[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH] libxl: make libxl_wait_for_device_model not racy



On Wed, 23 Jun 2010, Vincent Hanquez wrote:
> On 23/06/10 12:15, Stefano Stabellini wrote:
> > Hi all,
> > at the moment libxl_wait_for_device_model waits on a xenstore watch
> > before checking the current value of the xenstore node, that might
> > contain already the value the function was looking for.
> > This patch changes libxl_wait_for_device_model so that it checks the
> > value of the xenstore node first, then waits for the watch.
> >
> > Signed-off-by: Stefano Stabellini<stefano.stabellini@xxxxxxxxxxxxx>
> >    
> xenstore watch automatically fire one time when you install them for 
> this exact same purpose. Is this patch actually solving any issue you saw ?

No, it was just refactoring.

Are you sure that both xenstore implementations always do that?
Is this a "feature" we can safely rely on?
If both answers are positive, then we can disregard this patch.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.