linux-kernel - Re: [PATCH v2] tools/hv: terminate fcopy daemon if read from uio fails

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Message-ID: <Z1P-_H6PuXopLmnr@liuwe-devbox-debian-v2>
Date: Sat, 7 Dec 2024 07:53:32 +0000
From: Wei Liu <wei.liu@...nel.org>
To: Olaf Hering <olaf@...fle.de>,
	g@...we-devbox-debian-v2.smtp.subspace.kernel.org
Cc: linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org,
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>
Subject: Re: [PATCH v2] tools/hv: terminate fcopy daemon if read from uio
 fails

On Tue, Nov 05, 2024 at 09:14:04AM +0100, Olaf Hering wrote:
> Terminate endless loop in reading fails, to avoid flooding syslog.
> 
> This happens if the state of "Guest services" integration service
> is changed from "enabled" to "disabled" at runtime in the VM
> settings. In this case pread returns EIO.
> 
> Also handle an interrupted system call, and continue in this case.
> 
> Signed-off-by: Olaf Hering <olaf@...fle.de>

Applied to hyperv-fixes. Thanks.