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Re: [Xen-tools] Re: xenbus block device support

On 13 Aug 2005, at 05:23, Rusty Russell wrote:

(3) In future, xs transactions should probably be enhanced to have more
than one non-intersecting root.  Transactions have an explicit root
argument because we can implement transactions reasonably efficiently
without needing EAGAIN on commit.  They only have one root because that
was simple, but that means that the tools have to use "/domain" if they
want to set up front and backends simultaneously 8(

What do you have against EAGAIN?

If you need to deal with transaction failure anyway (out of memory, xenstored restarted, etc.) what would be so bad about having transactions fail due to conflicts?

I think that having to specify root(s) up front at transaction start is quite a shame.

 -- Keir

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