linux-kernel - Re: [PATCH v2] kvm/x86: Inform RCU of quiescent state when entering guest mode

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Message-ID: <1531342492.8759.90.camel@infradead.org>
Date:   Wed, 11 Jul 2018 21:54:52 +0100
From:   David Woodhouse <dwmw2@...radead.org>
To:     paulmck@...ux.vnet.ibm.com,
        Christian Borntraeger <borntraeger@...ibm.com>
Cc:     peterz@...radead.org, mhillenb@...zon.de,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH v2] kvm/x86: Inform RCU of quiescent state when
 entering guest mode

On Wed, 2018-07-11 at 13:27 -0700, Paul E. McKenney wrote:
> 
> Something like this, on top of the earlier patch?  I am not at all
> confident of this patch because there might be other entry/exit
> paths I am missing.  Plus there might be RCU uses on the arch-
> specific patch to and from the guest OS.

That was going to be my starting point, yes. With some additional
manual review and testing to cover the "not at all confident" part. :)

Thanks.
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