We want to have no fd events registered when we are idle.
In this patch, deal with the evtchn fd:
* Defer setup of the evtchn handle to the first use.
* Defer registration of the evtchn fd; register as needed on use.
* When cancelling an evtchn wait, or when wait setup fails, check
whether t
On Tue, 2014-12-09 at 15:54 +, Ian Jackson wrote:
> We want to have no fd events registered when we are idle.
> In this patch, deal with the evtchn fd:
>
> * Defer setup of the evtchn handle to the first use.
> * Defer registration of the evtchn fd; register as needed on use.
> * When cance
Ian Campbell writes ("Re: [PATCH 5/6] libxl: events: Deregister evtchn fd when
not needed"):
> There were other comments further down my original review which you
> haven't answered. I don't think they were (all) predicated on a
> particular answer to the first question (although some were).
Sorr
On Tue, 2014-12-09 at 11:22 +, Ian Jackson wrote:
> Ian Campbell writes ("Re: [PATCH 5/6] libxl: events: Deregister evtchn fd
> when not needed"):
> > On Fri, 2014-11-28 at 14:47 +, Ian Jackson wrote:
> > > libxl__ev_evtchn_* is always called with the ctx lock held.
> >
> > For the most p
Ian Campbell writes ("Re: [PATCH 5/6] libxl: events: Deregister evtchn fd when
not needed"):
> On Fri, 2014-11-28 at 14:47 +, Ian Jackson wrote:
> > libxl__ev_evtchn_* is always called with the ctx lock held.
>
> For the most part this is implicit due to the caller being in an ao
> callback,
On Fri, 2014-11-28 at 14:47 +, Ian Jackson wrote:
> Ian Campbell writes ("Re: [PATCH 5/6] libxl: events: Deregister evtchn fd
> when not needed"):
> > On Thu, 2014-11-27 at 18:27 +, Ian Jackson wrote:
> > > We want to have no fd events registered when we are idle.
> > > In this patch, deal
Ian Campbell writes ("Re: [PATCH 5/6] libxl: events: Deregister evtchn fd when
not needed"):
> On Thu, 2014-11-27 at 18:27 +, Ian Jackson wrote:
> > We want to have no fd events registered when we are idle.
> > In this patch, deal with the evtchn fd:
> >
> > * Defer setup of the evtchn handl
On Thu, 2014-11-27 at 18:27 +, Ian Jackson wrote:
> We want to have no fd events registered when we are idle.
> In this patch, deal with the evtchn fd:
>
> * Defer setup of the evtchn handle to the first use.
> * Defer registration of the evtchn fd; register as needed on use.
> * When cance
We want to have no fd events registered when we are idle.
In this patch, deal with the evtchn fd:
* Defer setup of the evtchn handle to the first use.
* Defer registration of the evtchn fd; register as needed on use.
* When cancelling an evtchn wait, or when wait setup fails, check
whether t
