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From:   Michael Kelley <mikelley@microsoft.com>
To:     "Andrea Parri (Microsoft)" <parri.andrea@gmail.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     KY Srinivasan <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Wei Liu <wei.liu@kernel.org>,
        "linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
        Dexuan Cui <decui@microsoft.com>,
        Boqun Feng <boqun.feng@gmail.com>,
        vkuznets <vkuznets@redhat.com>
Subject: RE: [PATCH 08/11] Drivers: hv: vmbus: Remove the unused HV_LOCALIZED
 channel affinity logic
Thread-Topic: [PATCH 08/11] Drivers: hv: vmbus: Remove the unused HV_LOCALIZED
 channel affinity logic
Thread-Index: AQHWC6iynvnL0MG6OUCX2JGtkJaKI6hyxfWQ
Date:   Fri, 10 Apr 2020 19:32:24 +0000
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References: <20200406001514.19876-1-parri.andrea@gmail.com>
 <20200406001514.19876-9-parri.andrea@gmail.com>
In-Reply-To: <20200406001514.19876-9-parri.andrea@gmail.com>
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From: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Sent: Sunday, April=
 5, 2020 5:15 PM
>=20
> The logic is unused since commit 509879bdb30b8 ("Drivers: hv: Introduce
> a policy for controlling channel affinity").
>=20
> This logic assumes that a channel target_cpu doesn't change during the
> lifetime of a channel, but this assumption is incompatible with the new
> functionality that allows changing the vCPU a channel will interrupt.
>=20
> Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
> ---
>  drivers/hv/channel_mgmt.c | 105 +++++++++-----------------------------
>  include/linux/hyperv.h    |  27 ----------
>  2 files changed, 25 insertions(+), 107 deletions(-)
>=20

Reviewed-by: Michael Kelley <mikelley@microsoft.com>