linux-kernel - Re: 答复: 答复: 【外部邮件!】Re: [PATCH v2] ceph: fix deadlock in ceph_readdir

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Message-ID: <ebc291d2ae5cb3702f67831dd1da932d66177ae2.camel@ibm.com>
Date: Wed, 7 Jan 2026 19:59:46 +0000
From: Viacheslav Dubeyko <Slava.Dubeyko@....com>
To: "lilei24@...ishou.com" <lilei24@...ishou.com>
CC: Alex Markuze <amarkuze@...hat.com>,
        "idryomov@...il.com"
	<idryomov@...il.com>,
        "sunzhao03@...ishou.com" <sunzhao03@...ishou.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "ceph-devel@...r.kernel.org" <ceph-devel@...r.kernel.org>
Subject: Re:  答复:  答复: 【外部邮件!】Re:  [PATCH v2] ceph: fix deadlock in ceph_readdir_prepopulate

On Wed, 2026-01-07 at 16:01 +0000, 李磊 wrote:
> Hi Slava,
> 
> This issue is very rare on our internal cephfs clusters. We had only encountered it for about three times.
> But we are working on same hacking methods to speed up the reproduction. I think it will take me one week
> if everything goes smoothly and I will share the methods here.
> 
> To be honest, this patch should be a revert patch of this one:
> 
> commit : bca9fc14c70fcbbebc84954cc39994e463fb9468
> ceph: when filling trace, call ceph_get_inode outside of mutexes
> 
> I'll resend this patch later.

Sounds good. If I remember correctly, the main issue with the initial patch was
the commit message that didn't have good explanation of the issue and why this
revert can fix the issue. So, if we have all of these details in the commit
message, then the patch should be in good shape.

Thanks,
Slava.