the first
place?

Ian.


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