linux-kernel - Re: [Ocfs2-devel] [PATCH] ocfs2: reflink deadlock when clone file to the same directory simultaneously

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Date:   Mon, 17 Oct 2022 09:51:14 +0800
From:   Joseph Qi <jiangqi903@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>, Gang He <ghe@...e.com>
Cc:     linux-kernel@...r.kernel.org, ocfs2-devel@....oracle.com
Subject: Re: [Ocfs2-devel] [PATCH] ocfs2: reflink deadlock when clone file to
 the same directory simultaneously

Hi Andrew,

On 10/17/22 7:29 AM, Andrew Morton via Ocfs2-devel wrote:
> On Thu, 26 Aug 2021 13:56:16 +0800 Gang He <ghe@...e.com> wrote:
> 
>> So, I will send a new patch to fix this deadlock problem via dlmglue layer.
>> For this patch, I want to change the patch comments as a reflink 
>> improvement patch.
> 
> Did this ever happen?  I've been sitting on this patch for ages.
> 
Looked back this thread, the root cause of deadlock seems to be the
asynchronous of fsdlm handling. So this is not a right fix.
While for the performance improvement, I need some test data as well.

Thanks,
Joseph