Re: [RFC PATCH v2] target: tcmu: clean the nl_cmd of the udev when nl send fails

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To: Li Zhong <lizhongfs@xxxxxxxxx>
Subject: Re: [RFC PATCH v2] target: tcmu: clean the nl_cmd of the udev when nl send fails
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Wed, 07 Aug 2019 21:52:36 -0400
Cc: linux-scsi@xxxxxxxxxxxxxxx, target-devel@xxxxxxxxxxxxxxx, martin.petersen@xxxxxxxxxx, mchristi@xxxxxxxxxx
In-reply-to: <20190805004336.16181-1-lizhongfs@gmail.com> (Li Zhong's message of "Mon, 5 Aug 2019 08:43:36 +0800")
Organization: Oracle Corporation
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.92 (gnu/linux)

Li,

> If the userspace process crashes while we send the nl msg, it is
> possible that the cmd in curr_nl_cmd of tcmu_dev never gets reset to
> 0, and and returns busy for other commands after the userspace process
> is restartd.

Applied to 5.4/scsi-queue, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

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References:
- Re: [RFC PATCH] target: tcmu: clean the nl_cmd of the udev when nl send fails
  - From: Mike Christie
- [RFC PATCH v2] target: tcmu: clean the nl_cmd of the udev when nl send fails
  - From: Li Zhong

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