linux-kernel - RE: [PATCH 4/8] Drivers: hv: vmbus: Remove unnecessary channel->lock critical sections (sc

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Date:   Thu, 18 Jun 2020 15:29:39 +0000
From:   Michael Kelley <mikelley@...rosoft.com>
To:     "Andrea Parri (Microsoft)" <parri.andrea@...il.com>,
        KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>
CC:     "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 4/8] Drivers: hv: vmbus: Remove unnecessary channel->lock
 critical sections (sc_list readers)

From: Andrea Parri (Microsoft) <parri.andrea@...il.com>  Sent: Wednesday, June 17, 2020 9:47 AM
> 
> Additions/deletions to/from sc_list (as well as modifications of
> target_cpu(s)) are protected by channel_mutex, which hv_synic_cleanup()
> and vmbus_bus_suspend() own for the duration of the channel->lock
> critical section in question.
> 
> Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@...il.com>
> ---
>  drivers/hv/hv.c        | 3 ---
>  drivers/hv/vmbus_drv.c | 3 ---
>  2 files changed, 6 deletions(-)
> 

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