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Date: Thu, 5 Jan 2017 08:47:42 +0100
From: Greg KH <greg@kroah.com>
To: Long Li <longli@exchange.microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>, devel@linuxdriverproject.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] hv: retry infinitely on hypercall transient failures
Message-ID: <20170105074742.GB4547@kroah.com>
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On Wed, Jan 04, 2017 at 06:12:20PM -0800, Long Li wrote:
> From: Long Li <longli@microsoft.com>
> 
> Hyper-v host guarantees that a hypercall will finish in reasonable time.
> Retry infinitely on transient failures to avoid returning error to upper layer.

Again, never retry "forever", always have a way out, otherwise you will
crash.

And again, why are you making this change?  What problem does it solve?

greg k-h