linux-kernel - Re: [PATCH v2 1/3] lightnvm: missing nvm

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Message-ID: <CACygaLDVxGCLaSowdzH8hAaWjso1bjsYuEaxUSD=DZNm4EsdSg@mail.gmail.com>
Date:	Sat, 28 Nov 2015 09:44:20 +0800
From:	Wenwei Tao <ww.tao0320@...il.com>
To:	Matias Bjørling <m@...rling.me>
Cc:	keith.busch@...el.com, axboe@...com, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org
Subject: Re: [PATCH v2 1/3] lightnvm: missing nvm_lock acquire

Hi Matiasl
Just to let you know this patch and previous version both cannot
address 'register device with supported manager may blocked while
holding the lock' issue.

2015-11-28 3:41 GMT+08:00 Matias Bjørling <m@...rling.me>:
> On 11/27/2015 01:04 PM, Wenwei Tao wrote:
>>
>> Hi Matias
>> Previous version patch miss acquire lock before find supported manager
>> in nvm_init().
>> And find supported manager code is duplicated in nvm_init() and
>> nvm_create_target(), we may move it into a function to make the code
>> more clean.
>> And find supported manager may blocked while holding the lock, this is
>> not good.
>>
>
> Ok, thanks. I'll pick this one up instead then.
>
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