From: Hannes Reinecke <hare@suse.de>
To: Chao Leng <lengchao@huawei.com>, Sagi Grimberg <sagi@grimberg.me>,
Daniel Wagner <dwagner@suse.de>
Cc: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
Jens Axboe <axboe@fb.com>, Keith Busch <kbusch@kernel.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2] nvme-multipath: Early exit if no path is available
Date: Mon, 1 Feb 2021 09:57:22 +0100 [thread overview]
Message-ID: <47a1b796-9d91-5947-4bac-dd8f397041a3@suse.de> (raw)
In-Reply-To: <aebc6c2d-4711-95ba-daf2-1cd17fc6f0e7@huawei.com>
On 2/1/21 9:47 AM, Chao Leng wrote:
>
>
> On 2021/2/1 15:29, Hannes Reinecke wrote:[ .. ]
>> Urgh. Please, no. That is well impossible to debug.
>> Can you please open-code it to demonstrate where the difference to the
>> current (and my fixed) versions is?
>> I'm still not clear where the problem is once we applied both patches.
> For example assume the list has three path, and all path is not
> NVME_ANA_OPTIMIZED:
> head->next = ns1;
> ns1->next = ns2;
> ns2->next = head;
> old->next = ns2;
>
And this is where I have issues with.
Where does 'old' come from?
Clearly it was part of the list at one point; so what happened to it?
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
next prev parent reply other threads:[~2021-02-01 8:58 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-27 10:30 [PATCH v2] nvme-multipath: Early exit if no path is available Daniel Wagner
2021-01-27 10:34 ` Hannes Reinecke
2021-01-27 16:49 ` Christoph Hellwig
2021-01-28 1:31 ` Chao Leng
2021-01-28 7:58 ` Daniel Wagner
2021-01-28 9:18 ` Chao Leng
2021-01-28 9:23 ` Hannes Reinecke
2021-01-29 1:18 ` Chao Leng
2021-01-28 9:40 ` Daniel Wagner
2021-01-29 1:23 ` Chao Leng
2021-01-29 1:42 ` Sagi Grimberg
2021-01-29 3:07 ` Chao Leng
2021-01-29 3:30 ` Sagi Grimberg
2021-01-29 3:36 ` Chao Leng
2021-01-29 7:06 ` Hannes Reinecke
[not found] ` <81b22bbf-4dd3-6161-e63a-9699690a4e4f@huawei.com>
[not found] ` <715dd943-0587-be08-2840-e0948cf0bc62@suse.de>
[not found] ` <eb131d8f-f009-42e7-105d-58b84060f0dd@huawei.com>
[not found] ` <ac019690-7f02-d28c-ed58-bfc8c1d48879@suse.de>
2021-02-01 2:16 ` Chao Leng
2021-02-01 7:29 ` Hannes Reinecke
2021-02-01 8:47 ` Chao Leng
2021-02-01 8:57 ` Hannes Reinecke [this message]
2021-02-01 9:40 ` Chao Leng
2021-02-01 10:45 ` Hannes Reinecke
2021-02-02 1:12 ` Chao Leng
2021-01-28 1:36 ` Chao Leng
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