From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: [PATCH 5/6] libxl: events: Deregister evtchn fd
	when not needed
Date: Tue, 9 Dec 2014 15:56:58 +0000
Message-ID: <1418140618.19809.15.camel@citrix.com>
References: <1417112870-31894-1-git-send-email-ian.jackson@eu.citrix.com>
	<1418140489-21196-1-git-send-email-ian.jackson@eu.citrix.com>
	<1418140489-21196-6-git-send-email-ian.jackson@eu.citrix.com>
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To: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Jim Fehlig <jfehlig@suse.com>, xen-devel@lists.xensource.com
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On Tue, 2014-12-09 at 15:54 +0000, 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 cancelling an evtchn wait, or when wait setup fails, check
>    whether there are now no evtchn waits and if so deregister the fd.
>  * On libxl teardown, the evtchn fd should therefore be unregistered.
>    assert that this is the case.
> 
> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
> Release-Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Acked-by: Ian Campbell <ian.campbell@citrix.com>