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Date: Tue, 2 Dec 2014 11:11:18 +0000
From: David Vrabel <david.vrabel@citrix.com>
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To: "Luis R. Rodriguez" <mcgrof@suse.com>,
        David Vrabel <david.vrabel@citrix.com>
CC: Juergen Gross <jgross@suse.com>, Joerg Roedel <jroedel@suse.de>,
        <kvm@vger.kernel.org>, Davidlohr Bueso <dbueso@suse.de>,
        Peter Zijlstra <peterz@infradead.org>, <x86@kernel.org>,
        Oleg Nesterov <oleg@redhat.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Jan Beulich <JBeulich@suse.com>, <xen-devel@lists.xenproject.org>,
        <boris.ostrovsky@oracle.com>, Borislav Petkov <bp@suse.de>,
        Olaf Hering <ohering@suse.de>, Ingo Molnar <mingo@kernel.org>
Subject: Re: [Xen-devel] [PATCH] xen: privcmd: schedule() after private	hypercall
 when non CONFIG_PREEMPT
References: <1417040805-15857-1-git-send-email-mcgrof@do-not-panic.com>	<5476C66F.5040308@suse.com> <20141127183616.GV25677@wotan.suse.de>	<547C4CEF.1010603@citrix.com>	<20141201150546.GC25677@wotan.suse.de>	<547C86BF.2040705@citrix.com>	<CAB=NE6WPvCJnAfdbZqcw5pJtZrfxo0zQu6J2gpXp69G-UTtiUg@mail.gmail.com>	<547C8F30.1010306@citrix.com>	<20141201161905.GH25677@wotan.suse.de>	<547CB07C.1050507@citrix.com> <20141201223611.GM25677@wotan.suse.de>
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On 01/12/14 22:36, Luis R. Rodriguez wrote:
> 
> Then I do agree its a fair analogy (and find this obviously odd that how
> widespread cond_resched() is), we just don't have an equivalent for IRQ
> context, why not avoid the special check then and use this all the time in the
> middle of a hypercall on the return from an interrupt (e.g., the timer
> interrupt)?

http://lists.xen.org/archives/html/xen-devel/2014-02/msg01101.html

David
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