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Re: [Xen-devel] [PATCH for 4.5 v4 1/4] xen: add real time scheduler rtds

On 09/24/2014 02:32 PM, Jan Beulich wrote:
On 24.09.14 at 15:14, <dario.faggioli@xxxxxxxxxx> wrote:
On mer, 2014-09-24 at 13:09 +0100, Jan Beulich wrote:
Furthermore the function appears to lack serialization with other
scheduler operations.

Not sure what you mean here. There's only one lock serializing
everything in this scheduler, and it's already taken when this is
called, the only exception being when it's called from rt_alloc_vdata().

Is it that one you're referring to?
No. The call path do_domctl() -> sched_adjust() -> rt_dom_cntl()
doesn't take any scheduler related locks afaics.



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